CINXE.COM

<!DOCTYPE html> <html lang="en" data-color-mode="auto" data-light-theme="light" data-dark-theme="dark" data-a11y-animated-images="system" data-a11y-link-underlines="true" > <head> <meta charset="utf-8"> <link rel="dns-prefetch" href="https://github.githubassets.com"> <link rel="dns-prefetch" href="https://avatars.githubusercontent.com"> <link rel="dns-prefetch" href="https://github-cloud.s3.amazonaws.com"> <link rel="dns-prefetch" href="https://user-images.githubusercontent.com/"> <link rel="preconnect" href="https://github.githubassets.com" crossorigin> <link rel="preconnect" href="https://avatars.githubusercontent.com"> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/light-74231a1f3bbb.css" /><link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/dark-8a995f0bacd4.css" /><link data-color-theme="dark_dimmed" crossorigin="anonymous" media="all" rel="stylesheet" data-href="https://github.githubassets.com/assets/dark_dimmed-f37fb7684b1f.css" /><link data-color-theme="dark_high_contrast" crossorigin="anonymous" media="all" rel="stylesheet" data-href="https://github.githubassets.com/assets/dark_high_contrast-9ac301c3ebe5.css" /><link data-color-theme="dark_colorblind" crossorigin="anonymous" media="all" rel="stylesheet" data-href="https://github.githubassets.com/assets/dark_colorblind-cd826e8636dc.css" /><link data-color-theme="light_colorblind" crossorigin="anonymous" media="all" rel="stylesheet" data-href="https://github.githubassets.com/assets/light_colorblind-f91b0f603451.css" /><link data-color-theme="light_high_contrast" crossorigin="anonymous" media="all" rel="stylesheet" data-href="https://github.githubassets.com/assets/light_high_contrast-83beb16e0ecf.css" /><link data-color-theme="light_tritanopia" crossorigin="anonymous" media="all" rel="stylesheet" data-href="https://github.githubassets.com/assets/light_tritanopia-6e122dab64fc.css" /><link data-color-theme="dark_tritanopia" crossorigin="anonymous" media="all" rel="stylesheet" data-href="https://github.githubassets.com/assets/dark_tritanopia-18119e682df0.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/primer-primitives-225433424a87.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/primer-cba26849680f.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/global-cbc6bc3d1003.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/github-ea73c9cb5377.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/repository-4fce88777fa8.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/code-0210be90f4d3.css" /> <script type="application/json" id="client-env">{"locale":"en","featureFlags":["allow_subscription_halted_error","contentful_lp_flex_features_actions","contentful_lp_flex_features_codespaces","contentful_lp_flex_features_code_review","contentful_lp_flex_features_code_search","contentful_lp_flex_features_discussions","contentful_lp_flex_features_issues","copilot_immersive_issue_preview","copilot_new_references_ui","copilot_chat_custom_instructions","copilot_chat_repo_custom_instructions_preview","copilot_chat_show_model_picker_on_retry","copilot_no_floating_button","copilot_topics_as_references","copilot_read_shared_conversation","copilot_duplicate_thread","copilot_free_to_paid_telem","dotcom_chat_client_side_skills","experimentation_azure_variant_endpoint","failbot_handle_non_errors","geojson_azure_maps","ghost_pilot_confidence_truncation_25","ghost_pilot_confidence_truncation_40","github_models_gateway_parse_params","github_models_o3_mini_streaming","insert_before_patch","issues_advanced_search_has_filter","issues_react_remove_placeholders","issues_react_blur_item_picker_on_close","issues_advanced_search_nested_ownership_filters","issues_dashboard_no_redirects","marketing_pages_search_explore_provider","primer_react_css_modules_ga","react_data_router_pull_requests","remove_child_patch","sample_network_conn_type","swp_enterprise_contact_form","site_copilot_pro_plus","site_proxima_australia_update","viewscreen_sandbox","issues_react_create_milestone","lifecycle_label_name_updates","copilot_task_oriented_assistive_prompts","issues_react_grouped_diff_on_edit_history","issues_react_feature_preview_is_over","refresh_image_video_src","codespaces_prebuild_region_target_update","copilot_code_review_sign_up_closed"]}</script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/wp-runtime-2999ea9362e8.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_oddbird_popover-polyfill_dist_popover_js-9da652f58479.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_arianotify-polyfill_ariaNotify-polyfill_js-node_modules_github_mi-3abb8f-46b9f4874d95.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/ui_packages_failbot_failbot_ts-952d624642a1.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/environment-f04cb2a9fc8c.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_primer_behaviors_dist_esm_index_mjs-0dbb79f97f8f.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_selector-observer_dist_index_esm_js-f690fd9ae3d5.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_relative-time-element_dist_index_js-62d275b7ddd9.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_text-expander-element_dist_index_js-78748950cb0c.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_auto-complete-element_dist_index_js-node_modules_github_catalyst_-8e9f78-a90ac05d2469.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_filter-input-element_dist_index_js-node_modules_github_remote-inp-b5f1d7-a1760ffda83d.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_markdown-toolbar-element_dist_index_js-ceef33f593fa.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_file-attachment-element_dist_index_js-node_modules_primer_view-co-c44a69-efa32db3a345.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/github-elements-394f8eb34f19.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/element-registry-c20bd0705df8.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_braintree_browser-detection_dist_browser-detection_js-node_modules_githu-2906d7-2a07a295af40.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_lit-html_lit-html_js-be8cb88f481b.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_mini-throttle_dist_index_js-node_modules_morphdom_dist_morphdom-e-7c534c-a4a1922eb55f.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_turbo_dist_turbo_es2017-esm_js-a03ee12d659a.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_remote-form_dist_index_js-node_modules_delegated-events_dist_inde-893f9f-b6294cf703b7.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_color-convert_index_js-e3180fe3bcb3.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_quote-selection_dist_index_js-node_modules_github_session-resume_-947061-e7a6c4a19f98.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/ui_packages_updatable-content_updatable-content_ts-62f3e9c52ece.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/app_assets_modules_github_behaviors_task-list_ts-app_assets_modules_github_sso_ts-ui_packages-900dde-768abe60b1f8.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/app_assets_modules_github_sticky-scroll-into-view_ts-3e000c5d31a9.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/app_assets_modules_github_behaviors_ajax-error_ts-app_assets_modules_github_behaviors_include-d0d0a6-e7f74ee74d91.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/app_assets_modules_github_behaviors_commenting_edit_ts-app_assets_modules_github_behaviors_ht-83c235-4bcbbbfbe1d4.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/behaviors-4414ad8b510b.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_delegated-events_dist_index_js-node_modules_github_catalyst_lib_index_js-f6223d90c7ba.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/notifications-global-01e85cd1be94.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_virtualized-list_es_index_js-node_modules_github_template-parts_lib_index_js-94dc7a2157c1.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_remote-form_dist_index_js-node_modules_delegated-events_dist_inde-70450e-4b93df70b903.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/app_assets_modules_github_ref-selector_ts-52913063a0b9.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/codespaces-b419a25ee02f.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_filter-input-element_dist_index_js-node_modules_github_remote-inp-3eebbd-0763620ad7bf.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_mini-throttle_dist_decorators_js-node_modules_delegated-events_di-e161aa-9d41fb1b6c9e.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_file-attachment-element_dist_index_js-node_modules_github_remote--3c9c82-b71ef90fbdc7.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/repositories-10217e4e5a53.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_mini-throttle_dist_index_js-node_modules_github_catalyst_lib_inde-dbbea9-26cce2010167.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/code-menu-d6d3c94ee97e.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/primer-react-350730ea92ff.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/react-core-4e4deaa097d6.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/react-lib-1622bd1e542f.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/octicons-react-cf2f2ab8dab4.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_emotion_is-prop-valid_dist_emotion-is-prop-valid_esm_js-node_modules_emo-41b1a8-555bc0cf9cab.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_mini-throttle_dist_index_js-node_modules_stacktrace-parser_dist_s-e7dcdd-9a233856b02c.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_oddbird_popover-polyfill_dist_popover-fn_js-55fea94174bf.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/notifications-subscriptions-menu-53aa08c61b34.js"></script> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/primer-react.eebd62883c61d2053717.module.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/notifications-subscriptions-menu.1bcff9205c241e99cff2.module.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/primer-react.eebd62883c61d2053717.module.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/notifications-subscriptions-menu.1bcff9205c241e99cff2.module.css" /> <title>GitHub - terser/terser: 🗜 JavaScript parser, mangler and compressor toolkit for ES6+</title> <meta name="route-pattern" content="/:user_id/:repository" data-turbo-transient> <meta name="route-controller" content="files" data-turbo-transient> <meta name="route-action" content="disambiguate" data-turbo-transient> <meta name="current-catalog-service-hash" content="f3abb0cc802f3d7b95fc8762b94bdcb13bf39634c40c357301c4aa1d67a256fb"> <meta name="request-id" content="D1D4:CBB75:1EEF33:22B605:67F80D1C" data-pjax-transient="true"/><meta name="html-safe-nonce" content="1fa1ba6886e22aab67f29b40550de962840c6cfa0099638e1f17406a08d05663" data-pjax-transient="true"/><meta name="visitor-payload" content="eyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJEMUQ0OkNCQjc1OjFFRUYzMzoyMkI2MDU6NjdGODBEMUMiLCJ2aXNpdG9yX2lkIjoiMTMzNzkwNDUzNjYwOTA5OTAzNiIsInJlZ2lvbl9lZGdlIjoic291dGhlYXN0YXNpYSIsInJlZ2lvbl9yZW5kZXIiOiJzb3V0aGVhc3Rhc2lhIn0=" data-pjax-transient="true"/><meta name="visitor-hmac" content="b44cdd32dc65f15f4c70955c8f4328923c63fbfc94049ccd965e38860004e19c" data-pjax-transient="true"/> <meta name="hovercard-subject-tag" content="repository:29097127" data-turbo-transient> <meta name="github-keyboard-shortcuts" content="repository,copilot" data-turbo-transient="true" /> <meta name="selected-link" value="repo_source" data-turbo-transient> <link rel="assets" href="https://github.githubassets.com/"> <meta name="google-site-verification" content="Apib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I"> <meta name="octolytics-url" content="https://collector.github.com/github/collect" /> <meta name="analytics-location" content="/<user-name>/<repo-name>" data-turbo-transient="true" /> <meta name="user-login" content=""> <meta name="viewport" content="width=device-width"> <meta name="description" content="🗜 JavaScript parser, mangler and compressor toolkit for ES6+ - terser/terser"> <link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="GitHub"> <link rel="fluid-icon" href="https://github.com/fluidicon.png" title="GitHub"> <meta property="fb:app_id" content="1401488693436528"> <meta name="apple-itunes-app" content="app-id=1477376905, app-argument=https://github.com/terser/terser" /> <meta name="twitter:image" content="https://opengraph.githubassets.com/2517ae5867f3f3d8cf5feceec2b40fbfbf100ccec9279b6fd28a3b52d2217046/terser/terser" /><meta name="twitter:site" content="@github" /><meta name="twitter:card" content="summary_large_image" /><meta name="twitter:title" content="GitHub - terser/terser: 🗜 JavaScript parser, mangler and compressor toolkit for ES6+" /><meta name="twitter:description" content="🗜 JavaScript parser, mangler and compressor toolkit for ES6+ - terser/terser" /> <meta property="og:image" content="https://opengraph.githubassets.com/2517ae5867f3f3d8cf5feceec2b40fbfbf100ccec9279b6fd28a3b52d2217046/terser/terser" /><meta property="og:image:alt" content="🗜 JavaScript parser, mangler and compressor toolkit for ES6+ - terser/terser" /><meta property="og:image:width" content="1200" /><meta property="og:image:height" content="600" /><meta property="og:site_name" content="GitHub" /><meta property="og:type" content="object" /><meta property="og:title" content="GitHub - terser/terser: 🗜 JavaScript parser, mangler and compressor toolkit for ES6+" /><meta property="og:url" content="https://github.com/terser/terser" /><meta property="og:description" content="🗜 JavaScript parser, mangler and compressor toolkit for ES6+ - terser/terser" /> <meta name="hostname" content="github.com"> <meta name="expected-hostname" content="github.com"> <meta http-equiv="x-pjax-version" content="5b8377d02b35fc2fb60374f399c62902d1661d51ed9a88f7e96cb7e5d62383c4" data-turbo-track="reload"> <meta http-equiv="x-pjax-csp-version" content="e26f9f0ba624ee85cc7ac057d8faa8618a4f25a85eab052c33d018ac0f6b1a46" data-turbo-track="reload"> <meta http-equiv="x-pjax-css-version" content="3cc343cb09f6c060d681030301f2f209ed6398fe7fc943dea1b120d06a1494a7" data-turbo-track="reload"> <meta http-equiv="x-pjax-js-version" content="cb74db9f8344a1bf9869673dcacc9bc7cc9bdb3e0eda96e862abc90d4ac70d6f" data-turbo-track="reload"> <meta name="turbo-cache-control" content="no-preview" data-turbo-transient=""> <meta data-hydrostats="publish"> <meta name="go-import" content="github.com/terser/terser git https://github.com/terser/terser.git"> <meta name="octolytics-dimension-user_id" content="43502240" /><meta name="octolytics-dimension-user_login" content="terser" /><meta name="octolytics-dimension-repository_id" content="29097127" /><meta name="octolytics-dimension-repository_nwo" content="terser/terser" /><meta name="octolytics-dimension-repository_public" content="true" /><meta name="octolytics-dimension-repository_is_fork" content="false" /><meta name="octolytics-dimension-repository_network_root_id" content="29097127" /><meta name="octolytics-dimension-repository_network_root_nwo" content="terser/terser" /> <link rel="canonical" href="https://github.com/terser/terser" data-turbo-transient> <meta name="turbo-body-classes" content="logged-out env-production page-responsive"> <meta name="browser-stats-url" content="https://api.github.com/_private/browser/stats"> <meta name="browser-errors-url" content="https://api.github.com/_private/browser/errors"> <meta name="release" content="1945a22fec2a937945ab0d376aeb713ec58a2d80"> <link rel="mask-icon" href="https://github.githubassets.com/assets/pinned-octocat-093da3e6fa40.svg" color="#000000"> <link rel="alternate icon" class="js-site-favicon" type="image/png" href="https://github.githubassets.com/favicons/favicon.png"> <link rel="icon" class="js-site-favicon" type="image/svg+xml" href="https://github.githubassets.com/favicons/favicon.svg" data-base-href="https://github.githubassets.com/favicons/favicon"> <meta name="theme-color" content="#1e2327"> <meta name="color-scheme" content="light dark" /> <link rel="manifest" href="/manifest.json" crossOrigin="use-credentials"> </head> <body class="logged-out env-production page-responsive" style="word-wrap: break-word;"> <div data-turbo-body class="logged-out env-production page-responsive" style="word-wrap: break-word;"> <div class="position-relative header-wrapper js-header-wrapper "> <a href="#start-of-content" data-skip-target-assigned="false" class="px-2 py-4 color-bg-accent-emphasis color-fg-on-emphasis show-on-focus js-skip-to-content">Skip to content</a> <span data-view-component="true" class="progress-pjax-loader Progress position-fixed width-full"> <span style="width: 0%;" data-view-component="true" class="Progress-item progress-pjax-loader-bar left-0 top-0 color-bg-accent-emphasis"></span> </span> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/ui_packages_ui-commands_ui-commands_ts-2d52c8e72e64.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/keyboard-shortcuts-dialog-2560f573c7ca.js"></script> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/primer-react.eebd62883c61d2053717.module.css" /> <react-partial partial-name="keyboard-shortcuts-dialog" data-ssr="false" data-attempted-ssr="false" > <script type="application/json" data-target="react-partial.embeddedData">{"props":{"docsUrl":"https://docs.github.com/get-started/accessibility/keyboard-shortcuts"}}</script> <div data-target="react-partial.reactRoot"></div> </react-partial> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_remote-form_dist_index_js-node_modules_delegated-events_dist_inde-94fd67-4898d1bf4b51.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/sessions-45d6658f8b6b.js"></script> <header class="HeaderMktg header-logged-out js-details-container js-header Details f4 py-3" role="banner" data-is-top="true" data-color-mode=light data-light-theme=light data-dark-theme=dark> <h2 class="sr-only">Navigation Menu</h2> <button type="button" class="HeaderMktg-backdrop d-lg-none border-0 position-fixed top-0 left-0 width-full height-full js-details-target" aria-label="Toggle navigation"> <span class="d-none">Toggle navigation</span> </button> <div class="d-flex flex-column flex-lg-row flex-items-center px-3 px-md-4 px-lg-5 height-full position-relative z-1"> <div class="d-flex flex-justify-between flex-items-center width-full width-lg-auto"> <div class="flex-1"> <button aria-label="Toggle navigation" aria-expanded="false" type="button" data-view-component="true" class="js-details-target js-nav-padding-recalculate js-header-menu-toggle Button--link Button--medium Button d-lg-none color-fg-inherit p-1"> <span class="Button-content"> <span class="Button-label"><div class="HeaderMenu-toggle-bar rounded my-1"></div> <div class="HeaderMenu-toggle-bar rounded my-1"></div> <div class="HeaderMenu-toggle-bar rounded my-1"></div></span> </span> </button> </div> <a class="mr-lg-3 color-fg-inherit flex-order-2 js-prevent-focus-on-mobile-nav" href="/" aria-label="Homepage" data-analytics-event="{"category":"Marketing nav","action":"click to go to homepage","label":"ref_page:Marketing;ref_cta:Logomark;ref_loc:Header"}"> <svg height="32" aria-hidden="true" viewBox="0 0 24 24" version="1.1" width="32" data-view-component="true" class="octicon octicon-mark-github"> <path d="M12 1C5.9225 1 1 5.9225 1 12C1 16.8675 4.14875 20.9787 8.52125 22.4362C9.07125 22.5325 9.2775 22.2025 9.2775 21.9137C9.2775 21.6525 9.26375 20.7862 9.26375 19.865C6.5 20.3737 5.785 19.1912 5.565 18.5725C5.44125 18.2562 4.905 17.28 4.4375 17.0187C4.0525 16.8125 3.5025 16.3037 4.42375 16.29C5.29 16.2762 5.90875 17.0875 6.115 17.4175C7.105 19.0812 8.68625 18.6137 9.31875 18.325C9.415 17.61 9.70375 17.1287 10.02 16.8537C7.5725 16.5787 5.015 15.63 5.015 11.4225C5.015 10.2262 5.44125 9.23625 6.1425 8.46625C6.0325 8.19125 5.6475 7.06375 6.2525 5.55125C6.2525 5.55125 7.17375 5.2625 9.2775 6.67875C10.1575 6.43125 11.0925 6.3075 12.0275 6.3075C12.9625 6.3075 13.8975 6.43125 14.7775 6.67875C16.8813 5.24875 17.8025 5.55125 17.8025 5.55125C18.4075 7.06375 18.0225 8.19125 17.9125 8.46625C18.6138 9.23625 19.04 10.2125 19.04 11.4225C19.04 15.6437 16.4688 16.5787 14.0213 16.8537C14.42 17.1975 14.7638 17.8575 14.7638 18.8887C14.7638 20.36 14.75 21.5425 14.75 21.9137C14.75 22.2025 14.9563 22.5462 15.5063 22.4362C19.8513 20.9787 23 16.8537 23 12C23 5.9225 18.0775 1 12 1Z"></path> </svg> </a> <div class="flex-1 flex-order-2 text-right"> <a href="/login?return_to=https%3A%2F%2Fgithub.com%2Fterser%2Fterser" class="HeaderMenu-link HeaderMenu-button d-inline-flex d-lg-none flex-order-1 f5 no-underline border color-border-default rounded-2 px-2 py-1 color-fg-inherit js-prevent-focus-on-mobile-nav" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"site header menu","repository_id":null,"auth_type":"SIGN_UP","originating_url":"https://github.com/terser/terser","user_id":null}}" data-hydro-click-hmac="bc400fd246b220e4db49fa6d63e48ad181e17658c440b31dfbc157ccc3da3525" data-analytics-event="{"category":"Marketing nav","action":"click to Sign in","label":"ref_page:Marketing;ref_cta:Sign in;ref_loc:Header"}" > Sign in </a> </div> </div> <div class="HeaderMenu js-header-menu height-fit position-lg-relative d-lg-flex flex-column flex-auto top-0"> <div class="HeaderMenu-wrapper d-flex flex-column flex-self-start flex-lg-row flex-auto rounded rounded-lg-0"> <nav class="HeaderMenu-nav" aria-label="Global"> <ul class="d-lg-flex list-style-none"> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Product <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 d-lg-flex flex-wrap dropdown-menu-wide"> <div class="HeaderMenu-column px-lg-4 border-lg-right mb-4 mb-lg-0 pr-lg-7"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"github_copilot","context":"product","tag":"link","label":"github_copilot_link_product_navbar"}" href="https://github.com/features/copilot"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-copilot color-fg-subtle mr-3"> <path d="M23.922 16.992c-.861 1.495-5.859 5.023-11.922 5.023-6.063 0-11.061-3.528-11.922-5.023A.641.641 0 0 1 0 16.736v-2.869a.841.841 0 0 1 .053-.22c.372-.935 1.347-2.292 2.605-2.656.167-.429.414-1.055.644-1.517a10.195 10.195 0 0 1-.052-1.086c0-1.331.282-2.499 1.132-3.368.397-.406.89-.717 1.474-.952 1.399-1.136 3.392-2.093 6.122-2.093 2.731 0 4.767.957 6.166 2.093.584.235 1.077.546 1.474.952.85.869 1.132 2.037 1.132 3.368 0 .368-.014.733-.052 1.086.23.462.477 1.088.644 1.517 1.258.364 2.233 1.721 2.605 2.656a.832.832 0 0 1 .053.22v2.869a.641.641 0 0 1-.078.256ZM12.172 11h-.344a4.323 4.323 0 0 1-.355.508C10.703 12.455 9.555 13 7.965 13c-1.725 0-2.989-.359-3.782-1.259a2.005 2.005 0 0 1-.085-.104L4 11.741v6.585c1.435.779 4.514 2.179 8 2.179 3.486 0 6.565-1.4 8-2.179v-6.585l-.098-.104s-.033.045-.085.104c-.793.9-2.057 1.259-3.782 1.259-1.59 0-2.738-.545-3.508-1.492a4.323 4.323 0 0 1-.355-.508h-.016.016Zm.641-2.935c.136 1.057.403 1.913.878 2.497.442.544 1.134.938 2.344.938 1.573 0 2.292-.337 2.657-.751.384-.435.558-1.15.558-2.361 0-1.14-.243-1.847-.705-2.319-.477-.488-1.319-.862-2.824-1.025-1.487-.161-2.192.138-2.533.529-.269.307-.437.808-.438 1.578v.021c0 .265.021.562.063.893Zm-1.626 0c.042-.331.063-.628.063-.894v-.02c-.001-.77-.169-1.271-.438-1.578-.341-.391-1.046-.69-2.533-.529-1.505.163-2.347.537-2.824 1.025-.462.472-.705 1.179-.705 2.319 0 1.211.175 1.926.558 2.361.365.414 1.084.751 2.657.751 1.21 0 1.902-.394 2.344-.938.475-.584.742-1.44.878-2.497Z"></path><path d="M14.5 14.25a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Zm-5 0a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Z"></path> </svg> <div> <div class="color-fg-default h4">GitHub Copilot</div> Write better code with AI </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"github_advanced_security","context":"product","tag":"link","label":"github_advanced_security_link_product_navbar"}" href="https://github.com/security/advanced-security"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-shield-check color-fg-subtle mr-3"> <path d="M16.53 9.78a.75.75 0 0 0-1.06-1.06L11 13.19l-1.97-1.97a.75.75 0 0 0-1.06 1.06l2.5 2.5a.75.75 0 0 0 1.06 0l5-5Z"></path><path d="m12.54.637 8.25 2.675A1.75 1.75 0 0 1 22 4.976V10c0 6.19-3.771 10.704-9.401 12.83a1.704 1.704 0 0 1-1.198 0C5.77 20.705 2 16.19 2 10V4.976c0-.758.489-1.43 1.21-1.664L11.46.637a1.748 1.748 0 0 1 1.08 0Zm-.617 1.426-8.25 2.676a.249.249 0 0 0-.173.237V10c0 5.46 3.28 9.483 8.43 11.426a.199.199 0 0 0 .14 0C17.22 19.483 20.5 15.461 20.5 10V4.976a.25.25 0 0 0-.173-.237l-8.25-2.676a.253.253 0 0 0-.154 0Z"></path> </svg> <div> <div class="color-fg-default h4">GitHub Advanced Security</div> Find and fix vulnerabilities </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"actions","context":"product","tag":"link","label":"actions_link_product_navbar"}" href="https://github.com/features/actions"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-workflow color-fg-subtle mr-3"> <path d="M1 3a2 2 0 0 1 2-2h6.5a2 2 0 0 1 2 2v6.5a2 2 0 0 1-2 2H7v4.063C7 16.355 7.644 17 8.438 17H12.5v-2.5a2 2 0 0 1 2-2H21a2 2 0 0 1 2 2V21a2 2 0 0 1-2 2h-6.5a2 2 0 0 1-2-2v-2.5H8.437A2.939 2.939 0 0 1 5.5 15.562V11.5H3a2 2 0 0 1-2-2Zm2-.5a.5.5 0 0 0-.5.5v6.5a.5.5 0 0 0 .5.5h6.5a.5.5 0 0 0 .5-.5V3a.5.5 0 0 0-.5-.5ZM14.5 14a.5.5 0 0 0-.5.5V21a.5.5 0 0 0 .5.5H21a.5.5 0 0 0 .5-.5v-6.5a.5.5 0 0 0-.5-.5Z"></path> </svg> <div> <div class="color-fg-default h4">Actions</div> Automate any workflow </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"codespaces","context":"product","tag":"link","label":"codespaces_link_product_navbar"}" href="https://github.com/features/codespaces"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-codespaces color-fg-subtle mr-3"> <path d="M3.5 3.75C3.5 2.784 4.284 2 5.25 2h13.5c.966 0 1.75.784 1.75 1.75v7.5A1.75 1.75 0 0 1 18.75 13H5.25a1.75 1.75 0 0 1-1.75-1.75Zm-2 12c0-.966.784-1.75 1.75-1.75h17.5c.966 0 1.75.784 1.75 1.75v4a1.75 1.75 0 0 1-1.75 1.75H3.25a1.75 1.75 0 0 1-1.75-1.75ZM5.25 3.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h13.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Zm-2 12a.25.25 0 0 0-.25.25v4c0 .138.112.25.25.25h17.5a.25.25 0 0 0 .25-.25v-4a.25.25 0 0 0-.25-.25Z"></path><path d="M10 17.75a.75.75 0 0 1 .75-.75h6.5a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1-.75-.75Zm-4 0a.75.75 0 0 1 .75-.75h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1-.75-.75Z"></path> </svg> <div> <div class="color-fg-default h4">Codespaces</div> Instant dev environments </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"issues","context":"product","tag":"link","label":"issues_link_product_navbar"}" href="https://github.com/features/issues"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-issue-opened color-fg-subtle mr-3"> <path d="M12 1c6.075 0 11 4.925 11 11s-4.925 11-11 11S1 18.075 1 12 5.925 1 12 1ZM2.5 12a9.5 9.5 0 0 0 9.5 9.5 9.5 9.5 0 0 0 9.5-9.5A9.5 9.5 0 0 0 12 2.5 9.5 9.5 0 0 0 2.5 12Zm9.5 2a2 2 0 1 1-.001-3.999A2 2 0 0 1 12 14Z"></path> </svg> <div> <div class="color-fg-default h4">Issues</div> Plan and track work </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"code_review","context":"product","tag":"link","label":"code_review_link_product_navbar"}" href="https://github.com/features/code-review"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-code-review color-fg-subtle mr-3"> <path d="M10.3 6.74a.75.75 0 0 1-.04 1.06l-2.908 2.7 2.908 2.7a.75.75 0 1 1-1.02 1.1l-3.5-3.25a.75.75 0 0 1 0-1.1l3.5-3.25a.75.75 0 0 1 1.06.04Zm3.44 1.06a.75.75 0 1 1 1.02-1.1l3.5 3.25a.75.75 0 0 1 0 1.1l-3.5 3.25a.75.75 0 1 1-1.02-1.1l2.908-2.7-2.908-2.7Z"></path><path d="M1.5 4.25c0-.966.784-1.75 1.75-1.75h17.5c.966 0 1.75.784 1.75 1.75v12.5a1.75 1.75 0 0 1-1.75 1.75h-9.69l-3.573 3.573A1.458 1.458 0 0 1 5 21.043V18.5H3.25a1.75 1.75 0 0 1-1.75-1.75ZM3.25 4a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h2.5a.75.75 0 0 1 .75.75v3.19l3.72-3.72a.749.749 0 0 1 .53-.22h10a.25.25 0 0 0 .25-.25V4.25a.25.25 0 0 0-.25-.25Z"></path> </svg> <div> <div class="color-fg-default h4">Code Review</div> Manage code changes </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"discussions","context":"product","tag":"link","label":"discussions_link_product_navbar"}" href="https://github.com/features/discussions"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-comment-discussion color-fg-subtle mr-3"> <path d="M1.75 1h12.5c.966 0 1.75.784 1.75 1.75v9.5A1.75 1.75 0 0 1 14.25 14H8.061l-2.574 2.573A1.458 1.458 0 0 1 3 15.543V14H1.75A1.75 1.75 0 0 1 0 12.25v-9.5C0 1.784.784 1 1.75 1ZM1.5 2.75v9.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h6.5a.25.25 0 0 0 .25-.25v-9.5a.25.25 0 0 0-.25-.25H1.75a.25.25 0 0 0-.25.25Z"></path><path d="M22.5 8.75a.25.25 0 0 0-.25-.25h-3.5a.75.75 0 0 1 0-1.5h3.5c.966 0 1.75.784 1.75 1.75v9.5A1.75 1.75 0 0 1 22.25 20H21v1.543a1.457 1.457 0 0 1-2.487 1.03L15.939 20H10.75A1.75 1.75 0 0 1 9 18.25v-1.465a.75.75 0 0 1 1.5 0v1.465c0 .138.112.25.25.25h5.5a.75.75 0 0 1 .53.22l2.72 2.72v-2.19a.75.75 0 0 1 .75-.75h2a.25.25 0 0 0 .25-.25v-9.5Z"></path> </svg> <div> <div class="color-fg-default h4">Discussions</div> Collaborate outside of code </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"code_search","context":"product","tag":"link","label":"code_search_link_product_navbar"}" href="https://github.com/features/code-search"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-code-square color-fg-subtle mr-3"> <path d="M10.3 8.24a.75.75 0 0 1-.04 1.06L7.352 12l2.908 2.7a.75.75 0 1 1-1.02 1.1l-3.5-3.25a.75.75 0 0 1 0-1.1l3.5-3.25a.75.75 0 0 1 1.06.04Zm3.44 1.06a.75.75 0 1 1 1.02-1.1l3.5 3.25a.75.75 0 0 1 0 1.1l-3.5 3.25a.75.75 0 1 1-1.02-1.1l2.908-2.7-2.908-2.7Z"></path><path d="M2 3.75C2 2.784 2.784 2 3.75 2h16.5c.966 0 1.75.784 1.75 1.75v16.5A1.75 1.75 0 0 1 20.25 22H3.75A1.75 1.75 0 0 1 2 20.25Zm1.75-.25a.25.25 0 0 0-.25.25v16.5c0 .138.112.25.25.25h16.5a.25.25 0 0 0 .25-.25V3.75a.25.25 0 0 0-.25-.25Z"></path> </svg> <div> <div class="color-fg-default h4">Code Search</div> Find more, search less </div> </a></li> </ul> </div> </div> <div class="HeaderMenu-column px-lg-4"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0 border-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="product-explore-heading">Explore</span> <ul class="list-style-none f5" aria-labelledby="product-explore-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"all_features","context":"product","tag":"link","label":"all_features_link_product_navbar"}" href="https://github.com/features"> All features </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"documentation","context":"product","tag":"link","label":"documentation_link_product_navbar"}" href="https://docs.github.com"> Documentation <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"github_skills","context":"product","tag":"link","label":"github_skills_link_product_navbar"}" href="https://skills.github.com"> GitHub Skills <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"blog","context":"product","tag":"link","label":"blog_link_product_navbar"}" href="https://github.blog"> Blog <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> </ul> </div> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Solutions <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 d-lg-flex flex-wrap dropdown-menu-wide"> <div class="HeaderMenu-column px-lg-4 border-lg-right mb-4 mb-lg-0 pr-lg-7"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0 pb-lg-3 mb-3 mb-lg-0"> <span class="d-block h4 color-fg-default my-1" id="solutions-by-company-size-heading">By company size</span> <ul class="list-style-none f5" aria-labelledby="solutions-by-company-size-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"enterprises","context":"solutions","tag":"link","label":"enterprises_link_solutions_navbar"}" href="https://github.com/enterprise"> Enterprises </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"small_and_medium_teams","context":"solutions","tag":"link","label":"small_and_medium_teams_link_solutions_navbar"}" href="https://github.com/team"> Small and medium teams </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"startups","context":"solutions","tag":"link","label":"startups_link_solutions_navbar"}" href="https://github.com/enterprise/startups"> Startups </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"nonprofits","context":"solutions","tag":"link","label":"nonprofits_link_solutions_navbar"}" href="/solutions/industry/nonprofits"> Nonprofits </a></li> </ul> </div> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="solutions-by-use-case-heading">By use case</span> <ul class="list-style-none f5" aria-labelledby="solutions-by-use-case-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"devsecops","context":"solutions","tag":"link","label":"devsecops_link_solutions_navbar"}" href="/solutions/use-case/devsecops"> DevSecOps </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"devops","context":"solutions","tag":"link","label":"devops_link_solutions_navbar"}" href="/solutions/use-case/devops"> DevOps </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"ci_cd","context":"solutions","tag":"link","label":"ci_cd_link_solutions_navbar"}" href="/solutions/use-case/ci-cd"> CI/CD </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"view_all_use_cases","context":"solutions","tag":"link","label":"view_all_use_cases_link_solutions_navbar"}" href="/solutions/use-case"> View all use cases </a></li> </ul> </div> </div> <div class="HeaderMenu-column px-lg-4"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="solutions-by-industry-heading">By industry</span> <ul class="list-style-none f5" aria-labelledby="solutions-by-industry-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"healthcare","context":"solutions","tag":"link","label":"healthcare_link_solutions_navbar"}" href="/solutions/industry/healthcare"> Healthcare </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"financial_services","context":"solutions","tag":"link","label":"financial_services_link_solutions_navbar"}" href="/solutions/industry/financial-services"> Financial services </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"manufacturing","context":"solutions","tag":"link","label":"manufacturing_link_solutions_navbar"}" href="/solutions/industry/manufacturing"> Manufacturing </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"government","context":"solutions","tag":"link","label":"government_link_solutions_navbar"}" href="/solutions/industry/government"> Government </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"view_all_industries","context":"solutions","tag":"link","label":"view_all_industries_link_solutions_navbar"}" href="/solutions/industry"> View all industries </a></li> </ul> </div> </div> <div class="HeaderMenu-trailing-link rounded-bottom-2 flex-shrink-0 mt-lg-4 px-lg-4 py-4 py-lg-3 f5 text-semibold"> <a href="/solutions"> View all solutions <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-right HeaderMenu-trailing-link-icon"> <path d="M6.22 3.22a.75.75 0 0 1 1.06 0l4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L9.94 8 6.22 4.28a.75.75 0 0 1 0-1.06Z"></path> </svg> </a> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Resources <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 d-lg-flex flex-wrap dropdown-menu-wide"> <div class="HeaderMenu-column px-lg-4 border-lg-right mb-4 mb-lg-0 pr-lg-7"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="resources-topics-heading">Topics</span> <ul class="list-style-none f5" aria-labelledby="resources-topics-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"ai","context":"resources","tag":"link","label":"ai_link_resources_navbar"}" href="/resources/articles/ai"> AI </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"devops","context":"resources","tag":"link","label":"devops_link_resources_navbar"}" href="/resources/articles/devops"> DevOps </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"security","context":"resources","tag":"link","label":"security_link_resources_navbar"}" href="/resources/articles/security"> Security </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"software_development","context":"resources","tag":"link","label":"software_development_link_resources_navbar"}" href="/resources/articles/software-development"> Software Development </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"view_all","context":"resources","tag":"link","label":"view_all_link_resources_navbar"}" href="/resources/articles"> View all </a></li> </ul> </div> </div> <div class="HeaderMenu-column px-lg-4"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0 border-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="resources-explore-heading">Explore</span> <ul class="list-style-none f5" aria-labelledby="resources-explore-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"learning_pathways","context":"resources","tag":"link","label":"learning_pathways_link_resources_navbar"}" href="https://resources.github.com/learn/pathways"> Learning Pathways <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"events_amp_webinars","context":"resources","tag":"link","label":"events_amp_webinars_link_resources_navbar"}" href="https://resources.github.com"> Events & Webinars <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"ebooks_amp_whitepapers","context":"resources","tag":"link","label":"ebooks_amp_whitepapers_link_resources_navbar"}" href="https://github.com/resources/whitepapers"> Ebooks & Whitepapers </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"customer_stories","context":"resources","tag":"link","label":"customer_stories_link_resources_navbar"}" href="https://github.com/customer-stories"> Customer Stories </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"partners","context":"resources","tag":"link","label":"partners_link_resources_navbar"}" href="https://partner.github.com"> Partners <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"executive_insights","context":"resources","tag":"link","label":"executive_insights_link_resources_navbar"}" href="https://github.com/solutions/executive-insights"> Executive Insights </a></li> </ul> </div> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Open Source <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 px-lg-4"> <div class="HeaderMenu-column"> <div class="border-bottom pb-3 pb-lg-0 pb-lg-3 mb-3 mb-lg-0 mb-lg-3"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"github_sponsors","context":"open_source","tag":"link","label":"github_sponsors_link_open_source_navbar"}" href="/sponsors"> <div> <div class="color-fg-default h4">GitHub Sponsors</div> Fund open source developers </div> </a></li> </ul> </div> <div class="border-bottom pb-3 pb-lg-0 pb-lg-3 mb-3 mb-lg-0 mb-lg-3"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"the_readme_project","context":"open_source","tag":"link","label":"the_readme_project_link_open_source_navbar"}" href="https://github.com/readme"> <div> <div class="color-fg-default h4">The ReadME Project</div> GitHub community articles </div> </a></li> </ul> </div> <div class="border-bottom pb-3 pb-lg-0 border-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="open-source-repositories-heading">Repositories</span> <ul class="list-style-none f5" aria-labelledby="open-source-repositories-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"topics","context":"open_source","tag":"link","label":"topics_link_open_source_navbar"}" href="https://github.com/topics"> Topics </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"trending","context":"open_source","tag":"link","label":"trending_link_open_source_navbar"}" href="https://github.com/trending"> Trending </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"collections","context":"open_source","tag":"link","label":"collections_link_open_source_navbar"}" href="https://github.com/collections"> Collections </a></li> </ul> </div> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Enterprise <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 px-lg-4"> <div class="HeaderMenu-column"> <div class="border-bottom pb-3 pb-lg-0 pb-lg-3 mb-3 mb-lg-0 mb-lg-3"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"enterprise_platform","context":"enterprise","tag":"link","label":"enterprise_platform_link_enterprise_navbar"}" href="/enterprise"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-stack color-fg-subtle mr-3"> <path d="M11.063 1.456a1.749 1.749 0 0 1 1.874 0l8.383 5.316a1.751 1.751 0 0 1 0 2.956l-8.383 5.316a1.749 1.749 0 0 1-1.874 0L2.68 9.728a1.751 1.751 0 0 1 0-2.956Zm1.071 1.267a.25.25 0 0 0-.268 0L3.483 8.039a.25.25 0 0 0 0 .422l8.383 5.316a.25.25 0 0 0 .268 0l8.383-5.316a.25.25 0 0 0 0-.422Z"></path><path d="M1.867 12.324a.75.75 0 0 1 1.035-.232l8.964 5.685a.25.25 0 0 0 .268 0l8.964-5.685a.75.75 0 0 1 .804 1.267l-8.965 5.685a1.749 1.749 0 0 1-1.874 0l-8.965-5.685a.75.75 0 0 1-.231-1.035Z"></path><path d="M1.867 16.324a.75.75 0 0 1 1.035-.232l8.964 5.685a.25.25 0 0 0 .268 0l8.964-5.685a.75.75 0 0 1 .804 1.267l-8.965 5.685a1.749 1.749 0 0 1-1.874 0l-8.965-5.685a.75.75 0 0 1-.231-1.035Z"></path> </svg> <div> <div class="color-fg-default h4">Enterprise platform</div> AI-powered developer platform </div> </a></li> </ul> </div> <div class="border-bottom pb-3 pb-lg-0 border-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="enterprise-available-add-ons-heading">Available add-ons</span> <ul class="list-style-none f5" aria-labelledby="enterprise-available-add-ons-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"github_advanced_security","context":"enterprise","tag":"link","label":"github_advanced_security_link_enterprise_navbar"}" href="https://github.com/security/advanced-security"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-shield-check color-fg-subtle mr-3"> <path d="M16.53 9.78a.75.75 0 0 0-1.06-1.06L11 13.19l-1.97-1.97a.75.75 0 0 0-1.06 1.06l2.5 2.5a.75.75 0 0 0 1.06 0l5-5Z"></path><path d="m12.54.637 8.25 2.675A1.75 1.75 0 0 1 22 4.976V10c0 6.19-3.771 10.704-9.401 12.83a1.704 1.704 0 0 1-1.198 0C5.77 20.705 2 16.19 2 10V4.976c0-.758.489-1.43 1.21-1.664L11.46.637a1.748 1.748 0 0 1 1.08 0Zm-.617 1.426-8.25 2.676a.249.249 0 0 0-.173.237V10c0 5.46 3.28 9.483 8.43 11.426a.199.199 0 0 0 .14 0C17.22 19.483 20.5 15.461 20.5 10V4.976a.25.25 0 0 0-.173-.237l-8.25-2.676a.253.253 0 0 0-.154 0Z"></path> </svg> <div> <div class="color-fg-default h4">GitHub Advanced Security</div> Enterprise-grade security features </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"copilot_for_business","context":"enterprise","tag":"link","label":"copilot_for_business_link_enterprise_navbar"}" href="/features/copilot/copilot-business"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-copilot color-fg-subtle mr-3"> <path d="M23.922 16.992c-.861 1.495-5.859 5.023-11.922 5.023-6.063 0-11.061-3.528-11.922-5.023A.641.641 0 0 1 0 16.736v-2.869a.841.841 0 0 1 .053-.22c.372-.935 1.347-2.292 2.605-2.656.167-.429.414-1.055.644-1.517a10.195 10.195 0 0 1-.052-1.086c0-1.331.282-2.499 1.132-3.368.397-.406.89-.717 1.474-.952 1.399-1.136 3.392-2.093 6.122-2.093 2.731 0 4.767.957 6.166 2.093.584.235 1.077.546 1.474.952.85.869 1.132 2.037 1.132 3.368 0 .368-.014.733-.052 1.086.23.462.477 1.088.644 1.517 1.258.364 2.233 1.721 2.605 2.656a.832.832 0 0 1 .053.22v2.869a.641.641 0 0 1-.078.256ZM12.172 11h-.344a4.323 4.323 0 0 1-.355.508C10.703 12.455 9.555 13 7.965 13c-1.725 0-2.989-.359-3.782-1.259a2.005 2.005 0 0 1-.085-.104L4 11.741v6.585c1.435.779 4.514 2.179 8 2.179 3.486 0 6.565-1.4 8-2.179v-6.585l-.098-.104s-.033.045-.085.104c-.793.9-2.057 1.259-3.782 1.259-1.59 0-2.738-.545-3.508-1.492a4.323 4.323 0 0 1-.355-.508h-.016.016Zm.641-2.935c.136 1.057.403 1.913.878 2.497.442.544 1.134.938 2.344.938 1.573 0 2.292-.337 2.657-.751.384-.435.558-1.15.558-2.361 0-1.14-.243-1.847-.705-2.319-.477-.488-1.319-.862-2.824-1.025-1.487-.161-2.192.138-2.533.529-.269.307-.437.808-.438 1.578v.021c0 .265.021.562.063.893Zm-1.626 0c.042-.331.063-.628.063-.894v-.02c-.001-.77-.169-1.271-.438-1.578-.341-.391-1.046-.69-2.533-.529-1.505.163-2.347.537-2.824 1.025-.462.472-.705 1.179-.705 2.319 0 1.211.175 1.926.558 2.361.365.414 1.084.751 2.657.751 1.21 0 1.902-.394 2.344-.938.475-.584.742-1.44.878-2.497Z"></path><path d="M14.5 14.25a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Zm-5 0a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Z"></path> </svg> <div> <div class="color-fg-default h4">Copilot for business</div> Enterprise-grade AI features </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"premium_support","context":"enterprise","tag":"link","label":"premium_support_link_enterprise_navbar"}" href="/premium-support"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-comment-discussion color-fg-subtle mr-3"> <path d="M1.75 1h12.5c.966 0 1.75.784 1.75 1.75v9.5A1.75 1.75 0 0 1 14.25 14H8.061l-2.574 2.573A1.458 1.458 0 0 1 3 15.543V14H1.75A1.75 1.75 0 0 1 0 12.25v-9.5C0 1.784.784 1 1.75 1ZM1.5 2.75v9.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h6.5a.25.25 0 0 0 .25-.25v-9.5a.25.25 0 0 0-.25-.25H1.75a.25.25 0 0 0-.25.25Z"></path><path d="M22.5 8.75a.25.25 0 0 0-.25-.25h-3.5a.75.75 0 0 1 0-1.5h3.5c.966 0 1.75.784 1.75 1.75v9.5A1.75 1.75 0 0 1 22.25 20H21v1.543a1.457 1.457 0 0 1-2.487 1.03L15.939 20H10.75A1.75 1.75 0 0 1 9 18.25v-1.465a.75.75 0 0 1 1.5 0v1.465c0 .138.112.25.25.25h5.5a.75.75 0 0 1 .53.22l2.72 2.72v-2.19a.75.75 0 0 1 .75-.75h2a.25.25 0 0 0 .25-.25v-9.5Z"></path> </svg> <div> <div class="color-fg-default h4">Premium Support</div> Enterprise-grade 24/7 support </div> </a></li> </ul> </div> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <a class="HeaderMenu-link no-underline px-0 px-lg-2 py-3 py-lg-2 d-block d-lg-inline-block" data-analytics-event="{"location":"navbar","action":"pricing","context":"global","tag":"link","label":"pricing_link_global_navbar"}" href="https://github.com/pricing">Pricing</a> </li> </ul> </nav> <div class="d-flex flex-column flex-lg-row width-full flex-justify-end flex-lg-items-center text-center mt-3 mt-lg-0 text-lg-left ml-lg-3"> <qbsearch-input class="search-input" data-scope="repo:terser/terser" data-custom-scopes-path="/search/custom_scopes" data-delete-custom-scopes-csrf="5yEENXsnG0C-2bF-lgNWjZNrIL0vcuyh06p3WUkLGFuOk-RyLfOzTx22IMP24YUbncwl4JrrpKJjPKvrOh0vUg" data-max-custom-scopes="10" data-header-redesign-enabled="false" data-initial-value="" data-blackbird-suggestions-path="/search/suggestions" data-jump-to-suggestions-path="/_graphql/GetSuggestedNavigationDestinations" data-current-repository="terser/terser" data-current-org="terser" data-current-owner="" data-logged-in="false" data-copilot-chat-enabled="false" data-nl-search-enabled="false" data-retain-scroll-position="true"> <div class="search-input-container search-with-dialog position-relative d-flex flex-row flex-items-center mr-4 rounded" data-action="click:qbsearch-input#searchInputContainerClicked" > <button type="button" class="header-search-button placeholder input-button form-control d-flex flex-1 flex-self-stretch flex-items-center no-wrap width-full py-0 pl-2 pr-0 text-left border-0 box-shadow-none" data-target="qbsearch-input.inputButton" aria-label="Search or jump to…" aria-haspopup="dialog" placeholder="Search or jump to..." data-hotkey=s,/ autocapitalize="off" data-analytics-event="{"location":"navbar","action":"searchbar","context":"global","tag":"input","label":"searchbar_input_global_navbar"}" data-action="click:qbsearch-input#handleExpand" > <div class="mr-2 color-fg-muted"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-search"> <path d="M10.68 11.74a6 6 0 0 1-7.922-8.982 6 6 0 0 1 8.982 7.922l3.04 3.04a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215ZM11.5 7a4.499 4.499 0 1 0-8.997 0A4.499 4.499 0 0 0 11.5 7Z"></path> </svg> </div> <span class="flex-1" data-target="qbsearch-input.inputButtonText">Search or jump to...</span> <div class="d-flex" data-target="qbsearch-input.hotkeyIndicator"> <svg xmlns="http://www.w3.org/2000/svg" width="22" height="20" aria-hidden="true" class="mr-1"><path fill="none" stroke="#979A9C" opacity=".4" d="M3.5.5h12c1.7 0 3 1.3 3 3v13c0 1.7-1.3 3-3 3h-12c-1.7 0-3-1.3-3-3v-13c0-1.7 1.3-3 3-3z"></path><path fill="#979A9C" d="M11.8 6L8 15.1h-.9L10.8 6h1z"></path></svg> </div> </button> <input type="hidden" name="type" class="js-site-search-type-field"> <div class="Overlay--hidden " data-modal-dialog-overlay> <modal-dialog data-action="close:qbsearch-input#handleClose cancel:qbsearch-input#handleClose" data-target="qbsearch-input.searchSuggestionsDialog" role="dialog" id="search-suggestions-dialog" aria-modal="true" aria-labelledby="search-suggestions-dialog-header" data-view-component="true" class="Overlay Overlay--width-large Overlay--height-auto"> <h1 id="search-suggestions-dialog-header" class="sr-only">Search code, repositories, users, issues, pull requests...</h1> <div class="Overlay-body Overlay-body--paddingNone"> <div data-view-component="true"> <div class="search-suggestions position-fixed width-full color-shadow-large border color-fg-default color-bg-default overflow-hidden d-flex flex-column query-builder-container" style="border-radius: 12px;" data-target="qbsearch-input.queryBuilderContainer" hidden > </option></form><form id="query-builder-test-form" action="" accept-charset="UTF-8" method="get"> <query-builder data-target="qbsearch-input.queryBuilder" id="query-builder-query-builder-test" data-filter-key=":" data-view-component="true" class="QueryBuilder search-query-builder"> <div class="FormControl FormControl--fullWidth"> <label id="query-builder-test-label" for="query-builder-test" class="FormControl-label sr-only"> Search </label> <div class="QueryBuilder-StyledInput width-fit " data-target="query-builder.styledInput" > <span id="query-builder-test-leadingvisual-wrap" class="FormControl-input-leadingVisualWrap QueryBuilder-leadingVisualWrap"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-search FormControl-input-leadingVisual"> <path d="M10.68 11.74a6 6 0 0 1-7.922-8.982 6 6 0 0 1 8.982 7.922l3.04 3.04a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215ZM11.5 7a4.499 4.499 0 1 0-8.997 0A4.499 4.499 0 0 0 11.5 7Z"></path> </svg> </span> <div data-target="query-builder.styledInputContainer" class="QueryBuilder-StyledInputContainer"> <div aria-hidden="true" class="QueryBuilder-StyledInputContent" data-target="query-builder.styledInputContent" ></div> <div class="QueryBuilder-InputWrapper"> <div aria-hidden="true" class="QueryBuilder-Sizer" data-target="query-builder.sizer"></div> <input id="query-builder-test" name="query-builder-test" value="" autocomplete="off" type="text" role="combobox" spellcheck="false" aria-expanded="false" aria-describedby="validation-8ce75341-3993-4470-b9fb-f9daa6a0f2c4" data-target="query-builder.input" data-action=" input:query-builder#inputChange blur:query-builder#inputBlur keydown:query-builder#inputKeydown focus:query-builder#inputFocus " data-view-component="true" class="FormControl-input QueryBuilder-Input FormControl-medium" /> </div> </div> <span class="sr-only" id="query-builder-test-clear">Clear</span> <button role="button" id="query-builder-test-clear-button" aria-labelledby="query-builder-test-clear query-builder-test-label" data-target="query-builder.clearButton" data-action=" click:query-builder#clear focus:query-builder#clearButtonFocus blur:query-builder#clearButtonBlur " variant="small" hidden="hidden" type="button" data-view-component="true" class="Button Button--iconOnly Button--invisible Button--medium mr-1 px-2 py-0 d-flex flex-items-center rounded-1 color-fg-muted"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x-circle-fill Button-visual"> <path d="M2.343 13.657A8 8 0 1 1 13.658 2.343 8 8 0 0 1 2.343 13.657ZM6.03 4.97a.751.751 0 0 0-1.042.018.751.751 0 0 0-.018 1.042L6.94 8 4.97 9.97a.749.749 0 0 0 .326 1.275.749.749 0 0 0 .734-.215L8 9.06l1.97 1.97a.749.749 0 0 0 1.275-.326.749.749 0 0 0-.215-.734L9.06 8l1.97-1.97a.749.749 0 0 0-.326-1.275.749.749 0 0 0-.734.215L8 6.94Z"></path> </svg> </button> </div> <template id="search-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-search"> <path d="M10.68 11.74a6 6 0 0 1-7.922-8.982 6 6 0 0 1 8.982 7.922l3.04 3.04a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215ZM11.5 7a4.499 4.499 0 1 0-8.997 0A4.499 4.499 0 0 0 11.5 7Z"></path> </svg> </template> <template id="code-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code"> <path d="m11.28 3.22 4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L13.94 8l-3.72-3.72a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215Zm-6.56 0a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042L2.06 8l3.72 3.72a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L.47 8.53a.75.75 0 0 1 0-1.06Z"></path> </svg> </template> <template id="file-code-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-file-code"> <path d="M4 1.75C4 .784 4.784 0 5.75 0h5.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v8.586A1.75 1.75 0 0 1 14.25 15h-9a.75.75 0 0 1 0-1.5h9a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 10 4.25V1.5H5.75a.25.25 0 0 0-.25.25v2.5a.75.75 0 0 1-1.5 0Zm1.72 4.97a.75.75 0 0 1 1.06 0l2 2a.75.75 0 0 1 0 1.06l-2 2a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734l1.47-1.47-1.47-1.47a.75.75 0 0 1 0-1.06ZM3.28 7.78 1.81 9.25l1.47 1.47a.751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018l-2-2a.75.75 0 0 1 0-1.06l2-2a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Zm8.22-6.218V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path> </svg> </template> <template id="history-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-history"> <path d="m.427 1.927 1.215 1.215a8.002 8.002 0 1 1-1.6 5.685.75.75 0 1 1 1.493-.154 6.5 6.5 0 1 0 1.18-4.458l1.358 1.358A.25.25 0 0 1 3.896 6H.25A.25.25 0 0 1 0 5.75V2.104a.25.25 0 0 1 .427-.177ZM7.75 4a.75.75 0 0 1 .75.75v2.992l2.028.812a.75.75 0 0 1-.557 1.392l-2.5-1A.751.751 0 0 1 7 8.25v-3.5A.75.75 0 0 1 7.75 4Z"></path> </svg> </template> <template id="repo-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo"> <path d="M2 2.5A2.5 2.5 0 0 1 4.5 0h8.75a.75.75 0 0 1 .75.75v12.5a.75.75 0 0 1-.75.75h-2.5a.75.75 0 0 1 0-1.5h1.75v-2h-8a1 1 0 0 0-.714 1.7.75.75 0 1 1-1.072 1.05A2.495 2.495 0 0 1 2 11.5Zm10.5-1h-8a1 1 0 0 0-1 1v6.708A2.486 2.486 0 0 1 4.5 9h8ZM5 12.25a.25.25 0 0 1 .25-.25h3.5a.25.25 0 0 1 .25.25v3.25a.25.25 0 0 1-.4.2l-1.45-1.087a.249.249 0 0 0-.3 0L5.4 15.7a.25.25 0 0 1-.4-.2Z"></path> </svg> </template> <template id="bookmark-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-bookmark"> <path d="M3 2.75C3 1.784 3.784 1 4.75 1h6.5c.966 0 1.75.784 1.75 1.75v11.5a.75.75 0 0 1-1.227.579L8 11.722l-3.773 3.107A.751.751 0 0 1 3 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v9.91l3.023-2.489a.75.75 0 0 1 .954 0l3.023 2.49V2.75a.25.25 0 0 0-.25-.25Z"></path> </svg> </template> <template id="plus-circle-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-plus-circle"> <path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Zm7.25-3.25v2.5h2.5a.75.75 0 0 1 0 1.5h-2.5v2.5a.75.75 0 0 1-1.5 0v-2.5h-2.5a.75.75 0 0 1 0-1.5h2.5v-2.5a.75.75 0 0 1 1.5 0Z"></path> </svg> </template> <template id="circle-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-dot-fill"> <path d="M8 4a4 4 0 1 1 0 8 4 4 0 0 1 0-8Z"></path> </svg> </template> <template id="trash-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-trash"> <path d="M11 1.75V3h2.25a.75.75 0 0 1 0 1.5H2.75a.75.75 0 0 1 0-1.5H5V1.75C5 .784 5.784 0 6.75 0h2.5C10.216 0 11 .784 11 1.75ZM4.496 6.675l.66 6.6a.25.25 0 0 0 .249.225h5.19a.25.25 0 0 0 .249-.225l.66-6.6a.75.75 0 0 1 1.492.149l-.66 6.6A1.748 1.748 0 0 1 10.595 15h-5.19a1.75 1.75 0 0 1-1.741-1.575l-.66-6.6a.75.75 0 1 1 1.492-.15ZM6.5 1.75V3h3V1.75a.25.25 0 0 0-.25-.25h-2.5a.25.25 0 0 0-.25.25Z"></path> </svg> </template> <template id="team-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-people"> <path d="M2 5.5a3.5 3.5 0 1 1 5.898 2.549 5.508 5.508 0 0 1 3.034 4.084.75.75 0 1 1-1.482.235 4 4 0 0 0-7.9 0 .75.75 0 0 1-1.482-.236A5.507 5.507 0 0 1 3.102 8.05 3.493 3.493 0 0 1 2 5.5ZM11 4a3.001 3.001 0 0 1 2.22 5.018 5.01 5.01 0 0 1 2.56 3.012.749.749 0 0 1-.885.954.752.752 0 0 1-.549-.514 3.507 3.507 0 0 0-2.522-2.372.75.75 0 0 1-.574-.73v-.352a.75.75 0 0 1 .416-.672A1.5 1.5 0 0 0 11 5.5.75.75 0 0 1 11 4Zm-5.5-.5a2 2 0 1 0-.001 3.999A2 2 0 0 0 5.5 3.5Z"></path> </svg> </template> <template id="project-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-project"> <path d="M1.75 0h12.5C15.216 0 16 .784 16 1.75v12.5A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25V1.75C0 .784.784 0 1.75 0ZM1.5 1.75v12.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25V1.75a.25.25 0 0 0-.25-.25H1.75a.25.25 0 0 0-.25.25ZM11.75 3a.75.75 0 0 1 .75.75v7.5a.75.75 0 0 1-1.5 0v-7.5a.75.75 0 0 1 .75-.75Zm-8.25.75a.75.75 0 0 1 1.5 0v5.5a.75.75 0 0 1-1.5 0ZM8 3a.75.75 0 0 1 .75.75v3.5a.75.75 0 0 1-1.5 0v-3.5A.75.75 0 0 1 8 3Z"></path> </svg> </template> <template id="pencil-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-pencil"> <path d="M11.013 1.427a1.75 1.75 0 0 1 2.474 0l1.086 1.086a1.75 1.75 0 0 1 0 2.474l-8.61 8.61c-.21.21-.47.364-.756.445l-3.251.93a.75.75 0 0 1-.927-.928l.929-3.25c.081-.286.235-.547.445-.758l8.61-8.61Zm.176 4.823L9.75 4.81l-6.286 6.287a.253.253 0 0 0-.064.108l-.558 1.953 1.953-.558a.253.253 0 0 0 .108-.064Zm1.238-3.763a.25.25 0 0 0-.354 0L10.811 3.75l1.439 1.44 1.263-1.263a.25.25 0 0 0 0-.354Z"></path> </svg> </template> <template id="copilot-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copilot"> <path d="M7.998 15.035c-4.562 0-7.873-2.914-7.998-3.749V9.338c.085-.628.677-1.686 1.588-2.065.013-.07.024-.143.036-.218.029-.183.06-.384.126-.612-.201-.508-.254-1.084-.254-1.656 0-.87.128-1.769.693-2.484.579-.733 1.494-1.124 2.724-1.261 1.206-.134 2.262.034 2.944.765.05.053.096.108.139.165.044-.057.094-.112.143-.165.682-.731 1.738-.899 2.944-.765 1.23.137 2.145.528 2.724 1.261.566.715.693 1.614.693 2.484 0 .572-.053 1.148-.254 1.656.066.228.098.429.126.612.012.076.024.148.037.218.924.385 1.522 1.471 1.591 2.095v1.872c0 .766-3.351 3.795-8.002 3.795Zm0-1.485c2.28 0 4.584-1.11 5.002-1.433V7.862l-.023-.116c-.49.21-1.075.291-1.727.291-1.146 0-2.059-.327-2.71-.991A3.222 3.222 0 0 1 8 6.303a3.24 3.24 0 0 1-.544.743c-.65.664-1.563.991-2.71.991-.652 0-1.236-.081-1.727-.291l-.023.116v4.255c.419.323 2.722 1.433 5.002 1.433ZM6.762 2.83c-.193-.206-.637-.413-1.682-.297-1.019.113-1.479.404-1.713.7-.247.312-.369.789-.369 1.554 0 .793.129 1.171.308 1.371.162.181.519.379 1.442.379.853 0 1.339-.235 1.638-.54.315-.322.527-.827.617-1.553.117-.935-.037-1.395-.241-1.614Zm4.155-.297c-1.044-.116-1.488.091-1.681.297-.204.219-.359.679-.242 1.614.091.726.303 1.231.618 1.553.299.305.784.54 1.638.54.922 0 1.28-.198 1.442-.379.179-.2.308-.578.308-1.371 0-.765-.123-1.242-.37-1.554-.233-.296-.693-.587-1.713-.7Z"></path><path d="M6.25 9.037a.75.75 0 0 1 .75.75v1.501a.75.75 0 0 1-1.5 0V9.787a.75.75 0 0 1 .75-.75Zm4.25.75v1.501a.75.75 0 0 1-1.5 0V9.787a.75.75 0 0 1 1.5 0Z"></path> </svg> </template> <template id="copilot-error-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copilot-error"> <path d="M16 11.24c0 .112-.072.274-.21.467L13 9.688V7.862l-.023-.116c-.49.21-1.075.291-1.727.291-.198 0-.388-.009-.571-.029L6.833 5.226a4.01 4.01 0 0 0 .17-.782c.117-.935-.037-1.395-.241-1.614-.193-.206-.637-.413-1.682-.297-.683.076-1.115.231-1.395.415l-1.257-.91c.579-.564 1.413-.877 2.485-.996 1.206-.134 2.262.034 2.944.765.05.053.096.108.139.165.044-.057.094-.112.143-.165.682-.731 1.738-.899 2.944-.765 1.23.137 2.145.528 2.724 1.261.566.715.693 1.614.693 2.484 0 .572-.053 1.148-.254 1.656.066.228.098.429.126.612.012.076.024.148.037.218.924.385 1.522 1.471 1.591 2.095Zm-5.083-8.707c-1.044-.116-1.488.091-1.681.297-.204.219-.359.679-.242 1.614.091.726.303 1.231.618 1.553.299.305.784.54 1.638.54.922 0 1.28-.198 1.442-.379.179-.2.308-.578.308-1.371 0-.765-.123-1.242-.37-1.554-.233-.296-.693-.587-1.713-.7Zm2.511 11.074c-1.393.776-3.272 1.428-5.43 1.428-4.562 0-7.873-2.914-7.998-3.749V9.338c.085-.628.677-1.686 1.588-2.065.013-.07.024-.143.036-.218.029-.183.06-.384.126-.612-.18-.455-.241-.963-.252-1.475L.31 4.107A.747.747 0 0 1 0 3.509V3.49a.748.748 0 0 1 .625-.73c.156-.026.306.047.435.139l14.667 10.578a.592.592 0 0 1 .227.264.752.752 0 0 1 .046.249v.022a.75.75 0 0 1-1.19.596Zm-1.367-.991L5.635 7.964a5.128 5.128 0 0 1-.889.073c-.652 0-1.236-.081-1.727-.291l-.023.116v4.255c.419.323 2.722 1.433 5.002 1.433 1.539 0 3.089-.505 4.063-.934Z"></path> </svg> </template> <template id="workflow-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-workflow"> <path d="M0 1.75C0 .784.784 0 1.75 0h3.5C6.216 0 7 .784 7 1.75v3.5A1.75 1.75 0 0 1 5.25 7H4v4a1 1 0 0 0 1 1h4v-1.25C9 9.784 9.784 9 10.75 9h3.5c.966 0 1.75.784 1.75 1.75v3.5A1.75 1.75 0 0 1 14.25 16h-3.5A1.75 1.75 0 0 1 9 14.25v-.75H5A2.5 2.5 0 0 1 2.5 11V7h-.75A1.75 1.75 0 0 1 0 5.25Zm1.75-.25a.25.25 0 0 0-.25.25v3.5c0 .138.112.25.25.25h3.5a.25.25 0 0 0 .25-.25v-3.5a.25.25 0 0 0-.25-.25Zm9 9a.25.25 0 0 0-.25.25v3.5c0 .138.112.25.25.25h3.5a.25.25 0 0 0 .25-.25v-3.5a.25.25 0 0 0-.25-.25Z"></path> </svg> </template> <template id="book-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-book"> <path d="M0 1.75A.75.75 0 0 1 .75 1h4.253c1.227 0 2.317.59 3 1.501A3.743 3.743 0 0 1 11.006 1h4.245a.75.75 0 0 1 .75.75v10.5a.75.75 0 0 1-.75.75h-4.507a2.25 2.25 0 0 0-1.591.659l-.622.621a.75.75 0 0 1-1.06 0l-.622-.621A2.25 2.25 0 0 0 5.258 13H.75a.75.75 0 0 1-.75-.75Zm7.251 10.324.004-5.073-.002-2.253A2.25 2.25 0 0 0 5.003 2.5H1.5v9h3.757a3.75 3.75 0 0 1 1.994.574ZM8.755 4.75l-.004 7.322a3.752 3.752 0 0 1 1.992-.572H14.5v-9h-3.495a2.25 2.25 0 0 0-2.25 2.25Z"></path> </svg> </template> <template id="code-review-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code-review"> <path d="M1.75 1h12.5c.966 0 1.75.784 1.75 1.75v8.5A1.75 1.75 0 0 1 14.25 13H8.061l-2.574 2.573A1.458 1.458 0 0 1 3 14.543V13H1.75A1.75 1.75 0 0 1 0 11.25v-8.5C0 1.784.784 1 1.75 1ZM1.5 2.75v8.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h6.5a.25.25 0 0 0 .25-.25v-8.5a.25.25 0 0 0-.25-.25H1.75a.25.25 0 0 0-.25.25Zm5.28 1.72a.75.75 0 0 1 0 1.06L5.31 7l1.47 1.47a.751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018l-2-2a.75.75 0 0 1 0-1.06l2-2a.75.75 0 0 1 1.06 0Zm2.44 0a.75.75 0 0 1 1.06 0l2 2a.75.75 0 0 1 0 1.06l-2 2a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L10.69 7 9.22 5.53a.75.75 0 0 1 0-1.06Z"></path> </svg> </template> <template id="codespaces-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-codespaces"> <path d="M0 11.25c0-.966.784-1.75 1.75-1.75h12.5c.966 0 1.75.784 1.75 1.75v3A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25Zm2-9.5C2 .784 2.784 0 3.75 0h8.5C13.216 0 14 .784 14 1.75v5a1.75 1.75 0 0 1-1.75 1.75h-8.5A1.75 1.75 0 0 1 2 6.75Zm1.75-.25a.25.25 0 0 0-.25.25v5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-5a.25.25 0 0 0-.25-.25Zm-2 9.5a.25.25 0 0 0-.25.25v3c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-3a.25.25 0 0 0-.25-.25Z"></path><path d="M7 12.75a.75.75 0 0 1 .75-.75h4.5a.75.75 0 0 1 0 1.5h-4.5a.75.75 0 0 1-.75-.75Zm-4 0a.75.75 0 0 1 .75-.75h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1-.75-.75Z"></path> </svg> </template> <template id="comment-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-comment"> <path d="M1 2.75C1 1.784 1.784 1 2.75 1h10.5c.966 0 1.75.784 1.75 1.75v7.5A1.75 1.75 0 0 1 13.25 12H9.06l-2.573 2.573A1.458 1.458 0 0 1 4 13.543V12H2.75A1.75 1.75 0 0 1 1 10.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h4.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path> </svg> </template> <template id="comment-discussion-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-comment-discussion"> <path d="M1.75 1h8.5c.966 0 1.75.784 1.75 1.75v5.5A1.75 1.75 0 0 1 10.25 10H7.061l-2.574 2.573A1.458 1.458 0 0 1 2 11.543V10h-.25A1.75 1.75 0 0 1 0 8.25v-5.5C0 1.784.784 1 1.75 1ZM1.5 2.75v5.5c0 .138.112.25.25.25h1a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h3.5a.25.25 0 0 0 .25-.25v-5.5a.25.25 0 0 0-.25-.25h-8.5a.25.25 0 0 0-.25.25Zm13 2a.25.25 0 0 0-.25-.25h-.5a.75.75 0 0 1 0-1.5h.5c.966 0 1.75.784 1.75 1.75v5.5A1.75 1.75 0 0 1 14.25 12H14v1.543a1.458 1.458 0 0 1-2.487 1.03L9.22 12.28a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215l2.22 2.22v-2.19a.75.75 0 0 1 .75-.75h1a.25.25 0 0 0 .25-.25Z"></path> </svg> </template> <template id="organization-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-organization"> <path d="M1.75 16A1.75 1.75 0 0 1 0 14.25V1.75C0 .784.784 0 1.75 0h8.5C11.216 0 12 .784 12 1.75v12.5c0 .085-.006.168-.018.25h2.268a.25.25 0 0 0 .25-.25V8.285a.25.25 0 0 0-.111-.208l-1.055-.703a.749.749 0 1 1 .832-1.248l1.055.703c.487.325.779.871.779 1.456v5.965A1.75 1.75 0 0 1 14.25 16h-3.5a.766.766 0 0 1-.197-.026c-.099.017-.2.026-.303.026h-3a.75.75 0 0 1-.75-.75V14h-1v1.25a.75.75 0 0 1-.75.75Zm-.25-1.75c0 .138.112.25.25.25H4v-1.25a.75.75 0 0 1 .75-.75h2.5a.75.75 0 0 1 .75.75v1.25h2.25a.25.25 0 0 0 .25-.25V1.75a.25.25 0 0 0-.25-.25h-8.5a.25.25 0 0 0-.25.25ZM3.75 6h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1 0-1.5ZM3 3.75A.75.75 0 0 1 3.75 3h.5a.75.75 0 0 1 0 1.5h-.5A.75.75 0 0 1 3 3.75Zm4 3A.75.75 0 0 1 7.75 6h.5a.75.75 0 0 1 0 1.5h-.5A.75.75 0 0 1 7 6.75ZM7.75 3h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1 0-1.5ZM3 9.75A.75.75 0 0 1 3.75 9h.5a.75.75 0 0 1 0 1.5h-.5A.75.75 0 0 1 3 9.75ZM7.75 9h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1 0-1.5Z"></path> </svg> </template> <template id="rocket-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-rocket"> <path d="M14.064 0h.186C15.216 0 16 .784 16 1.75v.186a8.752 8.752 0 0 1-2.564 6.186l-.458.459c-.314.314-.641.616-.979.904v3.207c0 .608-.315 1.172-.833 1.49l-2.774 1.707a.749.749 0 0 1-1.11-.418l-.954-3.102a1.214 1.214 0 0 1-.145-.125L3.754 9.816a1.218 1.218 0 0 1-.124-.145L.528 8.717a.749.749 0 0 1-.418-1.11l1.71-2.774A1.748 1.748 0 0 1 3.31 4h3.204c.288-.338.59-.665.904-.979l.459-.458A8.749 8.749 0 0 1 14.064 0ZM8.938 3.623h-.002l-.458.458c-.76.76-1.437 1.598-2.02 2.5l-1.5 2.317 2.143 2.143 2.317-1.5c.902-.583 1.74-1.26 2.499-2.02l.459-.458a7.25 7.25 0 0 0 2.123-5.127V1.75a.25.25 0 0 0-.25-.25h-.186a7.249 7.249 0 0 0-5.125 2.123ZM3.56 14.56c-.732.732-2.334 1.045-3.005 1.148a.234.234 0 0 1-.201-.064.234.234 0 0 1-.064-.201c.103-.671.416-2.273 1.15-3.003a1.502 1.502 0 1 1 2.12 2.12Zm6.94-3.935c-.088.06-.177.118-.266.175l-2.35 1.521.548 1.783 1.949-1.2a.25.25 0 0 0 .119-.213ZM3.678 8.116 5.2 5.766c.058-.09.117-.178.176-.266H3.309a.25.25 0 0 0-.213.119l-1.2 1.95ZM12 5a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path> </svg> </template> <template id="shield-check-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-shield-check"> <path d="m8.533.133 5.25 1.68A1.75 1.75 0 0 1 15 3.48V7c0 1.566-.32 3.182-1.303 4.682-.983 1.498-2.585 2.813-5.032 3.855a1.697 1.697 0 0 1-1.33 0c-2.447-1.042-4.049-2.357-5.032-3.855C1.32 10.182 1 8.566 1 7V3.48a1.75 1.75 0 0 1 1.217-1.667l5.25-1.68a1.748 1.748 0 0 1 1.066 0Zm-.61 1.429.001.001-5.25 1.68a.251.251 0 0 0-.174.237V7c0 1.36.275 2.666 1.057 3.859.784 1.194 2.121 2.342 4.366 3.298a.196.196 0 0 0 .154 0c2.245-.957 3.582-2.103 4.366-3.297C13.225 9.666 13.5 8.358 13.5 7V3.48a.25.25 0 0 0-.174-.238l-5.25-1.68a.25.25 0 0 0-.153 0ZM11.28 6.28l-3.5 3.5a.75.75 0 0 1-1.06 0l-1.5-1.5a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215l.97.97 2.97-2.97a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Z"></path> </svg> </template> <template id="heart-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-heart"> <path d="m8 14.25.345.666a.75.75 0 0 1-.69 0l-.008-.004-.018-.01a7.152 7.152 0 0 1-.31-.17 22.055 22.055 0 0 1-3.434-2.414C2.045 10.731 0 8.35 0 5.5 0 2.836 2.086 1 4.25 1 5.797 1 7.153 1.802 8 3.02 8.847 1.802 10.203 1 11.75 1 13.914 1 16 2.836 16 5.5c0 2.85-2.045 5.231-3.885 6.818a22.066 22.066 0 0 1-3.744 2.584l-.018.01-.006.003h-.002ZM4.25 2.5c-1.336 0-2.75 1.164-2.75 3 0 2.15 1.58 4.144 3.365 5.682A20.58 20.58 0 0 0 8 13.393a20.58 20.58 0 0 0 3.135-2.211C12.92 9.644 14.5 7.65 14.5 5.5c0-1.836-1.414-3-2.75-3-1.373 0-2.609.986-3.029 2.456a.749.749 0 0 1-1.442 0C6.859 3.486 5.623 2.5 4.25 2.5Z"></path> </svg> </template> <template id="server-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-server"> <path d="M1.75 1h12.5c.966 0 1.75.784 1.75 1.75v4c0 .372-.116.717-.314 1 .198.283.314.628.314 1v4a1.75 1.75 0 0 1-1.75 1.75H1.75A1.75 1.75 0 0 1 0 12.75v-4c0-.358.109-.707.314-1a1.739 1.739 0 0 1-.314-1v-4C0 1.784.784 1 1.75 1ZM1.5 2.75v4c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-4a.25.25 0 0 0-.25-.25H1.75a.25.25 0 0 0-.25.25Zm.25 5.75a.25.25 0 0 0-.25.25v4c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-4a.25.25 0 0 0-.25-.25ZM7 4.75A.75.75 0 0 1 7.75 4h4.5a.75.75 0 0 1 0 1.5h-4.5A.75.75 0 0 1 7 4.75ZM7.75 10h4.5a.75.75 0 0 1 0 1.5h-4.5a.75.75 0 0 1 0-1.5ZM3 4.75A.75.75 0 0 1 3.75 4h.5a.75.75 0 0 1 0 1.5h-.5A.75.75 0 0 1 3 4.75ZM3.75 10h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1 0-1.5Z"></path> </svg> </template> <template id="globe-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-globe"> <path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM5.78 8.75a9.64 9.64 0 0 0 1.363 4.177c.255.426.542.832.857 1.215.245-.296.551-.705.857-1.215A9.64 9.64 0 0 0 10.22 8.75Zm4.44-1.5a9.64 9.64 0 0 0-1.363-4.177c-.307-.51-.612-.919-.857-1.215a9.927 9.927 0 0 0-.857 1.215A9.64 9.64 0 0 0 5.78 7.25Zm-5.944 1.5H1.543a6.507 6.507 0 0 0 4.666 5.5c-.123-.181-.24-.365-.352-.552-.715-1.192-1.437-2.874-1.581-4.948Zm-2.733-1.5h2.733c.144-2.074.866-3.756 1.58-4.948.12-.197.237-.381.353-.552a6.507 6.507 0 0 0-4.666 5.5Zm10.181 1.5c-.144 2.074-.866 3.756-1.58 4.948-.12.197-.237.381-.353.552a6.507 6.507 0 0 0 4.666-5.5Zm2.733-1.5a6.507 6.507 0 0 0-4.666-5.5c.123.181.24.365.353.552.714 1.192 1.436 2.874 1.58 4.948Z"></path> </svg> </template> <template id="issue-opened-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-issue-opened"> <path d="M8 9.5a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path><path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Z"></path> </svg> </template> <template id="device-mobile-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-device-mobile"> <path d="M3.75 0h8.5C13.216 0 14 .784 14 1.75v12.5A1.75 1.75 0 0 1 12.25 16h-8.5A1.75 1.75 0 0 1 2 14.25V1.75C2 .784 2.784 0 3.75 0ZM3.5 1.75v12.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25V1.75a.25.25 0 0 0-.25-.25h-8.5a.25.25 0 0 0-.25.25ZM8 13a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z"></path> </svg> </template> <template id="package-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-package"> <path d="m8.878.392 5.25 3.045c.54.314.872.89.872 1.514v6.098a1.75 1.75 0 0 1-.872 1.514l-5.25 3.045a1.75 1.75 0 0 1-1.756 0l-5.25-3.045A1.75 1.75 0 0 1 1 11.049V4.951c0-.624.332-1.201.872-1.514L7.122.392a1.75 1.75 0 0 1 1.756 0ZM7.875 1.69l-4.63 2.685L8 7.133l4.755-2.758-4.63-2.685a.248.248 0 0 0-.25 0ZM2.5 5.677v5.372c0 .09.047.171.125.216l4.625 2.683V8.432Zm6.25 8.271 4.625-2.683a.25.25 0 0 0 .125-.216V5.677L8.75 8.432Z"></path> </svg> </template> <template id="credit-card-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-credit-card"> <path d="M10.75 9a.75.75 0 0 0 0 1.5h1.5a.75.75 0 0 0 0-1.5h-1.5Z"></path><path d="M0 3.75C0 2.784.784 2 1.75 2h12.5c.966 0 1.75.784 1.75 1.75v8.5A1.75 1.75 0 0 1 14.25 14H1.75A1.75 1.75 0 0 1 0 12.25ZM14.5 6.5h-13v5.75c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25Zm0-2.75a.25.25 0 0 0-.25-.25H1.75a.25.25 0 0 0-.25.25V5h13Z"></path> </svg> </template> <template id="play-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-play"> <path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Zm4.879-2.773 4.264 2.559a.25.25 0 0 1 0 .428l-4.264 2.559A.25.25 0 0 1 6 10.559V5.442a.25.25 0 0 1 .379-.215Z"></path> </svg> </template> <template id="gift-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-gift"> <path d="M2 2.75A2.75 2.75 0 0 1 4.75 0c.983 0 1.873.42 2.57 1.232.268.318.497.668.68 1.042.183-.375.411-.725.68-1.044C9.376.42 10.266 0 11.25 0a2.75 2.75 0 0 1 2.45 4h.55c.966 0 1.75.784 1.75 1.75v2c0 .698-.409 1.301-1 1.582v4.918A1.75 1.75 0 0 1 13.25 16H2.75A1.75 1.75 0 0 1 1 14.25V9.332C.409 9.05 0 8.448 0 7.75v-2C0 4.784.784 4 1.75 4h.55c-.192-.375-.3-.8-.3-1.25ZM7.25 9.5H2.5v4.75c0 .138.112.25.25.25h4.5Zm1.5 0v5h4.5a.25.25 0 0 0 .25-.25V9.5Zm0-4V8h5.5a.25.25 0 0 0 .25-.25v-2a.25.25 0 0 0-.25-.25Zm-7 0a.25.25 0 0 0-.25.25v2c0 .138.112.25.25.25h5.5V5.5h-5.5Zm3-4a1.25 1.25 0 0 0 0 2.5h2.309c-.233-.818-.542-1.401-.878-1.793-.43-.502-.915-.707-1.431-.707ZM8.941 4h2.309a1.25 1.25 0 0 0 0-2.5c-.516 0-1 .205-1.43.707-.337.392-.646.975-.879 1.793Z"></path> </svg> </template> <template id="code-square-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code-square"> <path d="M0 1.75C0 .784.784 0 1.75 0h12.5C15.216 0 16 .784 16 1.75v12.5A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25V1.75a.25.25 0 0 0-.25-.25Zm7.47 3.97a.75.75 0 0 1 1.06 0l2 2a.75.75 0 0 1 0 1.06l-2 2a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L10.69 8 9.22 6.53a.75.75 0 0 1 0-1.06ZM6.78 6.53 5.31 8l1.47 1.47a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215l-2-2a.75.75 0 0 1 0-1.06l2-2a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Z"></path> </svg> </template> <template id="device-desktop-icon"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-device-desktop"> <path d="M14.25 1c.966 0 1.75.784 1.75 1.75v7.5A1.75 1.75 0 0 1 14.25 12h-3.727c.099 1.041.52 1.872 1.292 2.757A.752.752 0 0 1 11.25 16h-6.5a.75.75 0 0 1-.565-1.243c.772-.885 1.192-1.716 1.292-2.757H1.75A1.75 1.75 0 0 1 0 10.25v-7.5C0 1.784.784 1 1.75 1ZM1.75 2.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25ZM9.018 12H6.982a5.72 5.72 0 0 1-.765 2.5h3.566a5.72 5.72 0 0 1-.765-2.5Z"></path> </svg> </template> <div class="position-relative"> <ul role="listbox" class="ActionListWrap QueryBuilder-ListWrap" aria-label="Suggestions" data-action=" combobox-commit:query-builder#comboboxCommit mousedown:query-builder#resultsMousedown " data-target="query-builder.resultsList" data-persist-list=false id="query-builder-test-results" ></ul> </div> <div class="FormControl-inlineValidation" id="validation-8ce75341-3993-4470-b9fb-f9daa6a0f2c4" hidden="hidden"> <span class="FormControl-inlineValidation--visual"> <svg aria-hidden="true" height="12" viewBox="0 0 12 12" version="1.1" width="12" data-view-component="true" class="octicon octicon-alert-fill"> <path d="M4.855.708c.5-.896 1.79-.896 2.29 0l4.675 8.351a1.312 1.312 0 0 1-1.146 1.954H1.33A1.313 1.313 0 0 1 .183 9.058ZM7 7V3H5v4Zm-1 3a1 1 0 1 0 0-2 1 1 0 0 0 0 2Z"></path> </svg> </span> <span></span> </div> </div> <div data-target="query-builder.screenReaderFeedback" aria-live="polite" aria-atomic="true" class="sr-only"></div> </query-builder></form> <div class="d-flex flex-row color-fg-muted px-3 text-small color-bg-default search-feedback-prompt"> <a target="_blank" href="https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax" data-view-component="true" class="Link color-fg-accent text-normal ml-2">Search syntax tips</a> <div class="d-flex flex-1"></div> </div> </div> </div> </div> </modal-dialog></div> </div> <div data-action="click:qbsearch-input#retract" class="dark-backdrop position-fixed" hidden data-target="qbsearch-input.darkBackdrop"></div> <div class="color-fg-default"> <dialog-helper> <dialog data-target="qbsearch-input.feedbackDialog" data-action="close:qbsearch-input#handleDialogClose cancel:qbsearch-input#handleDialogClose" id="feedback-dialog" aria-modal="true" aria-labelledby="feedback-dialog-title" aria-describedby="feedback-dialog-description" data-view-component="true" class="Overlay Overlay-whenNarrow Overlay--size-medium Overlay--motion-scaleFade Overlay--disableScroll"> <div data-view-component="true" class="Overlay-header"> <div class="Overlay-headerContentWrap"> <div class="Overlay-titleWrap"> <h1 class="Overlay-title " id="feedback-dialog-title"> Provide feedback </h1> </div> <div class="Overlay-actionWrap"> <button data-close-dialog-id="feedback-dialog" aria-label="Close" type="button" data-view-component="true" class="close-button Overlay-closeButton"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg></button> </div> </div> </div> <scrollable-region data-labelled-by="feedback-dialog-title"> <div data-view-component="true" class="Overlay-body"> </option></form><form id="code-search-feedback-form" data-turbo="false" action="/search/feedback" accept-charset="UTF-8" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" value="/6RAIwHxUsxYxBY0sxwyVMsDUHpX3u4MUb2DOrJBCOksM1l8RnHWYbWYDWWXjJS6eqe8QpWxzPBblzk6/DVYDw==" /> <p>We read every piece of feedback, and take your input very seriously.</p> <textarea name="feedback" class="form-control width-full mb-2" style="height: 120px" id="feedback"></textarea> <input name="include_email" id="include_email" aria-label="Include my email address so I can be contacted" class="form-control mr-2" type="checkbox"> <label for="include_email" style="font-weight: normal">Include my email address so I can be contacted</label> </form></div> </scrollable-region> <div data-view-component="true" class="Overlay-footer Overlay-footer--alignEnd"> <button data-close-dialog-id="feedback-dialog" type="button" data-view-component="true" class="btn"> Cancel </button> <button form="code-search-feedback-form" data-action="click:qbsearch-input#submitFeedback" type="submit" data-view-component="true" class="btn-primary btn"> Submit feedback </button> </div> </dialog></dialog-helper> <custom-scopes data-target="qbsearch-input.customScopesManager"> <dialog-helper> <dialog data-target="custom-scopes.customScopesModalDialog" data-action="close:qbsearch-input#handleDialogClose cancel:qbsearch-input#handleDialogClose" id="custom-scopes-dialog" aria-modal="true" aria-labelledby="custom-scopes-dialog-title" aria-describedby="custom-scopes-dialog-description" data-view-component="true" class="Overlay Overlay-whenNarrow Overlay--size-medium Overlay--motion-scaleFade Overlay--disableScroll"> <div data-view-component="true" class="Overlay-header Overlay-header--divided"> <div class="Overlay-headerContentWrap"> <div class="Overlay-titleWrap"> <h1 class="Overlay-title " id="custom-scopes-dialog-title"> Saved searches </h1> <h2 id="custom-scopes-dialog-description" class="Overlay-description">Use saved searches to filter your results more quickly</h2> </div> <div class="Overlay-actionWrap"> <button data-close-dialog-id="custom-scopes-dialog" aria-label="Close" type="button" data-view-component="true" class="close-button Overlay-closeButton"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg></button> </div> </div> </div> <scrollable-region data-labelled-by="custom-scopes-dialog-title"> <div data-view-component="true" class="Overlay-body"> <div data-target="custom-scopes.customScopesModalDialogFlash"></div> <div hidden class="create-custom-scope-form" data-target="custom-scopes.createCustomScopeForm"> </option></form><form id="custom-scopes-dialog-form" data-turbo="false" action="/search/custom_scopes" accept-charset="UTF-8" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" value="CtWbckT27Di7blSssKbvYZtU86PtyzbiZ/O3MLyMwyFgBEEhN+VGWLGqhl0sdEFXh9uewpgMsAWdCVcz160QIQ==" /> <div data-target="custom-scopes.customScopesModalDialogFlash"></div> <input type="hidden" id="custom_scope_id" name="custom_scope_id" data-target="custom-scopes.customScopesIdField"> <div class="form-group"> <label for="custom_scope_name">Name</label> <auto-check src="/search/custom_scopes/check_name" required only-validate-on-blur="false"> <input type="text" name="custom_scope_name" id="custom_scope_name" data-target="custom-scopes.customScopesNameField" class="form-control" autocomplete="off" placeholder="github-ruby" required maxlength="50"> <input type="hidden" data-csrf="true" value="FNKsGcFOwpFrGKkopmFF9u4GPLooE9rNzQBvY041oQjTLDYx3NNnbFpuKawA6azzlGFc6UPhUJY5z/jLU1uZZw==" /> </auto-check> </div> <div class="form-group"> <label for="custom_scope_query">Query</label> <input type="text" name="custom_scope_query" id="custom_scope_query" data-target="custom-scopes.customScopesQueryField" class="form-control" autocomplete="off" placeholder="(repo:mona/a OR repo:mona/b) AND lang:python" required maxlength="500"> </div> <p class="text-small color-fg-muted"> To see all available qualifiers, see our <a class="Link--inTextBlock" href="https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax">documentation</a>. </p> </form> </div> <div data-target="custom-scopes.manageCustomScopesForm"> <div data-target="custom-scopes.list"></div> </div> </div> </scrollable-region> <div data-view-component="true" class="Overlay-footer Overlay-footer--alignEnd Overlay-footer--divided"> <button data-action="click:custom-scopes#customScopesCancel" type="button" data-view-component="true" class="btn"> Cancel </button> <button form="custom-scopes-dialog-form" data-action="click:custom-scopes#customScopesSubmit" data-target="custom-scopes.customScopesSubmitButton" type="submit" data-view-component="true" class="btn-primary btn"> Create saved search </button> </div> </dialog></dialog-helper> </custom-scopes> </div> </qbsearch-input> <div class="position-relative HeaderMenu-link-wrap d-lg-inline-block"> <a href="/login?return_to=https%3A%2F%2Fgithub.com%2Fterser%2Fterser" class="HeaderMenu-link HeaderMenu-link--sign-in HeaderMenu-button flex-shrink-0 no-underline d-none d-lg-inline-flex border border-lg-0 rounded rounded-lg-0 px-2 py-1" style="margin-left: 12px;" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"site header menu","repository_id":null,"auth_type":"SIGN_UP","originating_url":"https://github.com/terser/terser","user_id":null}}" data-hydro-click-hmac="bc400fd246b220e4db49fa6d63e48ad181e17658c440b31dfbc157ccc3da3525" data-analytics-event="{"category":"Marketing nav","action":"click to go to homepage","label":"ref_page:Marketing;ref_cta:Sign in;ref_loc:Header"}" > Sign in </a> </div> <a href="/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E&source=header-repo&source_repo=terser%2Fterser" class="HeaderMenu-link HeaderMenu-link--sign-up HeaderMenu-button flex-shrink-0 d-flex d-lg-inline-flex no-underline border color-border-default rounded px-2 py-1" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"site header menu","repository_id":null,"auth_type":"SIGN_UP","originating_url":"https://github.com/terser/terser","user_id":null}}" data-hydro-click-hmac="bc400fd246b220e4db49fa6d63e48ad181e17658c440b31dfbc157ccc3da3525" data-analytics-event="{"category":"Sign up","action":"click to sign up for account","label":"ref_page:/<user-name>/<repo-name>;ref_cta:Sign up;ref_loc:header logged out"}" > Sign up </a> <button type="button" class="sr-only js-header-menu-focus-trap d-block d-lg-none">Reseting focus</button> </div> </div> </div> </div> </header> <div hidden="hidden" data-view-component="true" class="js-stale-session-flash stale-session-flash flash flash-warn flash-full"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-alert"> <path d="M6.457 1.047c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0 1 14.082 15H1.918a1.75 1.75 0 0 1-1.543-2.575Zm1.763.707a.25.25 0 0 0-.44 0L1.698 13.132a.25.25 0 0 0 .22.368h12.164a.25.25 0 0 0 .22-.368Zm.53 3.996v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 11a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path> </svg> <span class="js-stale-session-flash-signed-in" hidden>You signed in with another tab or window. <a class="Link--inTextBlock" href="">Reload</a> to refresh your session.</span> <span class="js-stale-session-flash-signed-out" hidden>You signed out in another tab or window. <a class="Link--inTextBlock" href="">Reload</a> to refresh your session.</span> <span class="js-stale-session-flash-switched" hidden>You switched accounts on another tab or window. <a class="Link--inTextBlock" href="">Reload</a> to refresh your session.</span> <button id="icon-button-216ff901-157f-438d-a6c8-39c290610198" aria-labelledby="tooltip-adb0f0f3-44e6-46ce-8bc2-08ed9a9c8d4e" type="button" data-view-component="true" class="Button Button--iconOnly Button--invisible Button--medium flash-close js-flash-close"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x Button-visual"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg> </button><tool-tip id="tooltip-adb0f0f3-44e6-46ce-8bc2-08ed9a9c8d4e" for="icon-button-216ff901-157f-438d-a6c8-39c290610198" popover="manual" data-direction="s" data-type="label" data-view-component="true" class="sr-only position-absolute">Dismiss alert</tool-tip> </div> </div> <div id="start-of-content" class="show-on-focus"></div> <div id="js-flash-container" class="flash-container" data-turbo-replace> <template class="js-flash-template"> <div class="flash flash-full {{ className }}"> <div > <button autofocus class="flash-close js-flash-close" type="button" aria-label="Dismiss this message"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg> </button> <div aria-atomic="true" role="alert" class="js-flash-alert"> <div>{{ message }}</div> </div> </div> </div> </template> </div> <div class="application-main " data-commit-hovercards-enabled data-discussion-hovercards-enabled data-issue-and-pr-hovercards-enabled data-project-hovercards-enabled > <div itemscope itemtype="http://schema.org/SoftwareSourceCode" class=""> <main id="js-repo-pjax-container" > <div id="repository-container-header" class="pt-3 hide-full-screen" style="background-color: var(--page-header-bgColor, var(--color-page-header-bg));" data-turbo-replace> <div class="d-flex flex-nowrap flex-justify-end mb-3 px-3 px-lg-5" style="gap: 1rem;"> <div class="flex-auto min-width-0 width-fit"> <div class=" d-flex flex-wrap flex-items-center wb-break-word f3 text-normal"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo color-fg-muted mr-2"> <path d="M2 2.5A2.5 2.5 0 0 1 4.5 0h8.75a.75.75 0 0 1 .75.75v12.5a.75.75 0 0 1-.75.75h-2.5a.75.75 0 0 1 0-1.5h1.75v-2h-8a1 1 0 0 0-.714 1.7.75.75 0 1 1-1.072 1.05A2.495 2.495 0 0 1 2 11.5Zm10.5-1h-8a1 1 0 0 0-1 1v6.708A2.486 2.486 0 0 1 4.5 9h8ZM5 12.25a.25.25 0 0 1 .25-.25h3.5a.25.25 0 0 1 .25.25v3.25a.25.25 0 0 1-.4.2l-1.45-1.087a.249.249 0 0 0-.3 0L5.4 15.7a.25.25 0 0 1-.4-.2Z"></path> </svg> <span class="author flex-self-stretch" itemprop="author"> <a class="url fn" rel="author" data-hovercard-type="organization" data-hovercard-url="/orgs/terser/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/terser"> terser </a> </span> <span class="mx-1 flex-self-stretch color-fg-muted">/</span> <strong itemprop="name" class="mr-2 flex-self-stretch"> <a data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/terser/terser">terser</a> </strong> <span></span><span class="Label Label--secondary v-align-middle mr-1">Public</span> </div> </div> <div id="repository-details-container" class="flex-shrink-0" data-turbo-replace style="max-width: 70%;"> <ul class="pagehead-actions flex-shrink-0 d-none d-md-inline" style="padding: 2px 0;"> <li> <include-fragment src="/terser/terser/sponsor_button"></include-fragment> </li> <li> <a href="/login?return_to=%2Fterser%2Fterser" rel="nofollow" id="repository-details-watch-button" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"notification subscription menu watch","repository_id":null,"auth_type":"LOG_IN","originating_url":"https://github.com/terser/terser","user_id":null}}" data-hydro-click-hmac="313ccd8b4f82fc83878942f55c8884e332eca2eff1452099408421d6d5b312cf" aria-label="You must be signed in to change notification settings" data-view-component="true" class="btn-sm btn"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-bell mr-2"> <path d="M8 16a2 2 0 0 0 1.985-1.75c.017-.137-.097-.25-.235-.25h-3.5c-.138 0-.252.113-.235.25A2 2 0 0 0 8 16ZM3 5a5 5 0 0 1 10 0v2.947c0 .05.015.098.042.139l1.703 2.555A1.519 1.519 0 0 1 13.482 13H2.518a1.516 1.516 0 0 1-1.263-2.36l1.703-2.554A.255.255 0 0 0 3 7.947Zm5-3.5A3.5 3.5 0 0 0 4.5 5v2.947c0 .346-.102.683-.294.97l-1.703 2.556a.017.017 0 0 0-.003.01l.001.006c0 .002.002.004.004.006l.006.004.007.001h10.964l.007-.001.006-.004.004-.006.001-.007a.017.017 0 0 0-.003-.01l-1.703-2.554a1.745 1.745 0 0 1-.294-.97V5A3.5 3.5 0 0 0 8 1.5Z"></path> </svg>Notifications </a> <tool-tip id="tooltip-d8c5d78d-31a3-425b-93aa-357554f10fdd" for="repository-details-watch-button" popover="manual" data-direction="s" data-type="description" data-view-component="true" class="sr-only position-absolute">You must be signed in to change notification settings</tool-tip> </li> <li> <a icon="repo-forked" id="fork-button" href="/login?return_to=%2Fterser%2Fterser" rel="nofollow" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"repo details fork button","repository_id":29097127,"auth_type":"LOG_IN","originating_url":"https://github.com/terser/terser","user_id":null}}" data-hydro-click-hmac="770e5ee21e5c1f03bd500189906b6c39a84ace9d3446e71e9e62acaded9a04c4" data-view-component="true" class="btn-sm btn"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo-forked mr-2"> <path d="M5 5.372v.878c0 .414.336.75.75.75h4.5a.75.75 0 0 0 .75-.75v-.878a2.25 2.25 0 1 1 1.5 0v.878a2.25 2.25 0 0 1-2.25 2.25h-1.5v2.128a2.251 2.251 0 1 1-1.5 0V8.5h-1.5A2.25 2.25 0 0 1 3.5 6.25v-.878a2.25 2.25 0 1 1 1.5 0ZM5 3.25a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Zm6.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5Zm-3 8.75a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Z"></path> </svg>Fork <span id="repo-network-counter" data-pjax-replace="true" data-turbo-replace="true" title="403" data-view-component="true" class="Counter">403</span> </a> </li> <li> <div data-view-component="true" class="BtnGroup d-flex"> <a href="/login?return_to=%2Fterser%2Fterser" rel="nofollow" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"star button","repository_id":29097127,"auth_type":"LOG_IN","originating_url":"https://github.com/terser/terser","user_id":null}}" data-hydro-click-hmac="763e2014e505e28d86e4969c403c856d9639efecdb155fd72869f569830d2bd1" aria-label="You must be signed in to star a repository" data-view-component="true" class="tooltipped tooltipped-sw btn-sm btn"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-star v-align-text-bottom d-inline-block mr-2"> <path d="M8 .25a.75.75 0 0 1 .673.418l1.882 3.815 4.21.612a.75.75 0 0 1 .416 1.279l-3.046 2.97.719 4.192a.751.751 0 0 1-1.088.791L8 12.347l-3.766 1.98a.75.75 0 0 1-1.088-.79l.72-4.194L.818 6.374a.75.75 0 0 1 .416-1.28l4.21-.611L7.327.668A.75.75 0 0 1 8 .25Zm0 2.445L6.615 5.5a.75.75 0 0 1-.564.41l-3.097.45 2.24 2.184a.75.75 0 0 1 .216.664l-.528 3.084 2.769-1.456a.75.75 0 0 1 .698 0l2.77 1.456-.53-3.084a.75.75 0 0 1 .216-.664l2.24-2.183-3.096-.45a.75.75 0 0 1-.564-.41L8 2.694Z"></path> </svg><span data-view-component="true" class="d-inline"> Star </span> <span id="repo-stars-counter-star" aria-label="8904 users starred this repository" data-singular-suffix="user starred this repository" data-plural-suffix="users starred this repository" data-turbo-replace="true" title="8,904" data-view-component="true" class="Counter js-social-count">8.9k</span> </a></div> </li> </ul> </div> </div> <div id="responsive-meta-container" data-turbo-replace> <div class="d-block d-md-none mb-2 px-3 px-md-4 px-lg-5"> <p class="f4 mb-3 "> 🗜 JavaScript parser, mangler and compressor toolkit for ES6+ </p> <div class="mb-2 d-flex flex-items-center Link--secondary"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link flex-shrink-0 mr-2"> <path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path> </svg> <span class="flex-auto min-width-0 css-truncate css-truncate-target width-fit"> <a title="https://terser.org" role="link" target="_blank" class="text-bold" rel="noopener noreferrer" href="https://terser.org">terser.org</a> </span> </div> <h3 class="sr-only">License</h3> <div class="mb-2"> <a href="/terser/terser/blob/master/LICENSE" class="Link--muted" data-analytics-event="{"category":"Repository Overview","action":"click","label":"location:sidebar;file:license"}" > <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-law mr-2"> <path d="M8.75.75V2h.985c.304 0 .603.08.867.231l1.29.736c.038.022.08.033.124.033h2.234a.75.75 0 0 1 0 1.5h-.427l2.111 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.006.005-.01.01-.045.04c-.21.176-.441.327-.686.45C14.556 10.78 13.88 11 13 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L12.178 4.5h-.162c-.305 0-.604-.079-.868-.231l-1.29-.736a.245.245 0 0 0-.124-.033H8.75V13h2.5a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1 0-1.5h2.5V3.5h-.984a.245.245 0 0 0-.124.033l-1.289.737c-.265.15-.564.23-.869.23h-.162l2.112 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.016.015-.045.04c-.21.176-.441.327-.686.45C4.556 10.78 3.88 11 3 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L2.178 4.5H1.75a.75.75 0 0 1 0-1.5h2.234a.249.249 0 0 0 .125-.033l1.288-.737c.265-.15.564-.23.869-.23h.984V.75a.75.75 0 0 1 1.5 0Zm2.945 8.477c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L13 6.327Zm-10 0c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L3 6.327Z"></path> </svg> View license </a> </div> <div class="mb-3"> <a class="Link--secondary no-underline mr-3" href="/terser/terser/stargazers"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-star mr-1"> <path d="M8 .25a.75.75 0 0 1 .673.418l1.882 3.815 4.21.612a.75.75 0 0 1 .416 1.279l-3.046 2.97.719 4.192a.751.751 0 0 1-1.088.791L8 12.347l-3.766 1.98a.75.75 0 0 1-1.088-.79l.72-4.194L.818 6.374a.75.75 0 0 1 .416-1.28l4.21-.611L7.327.668A.75.75 0 0 1 8 .25Zm0 2.445L6.615 5.5a.75.75 0 0 1-.564.41l-3.097.45 2.24 2.184a.75.75 0 0 1 .216.664l-.528 3.084 2.769-1.456a.75.75 0 0 1 .698 0l2.77 1.456-.53-3.084a.75.75 0 0 1 .216-.664l2.24-2.183-3.096-.45a.75.75 0 0 1-.564-.41L8 2.694Z"></path> </svg> <span class="text-bold">8.9k</span> stars </a> <a class="Link--secondary no-underline mr-3" href="/terser/terser/forks"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo-forked mr-1"> <path d="M5 5.372v.878c0 .414.336.75.75.75h4.5a.75.75 0 0 0 .75-.75v-.878a2.25 2.25 0 1 1 1.5 0v.878a2.25 2.25 0 0 1-2.25 2.25h-1.5v2.128a2.251 2.251 0 1 1-1.5 0V8.5h-1.5A2.25 2.25 0 0 1 3.5 6.25v-.878a2.25 2.25 0 1 1 1.5 0ZM5 3.25a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Zm6.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5Zm-3 8.75a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Z"></path> </svg> <span class="text-bold">403</span> forks </a> <a class="Link--secondary no-underline mr-3 d-inline-block" href="/terser/terser/branches"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-git-branch mr-1"> <path d="M9.5 3.25a2.25 2.25 0 1 1 3 2.122V6A2.5 2.5 0 0 1 10 8.5H6a1 1 0 0 0-1 1v1.128a2.251 2.251 0 1 1-1.5 0V5.372a2.25 2.25 0 1 1 1.5 0v1.836A2.493 2.493 0 0 1 6 7h4a1 1 0 0 0 1-1v-.628A2.25 2.25 0 0 1 9.5 3.25Zm-6 0a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Zm8.25-.75a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5ZM4.25 12a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Z"></path> </svg> <span>Branches</span> </a> <a class="Link--secondary no-underline d-inline-block" href="/terser/terser/tags"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-tag mr-1"> <path d="M1 7.775V2.75C1 1.784 1.784 1 2.75 1h5.025c.464 0 .91.184 1.238.513l6.25 6.25a1.75 1.75 0 0 1 0 2.474l-5.026 5.026a1.75 1.75 0 0 1-2.474 0l-6.25-6.25A1.752 1.752 0 0 1 1 7.775Zm1.5 0c0 .066.026.13.073.177l6.25 6.25a.25.25 0 0 0 .354 0l5.025-5.025a.25.25 0 0 0 0-.354l-6.25-6.25a.25.25 0 0 0-.177-.073H2.75a.25.25 0 0 0-.25.25ZM6 5a1 1 0 1 1 0 2 1 1 0 0 1 0-2Z"></path> </svg> <span>Tags</span> </a> <a class="Link--secondary no-underline d-inline-block" href="/terser/terser/activity"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-pulse mr-1"> <path d="M6 2c.306 0 .582.187.696.471L10 10.731l1.304-3.26A.751.751 0 0 1 12 7h3.25a.75.75 0 0 1 0 1.5h-2.742l-1.812 4.528a.751.751 0 0 1-1.392 0L6 4.77 4.696 8.03A.75.75 0 0 1 4 8.5H.75a.75.75 0 0 1 0-1.5h2.742l1.812-4.529A.751.751 0 0 1 6 2Z"></path> </svg> <span>Activity</span> </a> </div> <div class="d-flex flex-wrap gap-2"> <div class="flex-1"> <div data-view-component="true" class="BtnGroup d-flex"> <a href="/login?return_to=%2Fterser%2Fterser" rel="nofollow" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"star button","repository_id":29097127,"auth_type":"LOG_IN","originating_url":"https://github.com/terser/terser","user_id":null}}" data-hydro-click-hmac="763e2014e505e28d86e4969c403c856d9639efecdb155fd72869f569830d2bd1" aria-label="You must be signed in to star a repository" data-view-component="true" class="tooltipped tooltipped-sw btn-sm btn btn-block"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-star v-align-text-bottom d-inline-block mr-2"> <path d="M8 .25a.75.75 0 0 1 .673.418l1.882 3.815 4.21.612a.75.75 0 0 1 .416 1.279l-3.046 2.97.719 4.192a.751.751 0 0 1-1.088.791L8 12.347l-3.766 1.98a.75.75 0 0 1-1.088-.79l.72-4.194L.818 6.374a.75.75 0 0 1 .416-1.28l4.21-.611L7.327.668A.75.75 0 0 1 8 .25Zm0 2.445L6.615 5.5a.75.75 0 0 1-.564.41l-3.097.45 2.24 2.184a.75.75 0 0 1 .216.664l-.528 3.084 2.769-1.456a.75.75 0 0 1 .698 0l2.77 1.456-.53-3.084a.75.75 0 0 1 .216-.664l2.24-2.183-3.096-.45a.75.75 0 0 1-.564-.41L8 2.694Z"></path> </svg><span data-view-component="true" class="d-inline"> Star </span> </a></div> </div> <div class="flex-1"> <a href="/login?return_to=%2Fterser%2Fterser" rel="nofollow" id="files-overview-watch-button" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"notification subscription menu watch","repository_id":null,"auth_type":"LOG_IN","originating_url":"https://github.com/terser/terser","user_id":null}}" data-hydro-click-hmac="313ccd8b4f82fc83878942f55c8884e332eca2eff1452099408421d6d5b312cf" aria-label="You must be signed in to change notification settings" data-view-component="true" class="btn-sm btn btn-block"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-bell mr-2"> <path d="M8 16a2 2 0 0 0 1.985-1.75c.017-.137-.097-.25-.235-.25h-3.5c-.138 0-.252.113-.235.25A2 2 0 0 0 8 16ZM3 5a5 5 0 0 1 10 0v2.947c0 .05.015.098.042.139l1.703 2.555A1.519 1.519 0 0 1 13.482 13H2.518a1.516 1.516 0 0 1-1.263-2.36l1.703-2.554A.255.255 0 0 0 3 7.947Zm5-3.5A3.5 3.5 0 0 0 4.5 5v2.947c0 .346-.102.683-.294.97l-1.703 2.556a.017.017 0 0 0-.003.01l.001.006c0 .002.002.004.004.006l.006.004.007.001h10.964l.007-.001.006-.004.004-.006.001-.007a.017.017 0 0 0-.003-.01l-1.703-2.554a1.745 1.745 0 0 1-.294-.97V5A3.5 3.5 0 0 0 8 1.5Z"></path> </svg>Notifications </a> <tool-tip id="tooltip-402a2049-c943-4fb7-9d1f-2cef7bb7a6d5" for="files-overview-watch-button" popover="manual" data-direction="s" data-type="description" data-view-component="true" class="sr-only position-absolute">You must be signed in to change notification settings</tool-tip> </div> <span> </span> </div> </div> </div> <nav data-pjax="#js-repo-pjax-container" aria-label="Repository" data-view-component="true" class="js-repo-nav js-sidenav-container-pjax js-responsive-underlinenav overflow-hidden UnderlineNav px-3 px-md-4 px-lg-5"> <ul data-view-component="true" class="UnderlineNav-body list-style-none"> <li data-view-component="true" class="d-inline-flex"> <a id="code-tab" href="/terser/terser" data-tab-item="i0code-tab" data-selected-links="repo_source repo_downloads repo_commits repo_releases repo_tags repo_branches repo_packages repo_deployments repo_attestations /terser/terser" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g c" data-analytics-event="{"category":"Underline navbar","action":"Click tab","label":"Code","target":"UNDERLINE_NAV.TAB"}" aria-current="page" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item selected"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code UnderlineNav-octicon d-none d-sm-inline"> <path d="m11.28 3.22 4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L13.94 8l-3.72-3.72a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215Zm-6.56 0a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042L2.06 8l3.72 3.72a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L.47 8.53a.75.75 0 0 1 0-1.06Z"></path> </svg> <span data-content="Code">Code</span> <span id="code-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="Not available" data-view-component="true" class="Counter"></span> </a></li> <li data-view-component="true" class="d-inline-flex"> <a id="issues-tab" href="/terser/terser/issues" data-tab-item="i1issues-tab" data-selected-links="repo_issues repo_labels repo_milestones /terser/terser/issues" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g i" data-analytics-event="{"category":"Underline navbar","action":"Click tab","label":"Issues","target":"UNDERLINE_NAV.TAB"}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-issue-opened UnderlineNav-octicon d-none d-sm-inline"> <path d="M8 9.5a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path><path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Z"></path> </svg> <span data-content="Issues">Issues</span> <span id="issues-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="287" data-view-component="true" class="Counter">287</span> </a></li> <li data-view-component="true" class="d-inline-flex"> <a id="pull-requests-tab" href="/terser/terser/pulls" data-tab-item="i2pull-requests-tab" data-selected-links="repo_pulls checks /terser/terser/pulls" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g p" data-analytics-event="{"category":"Underline navbar","action":"Click tab","label":"Pull requests","target":"UNDERLINE_NAV.TAB"}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-git-pull-request UnderlineNav-octicon d-none d-sm-inline"> <path d="M1.5 3.25a2.25 2.25 0 1 1 3 2.122v5.256a2.251 2.251 0 1 1-1.5 0V5.372A2.25 2.25 0 0 1 1.5 3.25Zm5.677-.177L9.573.677A.25.25 0 0 1 10 .854V2.5h1A2.5 2.5 0 0 1 13.5 5v5.628a2.251 2.251 0 1 1-1.5 0V5a1 1 0 0 0-1-1h-1v1.646a.25.25 0 0 1-.427.177L7.177 3.427a.25.25 0 0 1 0-.354ZM3.75 2.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm0 9.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm8.25.75a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Z"></path> </svg> <span data-content="Pull requests">Pull requests</span> <span id="pull-requests-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="27" data-view-component="true" class="Counter">27</span> </a></li> <li data-view-component="true" class="d-inline-flex"> <a id="actions-tab" href="/terser/terser/actions" data-tab-item="i3actions-tab" data-selected-links="repo_actions /terser/terser/actions" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g a" data-analytics-event="{"category":"Underline navbar","action":"Click tab","label":"Actions","target":"UNDERLINE_NAV.TAB"}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-play UnderlineNav-octicon d-none d-sm-inline"> <path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Zm4.879-2.773 4.264 2.559a.25.25 0 0 1 0 .428l-4.264 2.559A.25.25 0 0 1 6 10.559V5.442a.25.25 0 0 1 .379-.215Z"></path> </svg> <span data-content="Actions">Actions</span> <span id="actions-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="Not available" data-view-component="true" class="Counter"></span> </a></li> <li data-view-component="true" class="d-inline-flex"> <a id="projects-tab" href="/terser/terser/projects" data-tab-item="i4projects-tab" data-selected-links="repo_projects new_repo_project repo_project /terser/terser/projects" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g b" data-analytics-event="{"category":"Underline navbar","action":"Click tab","label":"Projects","target":"UNDERLINE_NAV.TAB"}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-table UnderlineNav-octicon d-none d-sm-inline"> <path d="M0 1.75C0 .784.784 0 1.75 0h12.5C15.216 0 16 .784 16 1.75v12.5A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25ZM6.5 6.5v8h7.75a.25.25 0 0 0 .25-.25V6.5Zm8-1.5V1.75a.25.25 0 0 0-.25-.25H6.5V5Zm-13 1.5v7.75c0 .138.112.25.25.25H5v-8ZM5 5V1.5H1.75a.25.25 0 0 0-.25.25V5Z"></path> </svg> <span data-content="Projects">Projects</span> <span id="projects-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="0" hidden="hidden" data-view-component="true" class="Counter">0</span> </a></li> <li data-view-component="true" class="d-inline-flex"> <a id="wiki-tab" href="/terser/terser/wiki" data-tab-item="i5wiki-tab" data-selected-links="repo_wiki /terser/terser/wiki" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g w" data-analytics-event="{"category":"Underline navbar","action":"Click tab","label":"Wiki","target":"UNDERLINE_NAV.TAB"}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-book UnderlineNav-octicon d-none d-sm-inline"> <path d="M0 1.75A.75.75 0 0 1 .75 1h4.253c1.227 0 2.317.59 3 1.501A3.743 3.743 0 0 1 11.006 1h4.245a.75.75 0 0 1 .75.75v10.5a.75.75 0 0 1-.75.75h-4.507a2.25 2.25 0 0 0-1.591.659l-.622.621a.75.75 0 0 1-1.06 0l-.622-.621A2.25 2.25 0 0 0 5.258 13H.75a.75.75 0 0 1-.75-.75Zm7.251 10.324.004-5.073-.002-2.253A2.25 2.25 0 0 0 5.003 2.5H1.5v9h3.757a3.75 3.75 0 0 1 1.994.574ZM8.755 4.75l-.004 7.322a3.752 3.752 0 0 1 1.992-.572H14.5v-9h-3.495a2.25 2.25 0 0 0-2.25 2.25Z"></path> </svg> <span data-content="Wiki">Wiki</span> <span id="wiki-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="Not available" data-view-component="true" class="Counter"></span> </a></li> <li data-view-component="true" class="d-inline-flex"> <a id="security-tab" href="/terser/terser/security" data-tab-item="i6security-tab" data-selected-links="security overview alerts policy token_scanning code_scanning /terser/terser/security" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-hotkey="g s" data-analytics-event="{"category":"Underline navbar","action":"Click tab","label":"Security","target":"UNDERLINE_NAV.TAB"}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-shield UnderlineNav-octicon d-none d-sm-inline"> <path d="M7.467.133a1.748 1.748 0 0 1 1.066 0l5.25 1.68A1.75 1.75 0 0 1 15 3.48V7c0 1.566-.32 3.182-1.303 4.682-.983 1.498-2.585 2.813-5.032 3.855a1.697 1.697 0 0 1-1.33 0c-2.447-1.042-4.049-2.357-5.032-3.855C1.32 10.182 1 8.566 1 7V3.48a1.75 1.75 0 0 1 1.217-1.667Zm.61 1.429a.25.25 0 0 0-.153 0l-5.25 1.68a.25.25 0 0 0-.174.238V7c0 1.358.275 2.666 1.057 3.86.784 1.194 2.121 2.34 4.366 3.297a.196.196 0 0 0 .154 0c2.245-.956 3.582-2.104 4.366-3.298C13.225 9.666 13.5 8.36 13.5 7V3.48a.251.251 0 0 0-.174-.237l-5.25-1.68ZM8.75 4.75v3a.75.75 0 0 1-1.5 0v-3a.75.75 0 0 1 1.5 0ZM9 10.5a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path> </svg> <span data-content="Security">Security</span> <include-fragment src="/terser/terser/security/overall-count" accept="text/fragment+html"></include-fragment> </a></li> <li data-view-component="true" class="d-inline-flex"> <a id="insights-tab" href="/terser/terser/pulse" data-tab-item="i7insights-tab" data-selected-links="repo_graphs repo_contributors dependency_graph dependabot_updates pulse people community /terser/terser/pulse" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" data-analytics-event="{"category":"Underline navbar","action":"Click tab","label":"Insights","target":"UNDERLINE_NAV.TAB"}" data-view-component="true" class="UnderlineNav-item no-wrap js-responsive-underlinenav-item js-selected-navigation-item"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-graph UnderlineNav-octicon d-none d-sm-inline"> <path d="M1.5 1.75V13.5h13.75a.75.75 0 0 1 0 1.5H.75a.75.75 0 0 1-.75-.75V1.75a.75.75 0 0 1 1.5 0Zm14.28 2.53-5.25 5.25a.75.75 0 0 1-1.06 0L7 7.06 4.28 9.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.25-3.25a.75.75 0 0 1 1.06 0L10 7.94l4.72-4.72a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Z"></path> </svg> <span data-content="Insights">Insights</span> <span id="insights-repo-tab-count" data-pjax-replace="" data-turbo-replace="" title="Not available" data-view-component="true" class="Counter"></span> </a></li> </ul> <div style="visibility:hidden;" data-view-component="true" class="UnderlineNav-actions js-responsive-underlinenav-overflow position-absolute pr-3 pr-md-4 pr-lg-5 right-0"> <action-menu data-select-variant="none" data-view-component="true"> <focus-group direction="vertical" mnemonics retain> <button id="action-menu-23ccb51e-ab4d-4c94-886a-9f8df86d9349-button" popovertarget="action-menu-23ccb51e-ab4d-4c94-886a-9f8df86d9349-overlay" aria-controls="action-menu-23ccb51e-ab4d-4c94-886a-9f8df86d9349-list" aria-haspopup="true" aria-labelledby="tooltip-a82189d9-f808-4dc8-af82-81496c5444b7" type="button" data-view-component="true" class="Button Button--iconOnly Button--secondary Button--medium UnderlineNav-item"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-kebab-horizontal Button-visual"> <path d="M8 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3ZM1.5 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Zm13 0a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path> </svg> </button><tool-tip id="tooltip-a82189d9-f808-4dc8-af82-81496c5444b7" for="action-menu-23ccb51e-ab4d-4c94-886a-9f8df86d9349-button" popover="manual" data-direction="s" data-type="label" data-view-component="true" class="sr-only position-absolute">Additional navigation options</tool-tip> <anchored-position data-target="action-menu.overlay" id="action-menu-23ccb51e-ab4d-4c94-886a-9f8df86d9349-overlay" anchor="action-menu-23ccb51e-ab4d-4c94-886a-9f8df86d9349-button" align="start" side="outside-bottom" anchor-offset="normal" popover="auto" data-view-component="true"> <div data-view-component="true" class="Overlay Overlay--size-auto"> <div data-view-component="true" class="Overlay-body Overlay-body--paddingNone"> <action-list> <div data-view-component="true"> <ul aria-labelledby="action-menu-23ccb51e-ab4d-4c94-886a-9f8df86d9349-button" id="action-menu-23ccb51e-ab4d-4c94-886a-9f8df86d9349-list" role="menu" data-view-component="true" class="ActionListWrap--inset ActionListWrap"> <li hidden="hidden" data-menu-item="i0code-tab" data-targets="action-list.items" role="none" data-view-component="true" class="ActionListItem"> <a tabindex="-1" id="item-4171dc58-767b-4c13-b741-9df7c495f2b5" href="/terser/terser" role="menuitem" data-view-component="true" class="ActionListContent ActionListContent--visual16"> <span class="ActionListItem-visual ActionListItem-visual--leading"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code"> <path d="m11.28 3.22 4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L13.94 8l-3.72-3.72a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215Zm-6.56 0a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042L2.06 8l3.72 3.72a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L.47 8.53a.75.75 0 0 1 0-1.06Z"></path> </svg> </span> <span data-view-component="true" class="ActionListItem-label"> Code </span> </a> </li> <li hidden="hidden" data-menu-item="i1issues-tab" data-targets="action-list.items" role="none" data-view-component="true" class="ActionListItem"> <a tabindex="-1" id="item-0347c76b-3268-4f6b-a952-616083d17c6a" href="/terser/terser/issues" role="menuitem" data-view-component="true" class="ActionListContent ActionListContent--visual16"> <span class="ActionListItem-visual ActionListItem-visual--leading"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-issue-opened"> <path d="M8 9.5a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path><path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Z"></path> </svg> </span> <span data-view-component="true" class="ActionListItem-label"> Issues </span> </a> </li> <li hidden="hidden" data-menu-item="i2pull-requests-tab" data-targets="action-list.items" role="none" data-view-component="true" class="ActionListItem"> <a tabindex="-1" id="item-0a11c0e5-0ad2-4865-86b5-9f13278a25d1" href="/terser/terser/pulls" role="menuitem" data-view-component="true" class="ActionListContent ActionListContent--visual16"> <span class="ActionListItem-visual ActionListItem-visual--leading"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-git-pull-request"> <path d="M1.5 3.25a2.25 2.25 0 1 1 3 2.122v5.256a2.251 2.251 0 1 1-1.5 0V5.372A2.25 2.25 0 0 1 1.5 3.25Zm5.677-.177L9.573.677A.25.25 0 0 1 10 .854V2.5h1A2.5 2.5 0 0 1 13.5 5v5.628a2.251 2.251 0 1 1-1.5 0V5a1 1 0 0 0-1-1h-1v1.646a.25.25 0 0 1-.427.177L7.177 3.427a.25.25 0 0 1 0-.354ZM3.75 2.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm0 9.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm8.25.75a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Z"></path> </svg> </span> <span data-view-component="true" class="ActionListItem-label"> Pull requests </span> </a> </li> <li hidden="hidden" data-menu-item="i3actions-tab" data-targets="action-list.items" role="none" data-view-component="true" class="ActionListItem"> <a tabindex="-1" id="item-51e1710e-b10a-4004-8e3e-9c5a50d41cf4" href="/terser/terser/actions" role="menuitem" data-view-component="true" class="ActionListContent ActionListContent--visual16"> <span class="ActionListItem-visual ActionListItem-visual--leading"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-play"> <path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Zm4.879-2.773 4.264 2.559a.25.25 0 0 1 0 .428l-4.264 2.559A.25.25 0 0 1 6 10.559V5.442a.25.25 0 0 1 .379-.215Z"></path> </svg> </span> <span data-view-component="true" class="ActionListItem-label"> Actions </span> </a> </li> <li hidden="hidden" data-menu-item="i4projects-tab" data-targets="action-list.items" role="none" data-view-component="true" class="ActionListItem"> <a tabindex="-1" id="item-42a861de-64e3-4209-adb7-52d9df0e3fed" href="/terser/terser/projects" role="menuitem" data-view-component="true" class="ActionListContent ActionListContent--visual16"> <span class="ActionListItem-visual ActionListItem-visual--leading"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-table"> <path d="M0 1.75C0 .784.784 0 1.75 0h12.5C15.216 0 16 .784 16 1.75v12.5A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25ZM6.5 6.5v8h7.75a.25.25 0 0 0 .25-.25V6.5Zm8-1.5V1.75a.25.25 0 0 0-.25-.25H6.5V5Zm-13 1.5v7.75c0 .138.112.25.25.25H5v-8ZM5 5V1.5H1.75a.25.25 0 0 0-.25.25V5Z"></path> </svg> </span> <span data-view-component="true" class="ActionListItem-label"> Projects </span> </a> </li> <li hidden="hidden" data-menu-item="i5wiki-tab" data-targets="action-list.items" role="none" data-view-component="true" class="ActionListItem"> <a tabindex="-1" id="item-e0585c31-13d4-4fd6-951c-b6078878c74f" href="/terser/terser/wiki" role="menuitem" data-view-component="true" class="ActionListContent ActionListContent--visual16"> <span class="ActionListItem-visual ActionListItem-visual--leading"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-book"> <path d="M0 1.75A.75.75 0 0 1 .75 1h4.253c1.227 0 2.317.59 3 1.501A3.743 3.743 0 0 1 11.006 1h4.245a.75.75 0 0 1 .75.75v10.5a.75.75 0 0 1-.75.75h-4.507a2.25 2.25 0 0 0-1.591.659l-.622.621a.75.75 0 0 1-1.06 0l-.622-.621A2.25 2.25 0 0 0 5.258 13H.75a.75.75 0 0 1-.75-.75Zm7.251 10.324.004-5.073-.002-2.253A2.25 2.25 0 0 0 5.003 2.5H1.5v9h3.757a3.75 3.75 0 0 1 1.994.574ZM8.755 4.75l-.004 7.322a3.752 3.752 0 0 1 1.992-.572H14.5v-9h-3.495a2.25 2.25 0 0 0-2.25 2.25Z"></path> </svg> </span> <span data-view-component="true" class="ActionListItem-label"> Wiki </span> </a> </li> <li hidden="hidden" data-menu-item="i6security-tab" data-targets="action-list.items" role="none" data-view-component="true" class="ActionListItem"> <a tabindex="-1" id="item-2eb3032a-7908-4d39-80a7-8fa397957e39" href="/terser/terser/security" role="menuitem" data-view-component="true" class="ActionListContent ActionListContent--visual16"> <span class="ActionListItem-visual ActionListItem-visual--leading"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-shield"> <path d="M7.467.133a1.748 1.748 0 0 1 1.066 0l5.25 1.68A1.75 1.75 0 0 1 15 3.48V7c0 1.566-.32 3.182-1.303 4.682-.983 1.498-2.585 2.813-5.032 3.855a1.697 1.697 0 0 1-1.33 0c-2.447-1.042-4.049-2.357-5.032-3.855C1.32 10.182 1 8.566 1 7V3.48a1.75 1.75 0 0 1 1.217-1.667Zm.61 1.429a.25.25 0 0 0-.153 0l-5.25 1.68a.25.25 0 0 0-.174.238V7c0 1.358.275 2.666 1.057 3.86.784 1.194 2.121 2.34 4.366 3.297a.196.196 0 0 0 .154 0c2.245-.956 3.582-2.104 4.366-3.298C13.225 9.666 13.5 8.36 13.5 7V3.48a.251.251 0 0 0-.174-.237l-5.25-1.68ZM8.75 4.75v3a.75.75 0 0 1-1.5 0v-3a.75.75 0 0 1 1.5 0ZM9 10.5a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path> </svg> </span> <span data-view-component="true" class="ActionListItem-label"> Security </span> </a> </li> <li hidden="hidden" data-menu-item="i7insights-tab" data-targets="action-list.items" role="none" data-view-component="true" class="ActionListItem"> <a tabindex="-1" id="item-e4c71771-da0c-46a1-b62b-bdea6a65b242" href="/terser/terser/pulse" role="menuitem" data-view-component="true" class="ActionListContent ActionListContent--visual16"> <span class="ActionListItem-visual ActionListItem-visual--leading"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-graph"> <path d="M1.5 1.75V13.5h13.75a.75.75 0 0 1 0 1.5H.75a.75.75 0 0 1-.75-.75V1.75a.75.75 0 0 1 1.5 0Zm14.28 2.53-5.25 5.25a.75.75 0 0 1-1.06 0L7 7.06 4.28 9.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.25-3.25a.75.75 0 0 1 1.06 0L10 7.94l4.72-4.72a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Z"></path> </svg> </span> <span data-view-component="true" class="ActionListItem-label"> Insights </span> </a> </li> </ul> </div></action-list> </div> </div></anchored-position> </focus-group> </action-menu></div> </nav> </div> <turbo-frame id="repo-content-turbo-frame" target="_top" data-turbo-action="advance" class=""> <div id="repo-content-pjax-container" class="repository-content " > <h1 class='sr-only'>terser/terser</h1> <div class="clearfix container-xl px-md-4 px-lg-5 px-3"> <div> <div style="max-width: 100%" data-view-component="true" class="Layout Layout--flowRow-until-md react-repos-overview-margin Layout--sidebarPosition-end Layout--sidebarPosition-flowRow-end"> <div data-view-component="true" class="Layout-main"> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_dompurify_dist_purify_es_mjs-dd1d3ea6a436.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_tanstack_query-core_build_modern_queryObserver_js-node_modules_tanstack_-defd52-843b41414e0e.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/ui_packages_aria-live_aria-live_ts-ui_packages_history_history_ts-ui_packages_promise-with-re-01dc80-b13b6c1d97b0.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/ui_packages_paths_index_ts-8a20a6d3af54.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/ui_packages_ref-selector_RefSelector_tsx-7496afc3784d.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/ui_packages_commit-attribution_index_ts-ui_packages_commit-checks-status_index_ts-ui_packages-762eaa-bac5b6fc3f70.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/ui_packages_code-view-shared_hooks_use-canonical-object_ts-ui_packages_code-view-shared_hooks-c2dbff-278e6449f378.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/repos-overview-a4746a3edebf.js"></script> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/primer-react.eebd62883c61d2053717.module.css" /> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/repos-overview.0ee7cac3ab511a65d9f9.module.css" /> <react-partial partial-name="repos-overview" data-ssr="true" data-attempted-ssr="true" > <script type="application/json" data-target="react-partial.embeddedData">{"props":{"initialPayload":{"allShortcutsEnabled":false,"path":"/","repo":{"id":29097127,"defaultBranch":"master","name":"terser","ownerLogin":"terser","currentUserCanPush":false,"isFork":false,"isEmpty":false,"createdAt":"2015-01-11T16:06:46.000Z","ownerAvatar":"https://avatars.githubusercontent.com/u/43502240?v=4","public":true,"private":false,"isOrgOwned":true},"currentUser":null,"refInfo":{"name":"master","listCacheKey":"v0:1739439649.0","canEdit":false,"refType":"branch","currentOid":"d62b39f13f42c2ec6d17b7f92c7c8b4a014220c7"},"tree":{"items":[{"name":".github","path":".github","contentType":"directory"},{"name":"bin","path":"bin","contentType":"directory"},{"name":"dist","path":"dist","contentType":"directory"},{"name":"lib","path":"lib","contentType":"directory"},{"name":"test","path":"test","contentType":"directory"},{"name":"tools","path":"tools","contentType":"directory"},{"name":".editorconfig","path":".editorconfig","contentType":"file"},{"name":".gitattributes","path":".gitattributes","contentType":"file"},{"name":".gitignore","path":".gitignore","contentType":"file"},{"name":".ls-lint.yml","path":".ls-lint.yml","contentType":"file"},{"name":"CHANGELOG.md","path":"CHANGELOG.md","contentType":"file"},{"name":"CONTRIBUTING.md","path":"CONTRIBUTING.md","contentType":"file"},{"name":"LICENSE","path":"LICENSE","contentType":"file"},{"name":"PATRONS.md","path":"PATRONS.md","contentType":"file"},{"name":"README.md","path":"README.md","contentType":"file"},{"name":"RECIPES.md","path":"RECIPES.md","contentType":"file"},{"name":"SECURITY.md","path":"SECURITY.md","contentType":"file"},{"name":"main.js","path":"main.js","contentType":"file"},{"name":"package-lock.json","path":"package-lock.json","contentType":"file"},{"name":"package.json","path":"package.json","contentType":"file"},{"name":"renovate.json","path":"renovate.json","contentType":"file"},{"name":"rollup.config.js","path":"rollup.config.js","contentType":"file"}],"templateDirectorySuggestionUrl":null,"readme":null,"totalCount":22,"showBranchInfobar":false},"fileTree":null,"fileTreeProcessingTime":null,"foldersToFetch":[],"treeExpanded":false,"symbolsExpanded":false,"isOverview":true,"overview":{"banners":{"shouldRecommendReadme":false,"isPersonalRepo":false,"showUseActionBanner":false,"actionSlug":null,"actionId":null,"showProtectBranchBanner":false,"publishBannersInfo":{"dismissActionNoticePath":"/settings/dismiss-notice/publish_action_from_repo","releasePath":"/terser/terser/releases/new?marketplace=true","showPublishActionBanner":false},"interactionLimitBanner":null,"showInvitationBanner":false,"inviterName":null,"actionsMigrationBannerInfo":{"releaseTags":[],"showImmutableActionsMigrationBanner":false,"initialMigrationStatus":null}},"codeButton":{"contactPath":"/contact","isEnterprise":false,"local":{"protocolInfo":{"httpAvailable":true,"sshAvailable":null,"httpUrl":"https://github.com/terser/terser.git","showCloneWarning":null,"sshUrl":null,"sshCertificatesRequired":null,"sshCertificatesAvailable":null,"ghCliUrl":"gh repo clone terser/terser","defaultProtocol":"http","newSshKeyUrl":"/settings/ssh/new","setProtocolPath":"/users/set_protocol"},"platformInfo":{"cloneUrl":"https://desktop.github.com","showVisualStudioCloneButton":false,"visualStudioCloneUrl":"https://windows.github.com","showXcodeCloneButton":false,"xcodeCloneUrl":"xcode://clone?repo=https%3A%2F%2Fgithub.com%2Fterser%2Fterser","zipballUrl":"/terser/terser/archive/refs/heads/master.zip"}},"newCodespacePath":"/codespaces/new?hide_repo_select=true\u0026repo=29097127"},"popovers":{"rename":null,"renamedParentRepo":null},"commitCount":"3,431","overviewFiles":[{"displayName":"README.md","repoName":"terser","refName":"master","path":"README.md","preferredFileType":"readme","tabName":"README","richText":"\u003carticle class=\"markdown-body entry-content container-lg\" itemprop=\"text\"\u003e\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch1 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e\u003ca target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://camo.githubusercontent.com/27f7d635ff57eafb3dedea8bb1e7e8da26ecea9c1126793e62573e14967e70b4/68747470733a2f2f7465727365722e6f72672f696d672f7465727365722d62616e6e65722d6c6f676f2e706e67\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/27f7d635ff57eafb3dedea8bb1e7e8da26ecea9c1126793e62573e14967e70b4/68747470733a2f2f7465727365722e6f72672f696d672f7465727365722d62616e6e65722d6c6f676f2e706e67\" alt=\"Terser\" width=\"400\" data-canonical-src=\"https://terser.org/img/terser-banner-logo.png\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/h1\u003e\u003ca id=\"\" class=\"anchor\" aria-label=\"Permalink: \" href=\"#\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://npmjs.org/package/terser\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/4f1d9672cab432a1f674455dfe13e6a46bb4965f0cbd2a5bdf575c62423107a4/68747470733a2f2f696d672e736869656c64732e696f2f6e706d2f762f7465727365722e737667\" alt=\"NPM Version\" data-canonical-src=\"https://img.shields.io/npm/v/terser.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://npmjs.org/package/terser\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/44d3e999dd618c97f1ebfada6ef69882c2f791a8212c435bef6ed3f0ccfd3764/68747470733a2f2f696d672e736869656c64732e696f2f6e706d2f646d2f7465727365722e737667\" alt=\"NPM Downloads\" data-canonical-src=\"https://img.shields.io/npm/dm/terser.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://github.com/terser/terser/actions/workflows/ci.yml\"\u003e\u003cimg src=\"https://github.com/terser/terser/actions/workflows/ci.yml/badge.svg\" alt=\"CI pipeline\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/83e62d1539aa0bc62d52d0401494aa4afcaa9438cd85db3be3ab3e97d330bfeb/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f74696572732f62616467652e737667\" alt=\"Opencollective financial contributors\" data-canonical-src=\"https://opencollective.com/terser/tiers/badge.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eA JavaScript mangler/compressor toolkit for ES6+.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003enote\u003c/em\u003e: \u003cs\u003eYou can support this project on patreon: [link]\u003c/s\u003e \u003cstrong\u003eThe Terser Patreon is shutting down in favor of opencollective\u003c/strong\u003e. Check out \u003ca href=\"https://github.com/terser/terser/blob/master/PATRONS.md\"\u003ePATRONS.md\u003c/a\u003e for our first-tier patrons.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eTerser recommends you use RollupJS to bundle your modules, as that produces smaller code overall.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eBeautification\u003c/em\u003e has been undocumented and is \u003cem\u003ebeing removed\u003c/em\u003e from terser, we recommend you use \u003ca href=\"https://npmjs.com/package/prettier\" rel=\"nofollow\"\u003eprettier\u003c/a\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eFind the changelog in \u003ca href=\"https://github.com/terser/terser/blob/master/CHANGELOG.md\"\u003eCHANGELOG.md\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eWhy choose terser?\u003c/h2\u003e\u003ca id=\"user-content-why-choose-terser\" class=\"anchor\" aria-label=\"Permalink: Why choose terser?\" href=\"#why-choose-terser\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003euglify-es\u003c/code\u003e is \u003ca href=\"https://github.com/mishoo/UglifyJS2/issues/3156#issuecomment-392943058\" data-hovercard-type=\"issue\" data-hovercard-url=\"/mishoo/UglifyJS/issues/3156/hovercard\"\u003eno longer maintained\u003c/a\u003e and \u003ccode\u003euglify-js\u003c/code\u003e does not support ES6+.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003e\u003ccode\u003eterser\u003c/code\u003e\u003c/strong\u003e is a fork of \u003ccode\u003euglify-es\u003c/code\u003e that mostly retains API and CLI compatibility\nwith \u003ccode\u003euglify-es\u003c/code\u003e and \u003ccode\u003euglify-js@3\u003c/code\u003e.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eInstall\u003c/h2\u003e\u003ca id=\"user-content-install\" class=\"anchor\" aria-label=\"Permalink: Install\" href=\"#install\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eFirst make sure you have installed the latest version of \u003ca href=\"http://nodejs.org/\" rel=\"nofollow\"\u003enode.js\u003c/a\u003e\n(You may need to restart your computer after this step).\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eFrom NPM for use as a command line app:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"npm install terser -g\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003enpm install terser -g\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eFrom NPM for programmatic use:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"npm install terser\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003enpm install terser\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch1 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCommand line usage\u003c/h1\u003e\u003ca id=\"user-content-command-line-usage\" class=\"anchor\" aria-label=\"Permalink: Command line usage\" href=\"#command-line-usage\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"terser [input files] [options]\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eterser [input files] [options]\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTerser can take multiple input files. It's recommended that you pass the\ninput files first, then pass the options. Terser will parse input files\nin sequence and apply any compression options. The files are parsed in the\nsame global scope, that is, a reference from a file to some\nvariable/function declared in another file will be matched properly.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eCommand line arguments that take options (like --parse, --compress, --mangle and\n--format) can take in a comma-separated list of default option overrides. For\ninstance:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"terser input.js --compress ecma=2015,computed_props=false\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eterser input.js --compress ecma=2015,computed_props=false\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIf no input file is specified, Terser will read from STDIN.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eIf you wish to pass your options before the input files, separate the two with\na double dash to prevent input files being used as option arguments:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"terser --compress --mangle -- input.js\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eterser --compress --mangle -- input.js\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCommand line options\u003c/h3\u003e\u003ca id=\"user-content-command-line-options\" class=\"anchor\" aria-label=\"Permalink: Command line options\" href=\"#command-line-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\" -h, --help Print usage information.\n `--help options` for details on available options.\n -V, --version Print version number.\n -p, --parse \u0026lt;options\u0026gt; Specify parser options:\n `acorn` Use Acorn for parsing.\n `bare_returns` Allow return outside of functions.\n Useful when minifying CommonJS\n modules and Userscripts that may\n be anonymous function wrapped (IIFE)\n by the .user.js engine `caller`.\n `expression` Parse a single expression, rather than\n a program (for parsing JSON).\n `spidermonkey` Assume input files are SpiderMonkey\n AST format (as JSON).\n -c, --compress [options] Enable compressor/specify compressor options:\n `pure_funcs` List of functions that can be safely\n removed when their return values are\n not used.\n -m, --mangle [options] Mangle names/specify mangler options:\n `reserved` List of names that should not be mangled.\n --mangle-props [options] Mangle properties/specify mangler options:\n `builtins` Mangle property names that overlaps\n with standard JavaScript globals and DOM\n API props.\n `debug` Add debug prefix and suffix.\n `keep_quoted` Only mangle unquoted properties, quoted\n properties are automatically reserved.\n `strict` disables quoted properties\n being automatically reserved.\n `regex` Only mangle matched property names.\n `only_annotated` Only mangle properties defined with /*@__MANGLE_PROP__*/.\n `reserved` List of names that should not be mangled.\n -f, --format [options] Specify format options.\n `preamble` Preamble to prepend to the output. You\n can use this to insert a comment, for\n example for licensing information.\n This will not be parsed, but the source\n map will adjust for its presence.\n `quote_style` Quote style:\n 0 - auto\n 1 - single\n 2 - double\n 3 - original\n `wrap_iife` Wrap IIFEs in parenthesis. Note: you may\n want to disable `negate_iife` under\n compressor options.\n `wrap_func_args` Wrap function arguments in parenthesis.\n -o, --output \u0026lt;file\u0026gt; Output file path (default STDOUT). Specify `ast` or\n `spidermonkey` to write Terser or SpiderMonkey AST\n as JSON to STDOUT respectively.\n --comments [filter] Preserve copyright comments in the output. By\n default this works like Google Closure, keeping\n JSDoc-style comments that contain e.g. \u0026quot;@license\u0026quot;,\n or start with \u0026quot;!\u0026quot;. You can optionally pass one of the\n following arguments to this flag:\n - \u0026quot;all\u0026quot; to keep all comments\n - `false` to omit comments in the output\n - a valid JS RegExp like `/foo/` or `/^!/` to\n keep only matching comments.\n Note that currently not *all* comments can be\n kept when compression is on, because of dead\n code removal or cascading statements into\n sequences.\n --config-file \u0026lt;file\u0026gt; Read `minify()` options from JSON file.\n -d, --define \u0026lt;expr\u0026gt;[=value] Global definitions.\n --ecma \u0026lt;version\u0026gt; Specify ECMAScript release: 5, 2015, 2016, etc.\n -e, --enclose [arg[:value]] Embed output in a big function with configurable\n arguments and values.\n --ie8 Support non-standard Internet Explorer 8.\n Equivalent to setting `ie8: true` in `minify()`\n for `compress`, `mangle` and `format` options.\n By default Terser will not try to be IE-proof.\n --keep-classnames Do not mangle/drop class names.\n --keep-fnames Do not mangle/drop function names. Useful for\n code relying on Function.prototype.name.\n --module Input is an ES6 module. If `compress` or `mangle` is\n enabled then the `toplevel` option, as well as strict mode,\n will be enabled.\n --name-cache \u0026lt;file\u0026gt; File to hold mangled name mappings.\n --safari10 Support non-standard Safari 10/11.\n Equivalent to setting `safari10: true` in `minify()`\n for `mangle` and `format` options.\n By default `terser` will not work around\n Safari 10/11 bugs.\n --source-map [options] Enable source map/specify source map options:\n `base` Path to compute relative paths from input files.\n `content` Input source map, useful if you're compressing\n JS that was generated from some other original\n code. Specify \u0026quot;inline\u0026quot; if the source map is\n included within the sources.\n `filename` Name and/or location of the output source.\n `includeSources` Pass this flag if you want to include\n the content of source files in the\n source map as sourcesContent property.\n `root` Path to the original source to be included in\n the source map.\n `url` If specified, path to the source map to append in\n `//# sourceMappingURL`.\n --timings Display operations run time on STDERR.\n --toplevel Compress and/or mangle variables in top level scope.\n --wrap \u0026lt;name\u0026gt; Embed everything in a big function, making the\n “exports” and “global” variables available. You\n need to pass an argument to this option to\n specify the name that your module will take\n when included in, say, a browser.\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003e -h, --help Print usage information.\n `--help options` for details on available options.\n -V, --version Print version number.\n -p, --parse \u0026lt;options\u0026gt; Specify parser options:\n `acorn` Use Acorn for parsing.\n `bare_returns` Allow return outside of functions.\n Useful when minifying CommonJS\n modules and Userscripts that may\n be anonymous function wrapped (IIFE)\n by the .user.js engine `caller`.\n `expression` Parse a single expression, rather than\n a program (for parsing JSON).\n `spidermonkey` Assume input files are SpiderMonkey\n AST format (as JSON).\n -c, --compress [options] Enable compressor/specify compressor options:\n `pure_funcs` List of functions that can be safely\n removed when their return values are\n not used.\n -m, --mangle [options] Mangle names/specify mangler options:\n `reserved` List of names that should not be mangled.\n --mangle-props [options] Mangle properties/specify mangler options:\n `builtins` Mangle property names that overlaps\n with standard JavaScript globals and DOM\n API props.\n `debug` Add debug prefix and suffix.\n `keep_quoted` Only mangle unquoted properties, quoted\n properties are automatically reserved.\n `strict` disables quoted properties\n being automatically reserved.\n `regex` Only mangle matched property names.\n `only_annotated` Only mangle properties defined with /*@__MANGLE_PROP__*/.\n `reserved` List of names that should not be mangled.\n -f, --format [options] Specify format options.\n `preamble` Preamble to prepend to the output. You\n can use this to insert a comment, for\n example for licensing information.\n This will not be parsed, but the source\n map will adjust for its presence.\n `quote_style` Quote style:\n 0 - auto\n 1 - single\n 2 - double\n 3 - original\n `wrap_iife` Wrap IIFEs in parenthesis. Note: you may\n want to disable `negate_iife` under\n compressor options.\n `wrap_func_args` Wrap function arguments in parenthesis.\n -o, --output \u0026lt;file\u0026gt; Output file path (default STDOUT). Specify `ast` or\n `spidermonkey` to write Terser or SpiderMonkey AST\n as JSON to STDOUT respectively.\n --comments [filter] Preserve copyright comments in the output. By\n default this works like Google Closure, keeping\n JSDoc-style comments that contain e.g. \"@license\",\n or start with \"!\". You can optionally pass one of the\n following arguments to this flag:\n - \"all\" to keep all comments\n - `false` to omit comments in the output\n - a valid JS RegExp like `/foo/` or `/^!/` to\n keep only matching comments.\n Note that currently not *all* comments can be\n kept when compression is on, because of dead\n code removal or cascading statements into\n sequences.\n --config-file \u0026lt;file\u0026gt; Read `minify()` options from JSON file.\n -d, --define \u0026lt;expr\u0026gt;[=value] Global definitions.\n --ecma \u0026lt;version\u0026gt; Specify ECMAScript release: 5, 2015, 2016, etc.\n -e, --enclose [arg[:value]] Embed output in a big function with configurable\n arguments and values.\n --ie8 Support non-standard Internet Explorer 8.\n Equivalent to setting `ie8: true` in `minify()`\n for `compress`, `mangle` and `format` options.\n By default Terser will not try to be IE-proof.\n --keep-classnames Do not mangle/drop class names.\n --keep-fnames Do not mangle/drop function names. Useful for\n code relying on Function.prototype.name.\n --module Input is an ES6 module. If `compress` or `mangle` is\n enabled then the `toplevel` option, as well as strict mode,\n will be enabled.\n --name-cache \u0026lt;file\u0026gt; File to hold mangled name mappings.\n --safari10 Support non-standard Safari 10/11.\n Equivalent to setting `safari10: true` in `minify()`\n for `mangle` and `format` options.\n By default `terser` will not work around\n Safari 10/11 bugs.\n --source-map [options] Enable source map/specify source map options:\n `base` Path to compute relative paths from input files.\n `content` Input source map, useful if you're compressing\n JS that was generated from some other original\n code. Specify \"inline\" if the source map is\n included within the sources.\n `filename` Name and/or location of the output source.\n `includeSources` Pass this flag if you want to include\n the content of source files in the\n source map as sourcesContent property.\n `root` Path to the original source to be included in\n the source map.\n `url` If specified, path to the source map to append in\n `//# sourceMappingURL`.\n --timings Display operations run time on STDERR.\n --toplevel Compress and/or mangle variables in top level scope.\n --wrap \u0026lt;name\u0026gt; Embed everything in a big function, making the\n “exports” and “global” variables available. You\n need to pass an argument to this option to\n specify the name that your module will take\n when included in, say, a browser.\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eSpecify \u003ccode\u003e--output\u003c/code\u003e (\u003ccode\u003e-o\u003c/code\u003e) to declare the output file. Otherwise the output\ngoes to STDOUT.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCLI source map options\u003c/h2\u003e\u003ca id=\"user-content-cli-source-map-options\" class=\"anchor\" aria-label=\"Permalink: CLI source map options\" href=\"#cli-source-map-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTerser can generate a source map file, which is highly useful for\ndebugging your compressed JavaScript. To get a source map, pass\n\u003ccode\u003e--source-map --output output.js\u003c/code\u003e (source map will be written out to\n\u003ccode\u003eoutput.js.map\u003c/code\u003e).\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eAdditional options:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003e--source-map \"filename='\u0026lt;NAME\u0026gt;'\"\u003c/code\u003e to specify the name of the source map.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003e--source-map \"root='\u0026lt;URL\u0026gt;'\"\u003c/code\u003e to pass the URL where the original files can be found.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003e--source-map \"url='\u0026lt;URL\u0026gt;'\"\u003c/code\u003e to specify the URL where the source map can be found.\nOtherwise Terser assumes HTTP \u003ccode\u003eX-SourceMap\u003c/code\u003e is being used and will omit the\n\u003ccode\u003e//# sourceMappingURL=\u003c/code\u003e directive.\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003eFor example:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"terser js/file1.js js/file2.js \\\n -o foo.min.js -c -m \\\n --source-map \u0026quot;root='http://foo.com/src',url='foo.min.js.map'\u0026quot;\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eterser js/file1.js js/file2.js \\\n -o foo.min.js -c -m \\\n --source-map \"root='http://foo.com/src',url='foo.min.js.map'\"\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe above will compress and mangle \u003ccode\u003efile1.js\u003c/code\u003e and \u003ccode\u003efile2.js\u003c/code\u003e, will drop the\noutput in \u003ccode\u003efoo.min.js\u003c/code\u003e and the source map in \u003ccode\u003efoo.min.js.map\u003c/code\u003e. The source\nmapping will refer to \u003ccode\u003ehttp://foo.com/src/js/file1.js\u003c/code\u003e and\n\u003ccode\u003ehttp://foo.com/src/js/file2.js\u003c/code\u003e (in fact it will list \u003ccode\u003ehttp://foo.com/src\u003c/code\u003e\nas the source map root, and the original files as \u003ccode\u003ejs/file1.js\u003c/code\u003e and\n\u003ccode\u003ejs/file2.js\u003c/code\u003e).\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eComposed source map\u003c/h3\u003e\u003ca id=\"user-content-composed-source-map\" class=\"anchor\" aria-label=\"Permalink: Composed source map\" href=\"#composed-source-map\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eWhen you're compressing JS code that was output by a compiler such as\nCoffeeScript, mapping to the JS code won't be too helpful. Instead, you'd\nlike to map back to the original code (i.e. CoffeeScript). Terser has an\noption to take an input source map. Assuming you have a mapping from\nCoffeeScript → compiled JS, Terser can generate a map from CoffeeScript →\ncompressed JS by mapping every token in the compiled JS to its original\nlocation.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eTo use this feature pass \u003ccode\u003e--source-map \"content='/path/to/input/source.map'\"\u003c/code\u003e\nor \u003ccode\u003e--source-map \"content=inline\"\u003c/code\u003e if the source map is included inline with\nthe sources.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCLI compress options\u003c/h2\u003e\u003ca id=\"user-content-cli-compress-options\" class=\"anchor\" aria-label=\"Permalink: CLI compress options\" href=\"#cli-compress-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou need to pass \u003ccode\u003e--compress\u003c/code\u003e (\u003ccode\u003e-c\u003c/code\u003e) to enable the compressor. Optionally\nyou can pass a comma-separated list of \u003ca href=\"#compress-options\"\u003ecompress options\u003c/a\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eOptions are in the form \u003ccode\u003efoo=bar\u003c/code\u003e, or just \u003ccode\u003efoo\u003c/code\u003e (the latter implies\na boolean option that you want to set \u003ccode\u003etrue\u003c/code\u003e; it's effectively a\nshortcut for \u003ccode\u003efoo=true\u003c/code\u003e).\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eExample:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"terser file.js -c toplevel,sequences=false\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eterser file.js -c toplevel,sequences=false\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCLI mangle options\u003c/h2\u003e\u003ca id=\"user-content-cli-mangle-options\" class=\"anchor\" aria-label=\"Permalink: CLI mangle options\" href=\"#cli-mangle-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo enable the mangler you need to pass \u003ccode\u003e--mangle\u003c/code\u003e (\u003ccode\u003e-m\u003c/code\u003e). The following\n(comma-separated) options are supported:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003etoplevel\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- mangle names declared in the top level scope.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eeval\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- mangle names visible in scopes where \u003ccode\u003eeval\u003c/code\u003e or \u003ccode\u003ewith\u003c/code\u003e are used.\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003eWhen mangling is enabled but you want to prevent certain names from being\nmangled, you can declare those names with \u003ccode\u003e--mangle reserved\u003c/code\u003e — pass a\ncomma-separated list of names. For example:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"terser ... -m reserved=['$','require','exports']\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eterser ... -m reserved=['$','require','exports']\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eto prevent the \u003ccode\u003erequire\u003c/code\u003e, \u003ccode\u003eexports\u003c/code\u003e and \u003ccode\u003e$\u003c/code\u003e names from being changed.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCLI mangling property names (\u003ccode\u003e--mangle-props\u003c/code\u003e)\u003c/h3\u003e\u003ca id=\"user-content-cli-mangling-property-names---mangle-props\" class=\"anchor\" aria-label=\"Permalink: CLI mangling property names (--mangle-props)\" href=\"#cli-mangling-property-names---mangle-props\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eNote:\u003c/strong\u003e THIS \u003cstrong\u003eWILL\u003c/strong\u003e BREAK YOUR CODE. A good rule of thumb is not to use this unless you know exactly what you're doing and how this works and read this section until the end.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eMangling property names is a separate step, different from variable name mangling. Pass\n\u003ccode\u003e--mangle-props\u003c/code\u003e to enable it. The least dangerous\nway to use this is to use the \u003ccode\u003eregex\u003c/code\u003e option like so:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"terser example.js -c -m --mangle-props regex=/_$/\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eterser example.js -c -m --mangle-props regex=/_$/\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThis will mangle all properties that end with an\nunderscore. So you can use it to mangle internal methods.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eBy default, it will mangle all properties in the\ninput code with the exception of built in DOM properties and properties\nin core JavaScript classes, which is what will break your code if you don't:\u003c/p\u003e\n\u003col dir=\"auto\"\u003e\n\u003cli\u003eControl all the code you're mangling\u003c/li\u003e\n\u003cli\u003eAvoid using a module bundler, as they usually will call Terser on each file individually, making it impossible to pass mangled objects between modules.\u003c/li\u003e\n\u003cli\u003eAvoid calling functions like \u003ccode\u003edefineProperty\u003c/code\u003e or \u003ccode\u003ehasOwnProperty\u003c/code\u003e, because they refer to object properties using strings and will break your code if you don't know what you are doing.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp dir=\"auto\"\u003eAn example:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"// example.js\nvar x = {\n baz_: 0,\n foo_: 1,\n calc: function() {\n return this.foo_ + this.baz_;\n }\n};\nx.bar_ = 2;\nx[\u0026quot;baz_\u0026quot;] = 3;\nconsole.log(x.calc());\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e// example.js\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003ebaz_\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003efoo_\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-en\"\u003ecalc\u003c/span\u003e: \u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003efoo_\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ebaz_\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ebar_\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"baz_\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ecalc\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eMangle all properties (except for JavaScript \u003ccode\u003ebuiltins\u003c/code\u003e) (\u003cstrong\u003every\u003c/strong\u003e unsafe):\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"$ terser example.js -c passes=2 -m --mangle-props\"\u003e\u003cpre\u003e$ terser example.js -c passes=2 -m --mangle-props\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var x={o:3,t:1,i:function(){return this.t+this.o},s:2};console.log(x.i());\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003et\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ei\u003c/span\u003e:\u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003et\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003es\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eMangle all properties except for \u003ccode\u003ereserved\u003c/code\u003e properties (still very unsafe):\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"$ terser example.js -c passes=2 -m --mangle-props reserved=[foo_,bar_]\"\u003e\u003cpre\u003e$ terser example.js -c passes=2 -m --mangle-props reserved=[foo_,bar_]\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var x={o:3,foo_:1,t:function(){return this.foo_+this.o},bar_:2};console.log(x.t());\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003efoo_\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-en\"\u003et\u003c/span\u003e:\u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003efoo_\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ebar_\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003et\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eMangle all properties matching a \u003ccode\u003eregex\u003c/code\u003e (not as unsafe but still unsafe):\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"$ terser example.js -c passes=2 -m --mangle-props regex=/_$/\"\u003e\u003cpre\u003e$ terser example.js -c passes=2 -m --mangle-props regex=/_$/\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var x={o:3,t:1,calc:function(){return this.t+this.o},i:2};console.log(x.calc());\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003et\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ecalc\u003c/span\u003e:\u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003et\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ei\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ecalc\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eCombining mangle properties options:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"$ terser example.js -c passes=2 -m --mangle-props regex=/_$/,reserved=[bar_]\"\u003e\u003cpre\u003e$ terser example.js -c passes=2 -m --mangle-props regex=/_$/,reserved=[bar_]\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var x={o:3,t:1,calc:function(){return this.t+this.o},bar_:2};console.log(x.calc());\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003et\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ecalc\u003c/span\u003e:\u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003et\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003ethis\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ebar_\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ecalc\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIn order for this to be of any use, we avoid mangling standard JS names and DOM\nAPI properties by default (\u003ccode\u003e--mangle-props builtins\u003c/code\u003e to override).\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eA regular expression can be used to define which property names should be\nmangled. For example, \u003ccode\u003e--mangle-props regex=/^_/\u003c/code\u003e will only mangle property\nnames that start with an underscore.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eWhen you compress multiple files using this option, in order for them to\nwork together in the end we need to ensure somehow that one property gets\nmangled to the same name in all of them. For this, pass \u003ccode\u003e--name-cache filename.json\u003c/code\u003e\nand Terser will maintain these mappings in a file which can then be reused.\nIt should be initially empty. Example:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"$ rm -f /tmp/cache.json # start fresh\n$ terser file1.js file2.js --mangle-props --name-cache /tmp/cache.json -o part1.js\n$ terser file3.js file4.js --mangle-props --name-cache /tmp/cache.json -o part2.js\"\u003e\u003cpre\u003e$ rm -f /tmp/cache.json \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e start fresh\u003c/span\u003e\n$ terser file1.js file2.js --mangle-props --name-cache /tmp/cache.json -o part1.js\n$ terser file3.js file4.js --mangle-props --name-cache /tmp/cache.json -o part2.js\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eNow, \u003ccode\u003epart1.js\u003c/code\u003e and \u003ccode\u003epart2.js\u003c/code\u003e will be consistent with each other in terms\nof mangled property names.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eUsing the name cache is not necessary if you compress all your files in a\nsingle call to Terser.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eMangling unquoted names (\u003ccode\u003e--mangle-props keep_quoted\u003c/code\u003e)\u003c/h3\u003e\u003ca id=\"user-content-mangling-unquoted-names---mangle-props-keep_quoted\" class=\"anchor\" aria-label=\"Permalink: Mangling unquoted names (--mangle-props keep_quoted)\" href=\"#mangling-unquoted-names---mangle-props-keep_quoted\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eUsing quoted property name (\u003ccode\u003eo[\"foo\"]\u003c/code\u003e) reserves the property name (\u003ccode\u003efoo\u003c/code\u003e)\nso that it is not mangled throughout the entire script even when used in an\nunquoted style (\u003ccode\u003eo.foo\u003c/code\u003e). Example:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"// stuff.js\nvar o = {\n \u0026quot;foo\u0026quot;: 1,\n bar: 3\n};\no.foo += o.bar;\nconsole.log(o.foo);\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e// stuff.js\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"foo\"\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003ebar\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003e3\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003efoo\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ebar\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003efoo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"$ terser stuff.js --mangle-props keep_quoted -c -m\"\u003e\u003cpre\u003e$ terser stuff.js --mangle-props keep_quoted -c -m\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var o={foo:1,o:3};o.foo+=o.o,console.log(o.foo);\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003efoo\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003efoo\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003efoo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eDebugging property name mangling\u003c/h3\u003e\u003ca id=\"user-content-debugging-property-name-mangling\" class=\"anchor\" aria-label=\"Permalink: Debugging property name mangling\" href=\"#debugging-property-name-mangling\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can also pass \u003ccode\u003e--mangle-props debug\u003c/code\u003e in order to mangle property names\nwithout completely obscuring them. For example the property \u003ccode\u003eo.foo\u003c/code\u003e\nwould mangle to \u003ccode\u003eo._$foo$_\u003c/code\u003e with this option. This allows property mangling\nof a large codebase while still being able to debug the code and identify\nwhere mangling is breaking things.\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"$ terser stuff.js --mangle-props debug -c -m\"\u003e\u003cpre\u003e$ terser stuff.js --mangle-props debug -c -m\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var o={_$foo$_:1,_$bar$_:3};o._$foo$_+=o._$bar$_,console.log(o._$foo$_);\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e_$foo$_\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e_$bar$_\u003c/span\u003e:\u003cspan class=\"pl-c1\"\u003e3\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e_$foo$_\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e_$bar$_\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eo\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e_$foo$_\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can also pass a custom suffix using \u003ccode\u003e--mangle-props debug=XYZ\u003c/code\u003e. This would then\nmangle \u003ccode\u003eo.foo\u003c/code\u003e to \u003ccode\u003eo._$foo$XYZ_\u003c/code\u003e. You can change this each time you compile a\nscript to identify how a property got mangled. One technique is to pass a\nrandom number on every compile to simulate mangling changing with different\ninputs (e.g. as you update the input script with new properties), and to help\nidentify mistakes like writing mangled keys to storage.\u003c/p\u003e\n\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch1 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eAPI Reference\u003c/h1\u003e\u003ca id=\"user-content-api-reference\" class=\"anchor\" aria-label=\"Permalink: API Reference\" href=\"#api-reference\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\n\u003cp dir=\"auto\"\u003eAssuming installation via NPM, you can load Terser in your application\nlike this:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"const { minify } = require(\u0026quot;terser\u0026quot;);\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e minify \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-en\"\u003erequire\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"terser\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eOr,\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"import { minify } from \u0026quot;terser\u0026quot;;\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eminify\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efrom\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"terser\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eBrowser loading is also supported. It exposes a global variable \u003ccode\u003eTerser\u003c/code\u003e containing a \u003ccode\u003e.minify\u003c/code\u003e property:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-text-html-basic notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"\u0026lt;script src=\u0026quot;https://cdn.jsdelivr.net/npm/source-map@0.7.3/dist/source-map.js\u0026quot;\u0026gt;\u0026lt;/script\u0026gt;\n\u0026lt;script src=\u0026quot;https://cdn.jsdelivr.net/npm/terser/dist/bundle.min.js\u0026quot;\u0026gt;\u0026lt;/script\u0026gt;\"\u003e\u003cpre\u003e\u003cspan class=\"pl-kos\"\u003e\u0026lt;\u003c/span\u003e\u003cspan class=\"pl-ent\"\u003escript\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003esrc\u003c/span\u003e=\"\u003cspan class=\"pl-s\"\u003ehttps://cdn.jsdelivr.net/npm/source-map@0.7.3/dist/source-map.js\u003c/span\u003e\"\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026lt;/\u003c/span\u003e\u003cspan class=\"pl-ent\"\u003escript\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e\u0026lt;\u003c/span\u003e\u003cspan class=\"pl-ent\"\u003escript\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003esrc\u003c/span\u003e=\"\u003cspan class=\"pl-s\"\u003ehttps://cdn.jsdelivr.net/npm/terser/dist/bundle.min.js\u003c/span\u003e\"\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026lt;/\u003c/span\u003e\u003cspan class=\"pl-ent\"\u003escript\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThere is an async high level function, \u003cstrong\u003e\u003ccode\u003easync minify(code, options)\u003c/code\u003e\u003c/strong\u003e,\nwhich will perform all minification \u003ca href=\"#minify-options\"\u003ephases\u003c/a\u003e in a configurable\nmanner. By default \u003ccode\u003eminify()\u003c/code\u003e will enable \u003ca href=\"#compress-options\"\u003e\u003ccode\u003ecompress\u003c/code\u003e\u003c/a\u003e\nand \u003ca href=\"#mangle-options\"\u003e\u003ccode\u003emangle\u003c/code\u003e\u003c/a\u003e. Example:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var code = \u0026quot;function add(first, second) { return first + second; }\u0026quot;;\nvar result = await minify(code, { sourceMap: true });\nconsole.log(result.code); // minified output: function add(n,d){return n+d}\nconsole.log(result.map); // source map\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"function add(first, second) { return first + second; }\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003esourceMap\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// minified output: function add(n,d){return n+d}\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003emap\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// source map\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThere is also a \u003ccode\u003eminify_sync()\u003c/code\u003e alternative version of it, which returns instantly.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eYou can \u003ccode\u003eminify\u003c/code\u003e more than one JavaScript file at a time by using an object\nfor the first argument where the keys are file names and the values are source\ncode:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var code = {\n \u0026quot;file1.js\u0026quot;: \u0026quot;function add(first, second) { return first + second; }\u0026quot;,\n \u0026quot;file2.js\u0026quot;: \u0026quot;console.log(add(1 + 2, 3 + 4));\u0026quot;\n};\nvar result = await minify(code);\nconsole.log(result.code);\n// function add(d,n){return d+n}console.log(add(3,7));\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file1.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"function add(first, second) { return first + second; }\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file2.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"console.log(add(1 + 2, 3 + 4));\"\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// function add(d,n){return d+n}console.log(add(3,7));\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ccode\u003etoplevel\u003c/code\u003e option:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var code = {\n \u0026quot;file1.js\u0026quot;: \u0026quot;function add(first, second) { return first + second; }\u0026quot;,\n \u0026quot;file2.js\u0026quot;: \u0026quot;console.log(add(1 + 2, 3 + 4));\u0026quot;\n};\nvar options = { toplevel: true };\nvar result = await minify(code, options);\nconsole.log(result.code);\n// console.log(3+7);\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file1.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"function add(first, second) { return first + second; }\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file2.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"console.log(add(1 + 2, 3 + 4));\"\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003etoplevel\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// console.log(3+7);\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ccode\u003enameCache\u003c/code\u003e option:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var options = {\n mangle: {\n toplevel: true,\n },\n nameCache: {}\n};\nvar result1 = await minify({\n \u0026quot;file1.js\u0026quot;: \u0026quot;function add(first, second) { return first + second; }\u0026quot;\n}, options);\nvar result2 = await minify({\n \u0026quot;file2.js\u0026quot;: \u0026quot;console.log(add(1 + 2, 3 + 4));\u0026quot;\n}, options);\nconsole.log(result1.code);\n// function n(n,r){return n+r}\nconsole.log(result2.code);\n// console.log(n(3,7));\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003emangle\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003etoplevel\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003enameCache\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult1\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file1.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"function add(first, second) { return first + second; }\"\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult2\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file2.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"console.log(add(1 + 2, 3 + 4));\"\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// function n(n,r){return n+r}\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// console.log(n(3,7));\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou may persist the name cache to the file system in the following way:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var cacheFileName = \u0026quot;/tmp/cache.json\u0026quot;;\nvar options = {\n mangle: {\n properties: true,\n },\n nameCache: JSON.parse(fs.readFileSync(cacheFileName, \u0026quot;utf8\u0026quot;))\n};\nfs.writeFileSync(\u0026quot;part1.js\u0026quot;, await minify({\n \u0026quot;file1.js\u0026quot;: fs.readFileSync(\u0026quot;file1.js\u0026quot;, \u0026quot;utf8\u0026quot;),\n \u0026quot;file2.js\u0026quot;: fs.readFileSync(\u0026quot;file2.js\u0026quot;, \u0026quot;utf8\u0026quot;)\n}, options).code, \u0026quot;utf8\u0026quot;);\nfs.writeFileSync(\u0026quot;part2.js\u0026quot;, await minify({\n \u0026quot;file3.js\u0026quot;: fs.readFileSync(\u0026quot;file3.js\u0026quot;, \u0026quot;utf8\u0026quot;),\n \u0026quot;file4.js\u0026quot;: fs.readFileSync(\u0026quot;file4.js\u0026quot;, \u0026quot;utf8\u0026quot;)\n}, options).code, \u0026quot;utf8\u0026quot;);\nfs.writeFileSync(cacheFileName, JSON.stringify(options.nameCache), \u0026quot;utf8\u0026quot;);\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecacheFileName\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"/tmp/cache.json\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003emangle\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eproperties\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003enameCache\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003eJSON\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eparse\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ereadFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecacheFileName\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ewriteFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"part1.js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file1.js\"\u003c/span\u003e: \u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ereadFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"file1.js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file2.js\"\u003c/span\u003e: \u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ereadFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"file2.js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ewriteFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"part2.js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file3.js\"\u003c/span\u003e: \u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ereadFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"file3.js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file4.js\"\u003c/span\u003e: \u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ereadFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"file4.js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ewriteFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecacheFileName\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003eJSON\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003estringify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003enameCache\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAn example of a combination of \u003ccode\u003eminify()\u003c/code\u003e options:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var code = {\n \u0026quot;file1.js\u0026quot;: \u0026quot;function add(first, second) { return first + second; }\u0026quot;,\n \u0026quot;file2.js\u0026quot;: \u0026quot;console.log(add(1 + 2, 3 + 4));\u0026quot;\n};\nvar options = {\n toplevel: true,\n compress: {\n global_defs: {\n \u0026quot;@console.log\u0026quot;: \u0026quot;alert\u0026quot;\n },\n passes: 2\n },\n format: {\n preamble: \u0026quot;/* minified */\u0026quot;\n }\n};\nvar result = await minify(code, options);\nconsole.log(result.code);\n// /* minified */\n// alert(10);\u0026quot;\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file1.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"function add(first, second) { return first + second; }\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"file2.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"console.log(add(1 + 2, 3 + 4));\"\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003etoplevel\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003ecompress\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eglobal_defs\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"@console.log\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"alert\"\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003epasses\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003e2\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eformat\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003epreamble\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"/* minified */\"\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eoptions\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// /* minified */\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// alert(10);\"\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAn error example:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"try {\n const result = await minify({\u0026quot;foo.js\u0026quot; : \u0026quot;if (0) else console.log(1);\u0026quot;});\n // Do something with result\n} catch (error) {\n const { message, filename, line, col, pos } = error;\n // Do something with error\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003etry\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"foo.js\"\u003c/span\u003e : \u003cspan class=\"pl-s\"\u003e\"if (0) else console.log(1);\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// Do something with result\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003ecatch\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eerror\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e message\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e filename\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e line\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e col\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e pos \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eerror\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// Do something with error\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eMinify options\u003c/h2\u003e\u003ca id=\"user-content-minify-options\" class=\"anchor\" aria-label=\"Permalink: Minify options\" href=\"#minify-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eecma\u003c/code\u003e (default \u003ccode\u003eundefined\u003c/code\u003e) - pass \u003ccode\u003e5\u003c/code\u003e, \u003ccode\u003e2015\u003c/code\u003e, \u003ccode\u003e2016\u003c/code\u003e, etc to override\n\u003ccode\u003ecompress\u003c/code\u003e and \u003ccode\u003eformat\u003c/code\u003e's \u003ccode\u003eecma\u003c/code\u003e options.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eenclose\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) - pass \u003ccode\u003etrue\u003c/code\u003e, or a string in the format\nof \u003ccode\u003e\"args[:values]\"\u003c/code\u003e, where \u003ccode\u003eargs\u003c/code\u003e and \u003ccode\u003evalues\u003c/code\u003e are comma-separated\nargument names and values, respectively, to embed the output in a big\nfunction with the configurable arguments and values.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eparse\u003c/code\u003e (default \u003ccode\u003e{}\u003c/code\u003e) — pass an object if you wish to specify some\nadditional \u003ca href=\"#parse-options\"\u003eparse options\u003c/a\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ecompress\u003c/code\u003e (default \u003ccode\u003e{}\u003c/code\u003e) — pass \u003ccode\u003efalse\u003c/code\u003e to skip compressing entirely.\nPass an object to specify custom \u003ca href=\"#compress-options\"\u003ecompress options\u003c/a\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003emangle\u003c/code\u003e (default \u003ccode\u003etrue\u003c/code\u003e) — pass \u003ccode\u003efalse\u003c/code\u003e to skip mangling names, or pass\nan object to specify \u003ca href=\"#mangle-options\"\u003emangle options\u003c/a\u003e (see below).\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003emangle.properties\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) — a subcategory of the mangle option.\nPass an object to specify custom \u003ca href=\"#mangle-properties-options\"\u003emangle property options\u003c/a\u003e.\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003emodule\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) — Use when minifying an ES6 module. \"use strict\"\nis implied and names can be mangled on the top scope. If \u003ccode\u003ecompress\u003c/code\u003e or\n\u003ccode\u003emangle\u003c/code\u003e is enabled then the \u003ccode\u003etoplevel\u003c/code\u003e option will be enabled.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eformat\u003c/code\u003e or \u003ccode\u003eoutput\u003c/code\u003e (default \u003ccode\u003enull\u003c/code\u003e) — pass an object if you wish to specify\nadditional \u003ca href=\"#format-options\"\u003eformat options\u003c/a\u003e. The defaults are optimized\nfor best compression.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003esourceMap\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) - pass an object if you wish to specify\n\u003ca href=\"#source-map-options\"\u003esource map options\u003c/a\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003etoplevel\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) - set to \u003ccode\u003etrue\u003c/code\u003e if you wish to enable top level\nvariable and function name mangling and to drop unused variables and functions.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003enameCache\u003c/code\u003e (default \u003ccode\u003enull\u003c/code\u003e) - pass an empty object \u003ccode\u003e{}\u003c/code\u003e or a previously\nused \u003ccode\u003enameCache\u003c/code\u003e object if you wish to cache mangled variable and\nproperty names across multiple invocations of \u003ccode\u003eminify()\u003c/code\u003e. Note: this is\na read/write property. \u003ccode\u003eminify()\u003c/code\u003e will read the name cache state of this\nobject and update it during minification so that it may be\nreused or externally persisted by the user.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eie8\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) - set to \u003ccode\u003etrue\u003c/code\u003e to support IE8.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_classnames\u003c/code\u003e (default: \u003ccode\u003eundefined\u003c/code\u003e) - pass \u003ccode\u003etrue\u003c/code\u003e to prevent discarding or mangling\nof class names. Pass a regular expression to only keep class names matching that regex.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_fnames\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) - pass \u003ccode\u003etrue\u003c/code\u003e to prevent discarding or mangling\nof function names. Pass a regular expression to only keep function names matching that regex.\nUseful for code relying on \u003ccode\u003eFunction.prototype.name\u003c/code\u003e. If the top level minify option\n\u003ccode\u003ekeep_classnames\u003c/code\u003e is \u003ccode\u003eundefined\u003c/code\u003e it will be overridden with the value of the top level\nminify option \u003ccode\u003ekeep_fnames\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003esafari10\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) - pass \u003ccode\u003etrue\u003c/code\u003e to work around Safari 10/11 bugs in\nloop scoping and \u003ccode\u003eawait\u003c/code\u003e. See \u003ccode\u003esafari10\u003c/code\u003e options in \u003ca href=\"#mangle-options\"\u003e\u003ccode\u003emangle\u003c/code\u003e\u003c/a\u003e\nand \u003ca href=\"#format-options\"\u003e\u003ccode\u003eformat\u003c/code\u003e\u003c/a\u003e for details.\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eMinify options structure\u003c/h2\u003e\u003ca id=\"user-content-minify-options-structure\" class=\"anchor\" aria-label=\"Permalink: Minify options structure\" href=\"#minify-options-structure\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"{\n parse: {\n // parse options\n },\n compress: {\n // compress options\n },\n mangle: {\n // mangle options\n\n properties: {\n // mangle property options\n }\n },\n format: {\n // format options (can also use `output` for backwards compatibility)\n },\n sourceMap: {\n // source map options\n },\n ecma: 5, // specify one of: 5, 2015, 2016, etc.\n enclose: false, // or specify true, or \u0026quot;args:values\u0026quot;\n keep_classnames: false,\n keep_fnames: false,\n ie8: false,\n module: false,\n nameCache: null, // or specify a name cache object\n safari10: false,\n toplevel: false\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eparse\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// parse options\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003ecompress\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// compress options\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003emangle\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// mangle options\u003c/span\u003e\n\n \u003cspan class=\"pl-c1\"\u003eproperties\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// mangle property options\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eformat\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// format options (can also use `output` for backwards compatibility)\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003esourceMap\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// source map options\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eecma\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003e5\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// specify one of: 5, 2015, 2016, etc.\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eenclose\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// or specify true, or \"args:values\"\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003ekeep_classnames\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003ekeep_fnames\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eie8\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003emodule\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003enameCache\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003enull\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// or specify a name cache object\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003esafari10\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003etoplevel\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eSource map options\u003c/h3\u003e\u003ca id=\"user-content-source-map-options\" class=\"anchor\" aria-label=\"Permalink: Source map options\" href=\"#source-map-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo generate a source map:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var result = await minify({\u0026quot;file1.js\u0026quot;: \u0026quot;var a = function() {};\u0026quot;}, {\n sourceMap: {\n filename: \u0026quot;out.js\u0026quot;,\n url: \u0026quot;out.js.map\u0026quot;\n }\n});\nconsole.log(result.code); // minified output\nconsole.log(result.map); // source map\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"file1.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"var a = function() {};\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003esourceMap\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003efilename\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"out.js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eurl\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"out.js.map\"\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// minified output\u003c/span\u003e\n\u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003emap\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// source map\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eNote that the source map is not saved in a file, it's just returned in\n\u003ccode\u003eresult.map\u003c/code\u003e. The value passed for \u003ccode\u003esourceMap.url\u003c/code\u003e is only used to set\n\u003ccode\u003e//# sourceMappingURL=out.js.map\u003c/code\u003e in \u003ccode\u003eresult.code\u003c/code\u003e. The value of\n\u003ccode\u003efilename\u003c/code\u003e is only used to set \u003ccode\u003efile\u003c/code\u003e attribute (see \u003ca href=\"https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k\" rel=\"nofollow\"\u003ethe spec\u003c/a\u003e)\nin source map file.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eYou can set option \u003ccode\u003esourceMap.url\u003c/code\u003e to be \u003ccode\u003e\"inline\"\u003c/code\u003e and source map will\nbe appended to code.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eYou can also specify sourceRoot property to be included in source map:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var result = await minify({\u0026quot;file1.js\u0026quot;: \u0026quot;var a = function() {};\u0026quot;}, {\n sourceMap: {\n root: \u0026quot;http://example.com/src\u0026quot;,\n url: \u0026quot;out.js.map\u0026quot;\n }\n});\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"file1.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"var a = function() {};\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003esourceMap\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eroot\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"http://example.com/src\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eurl\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"out.js.map\"\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIf you're compressing compiled JavaScript and have a source map for it, you\ncan use \u003ccode\u003esourceMap.content\u003c/code\u003e:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var result = await minify({\u0026quot;compiled.js\u0026quot;: \u0026quot;compiled code\u0026quot;}, {\n sourceMap: {\n content: \u0026quot;content from compiled.js.map\u0026quot;,\n url: \u0026quot;minified.js.map\u0026quot;\n }\n});\n// same as before, it returns `code` and `map`\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"compiled.js\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"compiled code\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003esourceMap\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003econtent\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"content from compiled.js.map\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eurl\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"minified.js.map\"\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// same as before, it returns `code` and `map`\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIf you're using the \u003ccode\u003eX-SourceMap\u003c/code\u003e header instead, you can just omit \u003ccode\u003esourceMap.url\u003c/code\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eIf you happen to need the source map as a raw object, set \u003ccode\u003esourceMap.asObject\u003c/code\u003e to \u003ccode\u003etrue\u003c/code\u003e.\u003c/p\u003e\n\n\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eParse options\u003c/h2\u003e\u003ca id=\"user-content-parse-options\" class=\"anchor\" aria-label=\"Permalink: Parse options\" href=\"#parse-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ebare_returns\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- support top level \u003ccode\u003ereturn\u003c/code\u003e statements\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ehtml5_comments\u003c/code\u003e (default \u003ccode\u003etrue\u003c/code\u003e)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eshebang\u003c/code\u003e (default \u003ccode\u003etrue\u003c/code\u003e) -- support \u003ccode\u003e#!command\u003c/code\u003e as the first line\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003espidermonkey\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- accept a Spidermonkey (Mozilla) AST\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCompress options\u003c/h2\u003e\u003ca id=\"user-content-compress-options\" class=\"anchor\" aria-label=\"Permalink: Compress options\" href=\"#compress-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003edefaults\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Pass \u003ccode\u003efalse\u003c/code\u003e to disable most default\nenabled \u003ccode\u003ecompress\u003c/code\u003e transforms. Useful when you only want to enable a few\n\u003ccode\u003ecompress\u003c/code\u003e options while disabling the rest.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003earrows\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Class and object literal methods are converted\nwill also be converted to arrow expressions if the resultant code is shorter:\n\u003ccode\u003em(){return x}\u003c/code\u003e becomes \u003ccode\u003em:()=\u0026gt;x\u003c/code\u003e. To do this to regular ES5 functions which\ndon't use \u003ccode\u003ethis\u003c/code\u003e or \u003ccode\u003earguments\u003c/code\u003e, see \u003ccode\u003eunsafe_arrows\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003earguments\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- replace \u003ccode\u003earguments[index]\u003c/code\u003e with function\nparameter name whenever possible.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ebooleans\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- various optimizations for boolean context,\nfor example \u003ccode\u003e!!a ? b : c → a ? b : c\u003c/code\u003e\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ebooleans_as_integers\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- Turn booleans into 0 and 1, also\nmakes comparisons with booleans use \u003ccode\u003e==\u003c/code\u003e and \u003ccode\u003e!=\u003c/code\u003e instead of \u003ccode\u003e===\u003c/code\u003e and \u003ccode\u003e!==\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ecollapse_vars\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Collapse single-use non-constant variables,\nside effects permitting.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ecomparisons\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- apply certain optimizations to binary nodes,\ne.g. \u003ccode\u003e!(a \u0026lt;= b) → a \u0026gt; b\u003c/code\u003e (only when \u003ccode\u003eunsafe_comps\u003c/code\u003e), attempts to negate binary\nnodes, e.g. \u003ccode\u003ea = !b \u0026amp;\u0026amp; !c \u0026amp;\u0026amp; !d \u0026amp;\u0026amp; !e → a=!(b||c||d||e)\u003c/code\u003e etc. Note: \u003ccode\u003ecomparisons\u003c/code\u003e\nworks best with \u003ccode\u003elhs_constants\u003c/code\u003e enabled.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ecomputed_props\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Transforms constant computed properties\ninto regular ones: \u003ccode\u003e{[\"computed\"]: 1}\u003c/code\u003e is converted to \u003ccode\u003e{computed: 1}\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003econditionals\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- apply optimizations for \u003ccode\u003eif\u003c/code\u003e-s and conditional\nexpressions\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003edead_code\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- remove unreachable code\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003edirectives\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- remove redundant or non-standard directives\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003edrop_console\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to discard calls to\n\u003ccode\u003econsole.*\u003c/code\u003e functions. If you only want to discard a portion of console,\nyou can pass an array like this \u003ccode\u003e['log', 'info']\u003c/code\u003e, which will only discard \u003ccode\u003econsole.log\u003c/code\u003e、 \u003ccode\u003econsole.info\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003edrop_debugger\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- remove \u003ccode\u003edebugger;\u003c/code\u003e statements\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eecma\u003c/code\u003e (default: \u003ccode\u003e5\u003c/code\u003e) -- Pass \u003ccode\u003e2015\u003c/code\u003e or greater to enable \u003ccode\u003ecompress\u003c/code\u003e options that\nwill transform ES5 code into smaller ES6+ equivalent forms.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eevaluate\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- attempt to evaluate constant expressions\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eexpression\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to preserve completion values\nfrom terminal statements without \u003ccode\u003ereturn\u003c/code\u003e, e.g. in bookmarklets.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eglobal_defs\u003c/code\u003e (default: \u003ccode\u003e{}\u003c/code\u003e) -- see \u003ca href=\"#conditional-compilation\"\u003econditional compilation\u003c/a\u003e\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ehoist_funs\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- hoist function declarations\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ehoist_props\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- hoist properties from constant object and\narray literals into regular variables subject to a set of constraints. For example:\n\u003ccode\u003evar o={p:1, q:2}; f(o.p, o.q);\u003c/code\u003e is converted to \u003ccode\u003ef(1, 2);\u003c/code\u003e. Note: \u003ccode\u003ehoist_props\u003c/code\u003e\nworks best with \u003ccode\u003emangle\u003c/code\u003e enabled, the \u003ccode\u003ecompress\u003c/code\u003e option \u003ccode\u003epasses\u003c/code\u003e set to \u003ccode\u003e2\u003c/code\u003e or higher,\nand the \u003ccode\u003ecompress\u003c/code\u003e option \u003ccode\u003etoplevel\u003c/code\u003e enabled.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ehoist_vars\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- hoist \u003ccode\u003evar\u003c/code\u003e declarations (this is \u003ccode\u003efalse\u003c/code\u003e\nby default because it seems to increase the size of the output in general)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eif_return\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- optimizations for if/return and if/continue\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003einline\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- inline calls to function with simple/\u003ccode\u003ereturn\u003c/code\u003e statement:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003efalse\u003c/code\u003e -- same as \u003ccode\u003e0\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e0\u003c/code\u003e -- disabled inlining\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e1\u003c/code\u003e -- inline simple functions\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e2\u003c/code\u003e -- inline functions with arguments\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e3\u003c/code\u003e -- inline functions with arguments and variables\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003etrue\u003c/code\u003e -- same as \u003ccode\u003e3\u003c/code\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ejoin_vars\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- join consecutive \u003ccode\u003evar\u003c/code\u003e, \u003ccode\u003elet\u003c/code\u003e and \u003ccode\u003econst\u003c/code\u003e statements\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_classnames\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to prevent the compressor from\ndiscarding class names. Pass a regular expression to only keep class names matching\nthat regex. See also: the \u003ccode\u003ekeep_classnames\u003c/code\u003e \u003ca href=\"#mangle-options\"\u003emangle option\u003c/a\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_fargs\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Prevents the compressor from discarding unused\nfunction arguments. You need this for code which relies on \u003ccode\u003eFunction.length\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_fnames\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to prevent the\ncompressor from discarding function names. Pass a regular expression to only keep\nfunction names matching that regex. Useful for code relying on \u003ccode\u003eFunction.prototype.name\u003c/code\u003e.\nSee also: the \u003ccode\u003ekeep_fnames\u003c/code\u003e \u003ca href=\"#mangle-options\"\u003emangle option\u003c/a\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_infinity\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to prevent \u003ccode\u003eInfinity\u003c/code\u003e from\nbeing compressed into \u003ccode\u003e1/0\u003c/code\u003e, which may cause performance issues on Chrome.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003elhs_constants\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Moves constant values to the left-hand side\nof binary nodes. \u003ccode\u003efoo == 42 → 42 == foo\u003c/code\u003e\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eloops\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- optimizations for \u003ccode\u003edo\u003c/code\u003e, \u003ccode\u003ewhile\u003c/code\u003e and \u003ccode\u003efor\u003c/code\u003e loops\nwhen we can statically determine the condition.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003emodule\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e when compressing an ES6 module. Strict\nmode is implied and the \u003ccode\u003etoplevel\u003c/code\u003e option as well.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003enegate_iife\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- negate \"Immediately-Called Function Expressions\"\nwhere the return value is discarded, to avoid the parens that the\ncode generator would insert.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003epasses\u003c/code\u003e (default: \u003ccode\u003e1\u003c/code\u003e) -- The maximum number of times to run compress.\nIn some cases more than one pass leads to further compressed code. Keep in\nmind more passes will take more time.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eproperties\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- rewrite property access using the dot notation, for\nexample \u003ccode\u003efoo[\"bar\"] → foo.bar\u003c/code\u003e\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003epure_funcs\u003c/code\u003e (default: \u003ccode\u003enull\u003c/code\u003e) -- You can pass an array of names and\nTerser will assume that those functions do not produce side\neffects. DANGER: will not check if the name is redefined in scope.\nAn example case here, for instance \u003ccode\u003evar q = Math.floor(a/b)\u003c/code\u003e. If\nvariable \u003ccode\u003eq\u003c/code\u003e is not used elsewhere, Terser will drop it, but will\nstill keep the \u003ccode\u003eMath.floor(a/b)\u003c/code\u003e, not knowing what it does. You can\npass \u003ccode\u003epure_funcs: [ 'Math.floor' ]\u003c/code\u003e to let it know that this\nfunction won't produce any side effect, in which case the whole\nstatement would get discarded. The current implementation adds some\noverhead (compression will be slower).\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003epure_getters\u003c/code\u003e (default: \u003ccode\u003e\"strict\"\u003c/code\u003e) -- If you pass \u003ccode\u003etrue\u003c/code\u003e for\nthis, Terser will assume that object property access\n(e.g. \u003ccode\u003efoo.bar\u003c/code\u003e or \u003ccode\u003efoo[\"bar\"]\u003c/code\u003e) doesn't have any side effects.\nSpecify \u003ccode\u003e\"strict\"\u003c/code\u003e to treat \u003ccode\u003efoo.bar\u003c/code\u003e as side-effect-free only when\n\u003ccode\u003efoo\u003c/code\u003e is certain to not throw, i.e. not \u003ccode\u003enull\u003c/code\u003e or \u003ccode\u003eundefined\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003epure_new\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- Set to \u003ccode\u003etrue\u003c/code\u003e to assume \u003ccode\u003enew X()\u003c/code\u003e never has\nside effects.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ereduce_vars\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Improve optimization on variables assigned with and\nused as constant values.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ereduce_funcs\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Inline single-use functions when\npossible. Depends on \u003ccode\u003ereduce_vars\u003c/code\u003e being enabled. Disabling this option\nsometimes improves performance of the output code.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003esequences\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- join consecutive simple statements using the\ncomma operator. May be set to a positive integer to specify the maximum number\nof consecutive comma sequences that will be generated. If this option is set to\n\u003ccode\u003etrue\u003c/code\u003e then the default \u003ccode\u003esequences\u003c/code\u003e limit is \u003ccode\u003e200\u003c/code\u003e. Set option to \u003ccode\u003efalse\u003c/code\u003e or \u003ccode\u003e0\u003c/code\u003e\nto disable. The smallest \u003ccode\u003esequences\u003c/code\u003e length is \u003ccode\u003e2\u003c/code\u003e. A \u003ccode\u003esequences\u003c/code\u003e value of \u003ccode\u003e1\u003c/code\u003e\nis grandfathered to be equivalent to \u003ccode\u003etrue\u003c/code\u003e and as such means \u003ccode\u003e200\u003c/code\u003e. On rare\noccasions the default sequences limit leads to very slow compress times in which\ncase a value of \u003ccode\u003e20\u003c/code\u003e or less is recommended.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eside_effects\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Remove expressions which have no side effects\nand whose results aren't used.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eswitches\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- de-duplicate and remove unreachable \u003ccode\u003eswitch\u003c/code\u003e branches\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003etoplevel\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- drop unreferenced functions (\u003ccode\u003e\"funcs\"\u003c/code\u003e) and/or\nvariables (\u003ccode\u003e\"vars\"\u003c/code\u003e) in the top level scope (\u003ccode\u003efalse\u003c/code\u003e by default, \u003ccode\u003etrue\u003c/code\u003e to drop\nboth unreferenced functions and variables)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003etop_retain\u003c/code\u003e (default: \u003ccode\u003enull\u003c/code\u003e) -- prevent specific toplevel functions and\nvariables from \u003ccode\u003eunused\u003c/code\u003e removal (can be array, comma-separated, RegExp or\nfunction. Implies \u003ccode\u003etoplevel\u003c/code\u003e)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003etypeofs\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- Transforms \u003ccode\u003etypeof foo == \"undefined\"\u003c/code\u003e into\n\u003ccode\u003efoo === void 0\u003c/code\u003e. Note: recommend to set this value to \u003ccode\u003efalse\u003c/code\u003e for IE10 and\nearlier versions due to known issues.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- apply \"unsafe\" transformations\n(\u003ca href=\"#the-unsafe-compress-option\"\u003edetails\u003c/a\u003e).\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe_arrows\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- Convert ES5 style anonymous function\nexpressions to arrow functions if the function body does not reference \u003ccode\u003ethis\u003c/code\u003e.\nNote: it is not always safe to perform this conversion if code relies on the\nthe function having a \u003ccode\u003eprototype\u003c/code\u003e, which arrow functions lack.\nThis transform requires that the \u003ccode\u003eecma\u003c/code\u003e compress option is set to \u003ccode\u003e2015\u003c/code\u003e or greater.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe_comps\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- Reverse \u003ccode\u003e\u0026lt;\u003c/code\u003e and \u003ccode\u003e\u0026lt;=\u003c/code\u003e to \u003ccode\u003e\u0026gt;\u003c/code\u003e and \u003ccode\u003e\u0026gt;=\u003c/code\u003e to\nallow improved compression. This might be unsafe when an at least one of two\noperands is an object with computed values due the use of methods like \u003ccode\u003eget\u003c/code\u003e,\nor \u003ccode\u003evalueOf\u003c/code\u003e. This could cause change in execution order after operands in the\ncomparison are switching. Compression only works if both \u003ccode\u003ecomparisons\u003c/code\u003e and\n\u003ccode\u003eunsafe_comps\u003c/code\u003e are both set to true.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe_Function\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- compress and mangle \u003ccode\u003eFunction(args, code)\u003c/code\u003e\nwhen both \u003ccode\u003eargs\u003c/code\u003e and \u003ccode\u003ecode\u003c/code\u003e are string literals.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe_math\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- optimize numerical expressions like\n\u003ccode\u003e2 * x * 3\u003c/code\u003e into \u003ccode\u003e6 * x\u003c/code\u003e, which may give imprecise floating point results.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe_symbols\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- removes keys from native Symbol\ndeclarations, e.g \u003ccode\u003eSymbol(\"kDog\")\u003c/code\u003e becomes \u003ccode\u003eSymbol()\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe_methods\u003c/code\u003e (default: false) -- Converts \u003ccode\u003e{ m: function(){} }\u003c/code\u003e to\n\u003ccode\u003e{ m(){} }\u003c/code\u003e. \u003ccode\u003eecma\u003c/code\u003e must be set to \u003ccode\u003e6\u003c/code\u003e or greater to enable this transform.\nIf \u003ccode\u003eunsafe_methods\u003c/code\u003e is a RegExp then key/value pairs with keys matching the\nRegExp will be converted to concise methods.\nNote: if enabled there is a risk of getting a \"\u003ccode\u003e\u0026lt;method name\u0026gt;\u003c/code\u003e is not a\nconstructor\" TypeError should any code try to \u003ccode\u003enew\u003c/code\u003e the former function.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe_proto\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- optimize expressions like\n\u003ccode\u003eArray.prototype.slice.call(a)\u003c/code\u003e into \u003ccode\u003e[].slice.call(a)\u003c/code\u003e\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe_regexp\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- enable substitutions of variables with\n\u003ccode\u003eRegExp\u003c/code\u003e values the same way as if they are constants.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunsafe_undefined\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) -- substitute \u003ccode\u003evoid 0\u003c/code\u003e if there is a\nvariable named \u003ccode\u003eundefined\u003c/code\u003e in scope (variable name will be mangled, typically\nreduced to a single character)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eunused\u003c/code\u003e (default: \u003ccode\u003etrue\u003c/code\u003e) -- drop unreferenced functions and variables (simple\ndirect variable assignments do not count as references unless set to \u003ccode\u003e\"keep_assign\"\u003c/code\u003e)\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eMangle options\u003c/h2\u003e\u003ca id=\"user-content-mangle-options\" class=\"anchor\" aria-label=\"Permalink: Mangle options\" href=\"#mangle-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eeval\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to mangle names visible in scopes\nwhere \u003ccode\u003eeval\u003c/code\u003e or \u003ccode\u003ewith\u003c/code\u003e are used.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_classnames\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to not mangle class names.\nPass a regular expression to only keep class names matching that regex.\nSee also: the \u003ccode\u003ekeep_classnames\u003c/code\u003e \u003ca href=\"#compress-options\"\u003ecompress option\u003c/a\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_fnames\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to not mangle function names.\nPass a regular expression to only keep function names matching that regex.\nUseful for code relying on \u003ccode\u003eFunction.prototype.name\u003c/code\u003e. See also: the \u003ccode\u003ekeep_fnames\u003c/code\u003e\n\u003ca href=\"#compress-options\"\u003ecompress option\u003c/a\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003emodule\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e an ES6 modules, where the toplevel\nscope is not the global scope. Implies \u003ccode\u003etoplevel\u003c/code\u003e and assumes input code is strict mode JS.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003enth_identifier\u003c/code\u003e (default: an internal mangler that weights based on character\nfrequency analysis) -- Pass an object with a \u003ccode\u003eget(n)\u003c/code\u003e function that converts an\nordinal into the nth most favored (usually shortest) identifier.\nOptionally also provide \u003ccode\u003ereset()\u003c/code\u003e, \u003ccode\u003esort()\u003c/code\u003e, and \u003ccode\u003econsider(chars, delta)\u003c/code\u003e to\nuse character frequency analysis of the source code.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ereserved\u003c/code\u003e (default \u003ccode\u003e[]\u003c/code\u003e) -- Pass an array of identifiers that should be\nexcluded from mangling. Example: \u003ccode\u003e[\"foo\", \"bar\"]\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003etoplevel\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to mangle names declared in the\ntop level scope.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003esafari10\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- Pass \u003ccode\u003etrue\u003c/code\u003e to work around the Safari 10 loop\niterator \u003ca href=\"https://bugs.webkit.org/show_bug.cgi?id=171041\" rel=\"nofollow\"\u003ebug\u003c/a\u003e\n\"Cannot declare a let variable twice\".\nSee also: the \u003ccode\u003esafari10\u003c/code\u003e \u003ca href=\"#format-options\"\u003eformat option\u003c/a\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003eExamples:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"// test.js\nvar globalVar;\nfunction funcName(firstLongName, anotherLongName) {\n var myVariable = firstLongName + anotherLongName;\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e// test.js\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eglobalVar\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e \u003cspan class=\"pl-en\"\u003efuncName\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003efirstLongName\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eanotherLongName\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003emyVariable\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003efirstLongName\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eanotherLongName\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var code = fs.readFileSync(\u0026quot;test.js\u0026quot;, \u0026quot;utf8\u0026quot;);\n\nawait minify(code).code;\n// 'function funcName(a,n){}var globalVar;'\n\nawait minify(code, { mangle: { reserved: ['firstLongName'] } }).code;\n// 'function funcName(firstLongName,a){}var globalVar;'\n\nawait minify(code, { mangle: { toplevel: true } }).code;\n// 'function n(n,a){}var a;'\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ereadFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"test.js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\n\u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// 'function funcName(a,n){}var globalVar;'\u003c/span\u003e\n\n\u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003emangle\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003ereserved\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e'firstLongName'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// 'function funcName(firstLongName,a){}var globalVar;'\u003c/span\u003e\n\n\u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003emangle\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003etoplevel\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// 'function n(n,a){}var a;'\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eMangle properties options\u003c/h3\u003e\u003ca id=\"user-content-mangle-properties-options\" class=\"anchor\" aria-label=\"Permalink: Mangle properties options\" href=\"#mangle-properties-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ebuiltins\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) — Use \u003ccode\u003etrue\u003c/code\u003e to allow the mangling of builtin\nDOM properties. Not recommended to override this setting.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003edebug\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) — Mangle names with the original name still present.\nPass an empty string \u003ccode\u003e\"\"\u003c/code\u003e to enable, or a non-empty string to set the debug suffix.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_quoted\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) — How quoting properties (\u003ccode\u003e{\"prop\": ...}\u003c/code\u003e and \u003ccode\u003eobj[\"prop\"]\u003c/code\u003e) controls what gets mangled.\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003e\"strict\"\u003c/code\u003e (recommended) -- \u003ccode\u003eobj.prop\u003c/code\u003e is mangled.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003efalse\u003c/code\u003e -- \u003ccode\u003eobj[\"prop\"]\u003c/code\u003e is mangled.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003etrue\u003c/code\u003e -- \u003ccode\u003eobj.prop\u003c/code\u003e is mangled unless there is \u003ccode\u003eobj[\"prop\"]\u003c/code\u003e elsewhere in the code.\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003enth_identifier\u003c/code\u003e (default: an internal mangler that weights based on character\nfrequency analysis) -- Pass an object with a \u003ccode\u003eget(n)\u003c/code\u003e function that converts an\nordinal into the nth most favored (usually shortest) identifier.\nOptionally also provide \u003ccode\u003ereset()\u003c/code\u003e, \u003ccode\u003esort()\u003c/code\u003e, and \u003ccode\u003econsider(chars, delta)\u003c/code\u003e to\nuse character frequency analysis of the source code.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eregex\u003c/code\u003e (default: \u003ccode\u003enull\u003c/code\u003e) — Pass a \u003ca href=\"https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp\" rel=\"nofollow\"\u003eRegExp literal or pattern string\u003c/a\u003e to only mangle property matching the regular expression.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ereserved\u003c/code\u003e (default: \u003ccode\u003e[]\u003c/code\u003e) — Do not mangle property names listed in the\n\u003ccode\u003ereserved\u003c/code\u003e array.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eundeclared\u003c/code\u003e (default: \u003ccode\u003efalse\u003c/code\u003e) - Mangle those names when they are accessed\nas properties of known top level variables but their declarations are never\nfound in input code. May be useful when only minifying parts of a project.\nSee \u003ca href=\"https://github.com/terser/terser/issues/397\" data-hovercard-type=\"issue\" data-hovercard-url=\"/terser/terser/issues/397/hovercard\"\u003e#397\u003c/a\u003e for more details.\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eFormat options\u003c/h2\u003e\u003ca id=\"user-content-format-options\" class=\"anchor\" aria-label=\"Permalink: Format options\" href=\"#format-options\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThese options control the format of Terser's output code. Previously known\nas \"output options\".\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eascii_only\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- escape Unicode characters in strings and\nregexps (affects directives with non-ascii characters becoming invalid)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ebeautify\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- (DEPRECATED) whether to beautify the output.\nWhen using the legacy \u003ccode\u003e-b\u003c/code\u003e CLI flag, this is set to true by default.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ebraces\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- always insert braces in \u003ccode\u003eif\u003c/code\u003e, \u003ccode\u003efor\u003c/code\u003e,\n\u003ccode\u003edo\u003c/code\u003e, \u003ccode\u003ewhile\u003c/code\u003e or \u003ccode\u003ewith\u003c/code\u003e statements, even if their body is a single\nstatement.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ecomments\u003c/code\u003e (default \u003ccode\u003e\"some\"\u003c/code\u003e) -- by default it keeps JSDoc-style comments\nthat contain \"@license\", \"@copyright\", \"@preserve\" or start with \u003ccode\u003e!\u003c/code\u003e, pass \u003ccode\u003etrue\u003c/code\u003e\nor \u003ccode\u003e\"all\"\u003c/code\u003e to preserve all comments, \u003ccode\u003efalse\u003c/code\u003e to omit comments in the output,\na regular expression string (e.g. \u003ccode\u003e/^!/\u003c/code\u003e) or a function.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eecma\u003c/code\u003e (default \u003ccode\u003e5\u003c/code\u003e) -- set desired EcmaScript standard version for output.\nSet \u003ccode\u003eecma\u003c/code\u003e to \u003ccode\u003e2015\u003c/code\u003e or greater to emit shorthand object properties - i.e.:\n\u003ccode\u003e{a}\u003c/code\u003e instead of \u003ccode\u003e{a: a}\u003c/code\u003e. The \u003ccode\u003eecma\u003c/code\u003e option will only change the output in\ndirect control of the beautifier. Non-compatible features in your input will\nstill be output as is. For example: an \u003ccode\u003eecma\u003c/code\u003e setting of \u003ccode\u003e5\u003c/code\u003e will \u003cstrong\u003enot\u003c/strong\u003e\nconvert modern code to ES5.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eindent_level\u003c/code\u003e (default \u003ccode\u003e4\u003c/code\u003e)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eindent_start\u003c/code\u003e (default \u003ccode\u003e0\u003c/code\u003e) -- prefix all lines by that many spaces\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003einline_script\u003c/code\u003e (default \u003ccode\u003etrue\u003c/code\u003e) -- escape HTML comments and the slash in\noccurrences of \u003ccode\u003e\u0026lt;/script\u0026gt;\u003c/code\u003e in strings\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_numbers\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- keep number literals as it was in original code\n(disables optimizations like converting \u003ccode\u003e1000000\u003c/code\u003e into \u003ccode\u003e1e6\u003c/code\u003e)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ekeep_quoted_props\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- when turned on, prevents stripping\nquotes from property names in object literals.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003emax_line_len\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- maximum line length (for minified code)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003epreamble\u003c/code\u003e (default \u003ccode\u003enull\u003c/code\u003e) -- when passed it must be a string and\nit will be prepended to the output literally. The source map will\nadjust for this text. Can be used to insert a comment containing\nlicensing information, for example.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003equote_keys\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- pass \u003ccode\u003etrue\u003c/code\u003e to quote all keys in literal\nobjects\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003equote_style\u003c/code\u003e (default \u003ccode\u003e0\u003c/code\u003e) -- preferred quote style for strings (affects\nquoted property names and directives as well):\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003e0\u003c/code\u003e -- prefers double quotes, switches to single quotes when there are\nmore double quotes in the string itself. \u003ccode\u003e0\u003c/code\u003e is best for gzip size.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e1\u003c/code\u003e -- always use single quotes\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e2\u003c/code\u003e -- always use double quotes\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e3\u003c/code\u003e -- always use the original quotes\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003epreserve_annotations\u003c/code\u003e -- (default \u003ccode\u003efalse\u003c/code\u003e) -- Preserve \u003ca href=\"#annotations\"\u003eTerser annotations\u003c/a\u003e in the output.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003esafari10\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- set this option to \u003ccode\u003etrue\u003c/code\u003e to work around\nthe \u003ca href=\"https://bugs.webkit.org/show_bug.cgi?id=176685\" rel=\"nofollow\"\u003eSafari 10/11 await bug\u003c/a\u003e.\nSee also: the \u003ccode\u003esafari10\u003c/code\u003e \u003ca href=\"#mangle-options\"\u003emangle option\u003c/a\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003esemicolons\u003c/code\u003e (default \u003ccode\u003etrue\u003c/code\u003e) -- separate statements with semicolons. If\nyou pass \u003ccode\u003efalse\u003c/code\u003e then whenever possible we will use a newline instead of a\nsemicolon, leading to more readable output of minified code (size before\ngzip could be smaller; size after gzip insignificantly larger).\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003eshebang\u003c/code\u003e (default \u003ccode\u003etrue\u003c/code\u003e) -- preserve shebang \u003ccode\u003e#!\u003c/code\u003e in preamble (bash scripts)\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003espidermonkey\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- produce a Spidermonkey (Mozilla) AST\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ewebkit\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- enable workarounds for WebKit bugs.\nPhantomJS users should set this option to \u003ccode\u003etrue\u003c/code\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ewrap_iife\u003c/code\u003e (default \u003ccode\u003efalse\u003c/code\u003e) -- pass \u003ccode\u003etrue\u003c/code\u003e to wrap immediately invoked\nfunction expressions. See\n\u003ca href=\"https://github.com/mishoo/UglifyJS2/issues/640\" data-hovercard-type=\"issue\" data-hovercard-url=\"/mishoo/UglifyJS/issues/640/hovercard\"\u003e#640\u003c/a\u003e for more details.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003ewrap_func_args\u003c/code\u003e (default \u003ccode\u003etrue\u003c/code\u003e) -- pass \u003ccode\u003efalse\u003c/code\u003e if you do not want to wrap\nfunction expressions that are passed as arguments, in parenthesis. See\n\u003ca href=\"https://github.com/nolanlawson/optimize-js\"\u003eOptimizeJS\u003c/a\u003e for more details.\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch1 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eMiscellaneous\u003c/h1\u003e\u003ca id=\"user-content-miscellaneous\" class=\"anchor\" aria-label=\"Permalink: Miscellaneous\" href=\"#miscellaneous\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eKeeping copyright notices or other comments\u003c/h3\u003e\u003ca id=\"user-content-keeping-copyright-notices-or-other-comments\" class=\"anchor\" aria-label=\"Permalink: Keeping copyright notices or other comments\" href=\"#keeping-copyright-notices-or-other-comments\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can pass \u003ccode\u003e--comments\u003c/code\u003e to retain certain comments in the output. By\ndefault it will keep comments starting with \"!\" and JSDoc-style comments that\ncontain \"@preserve\", \"@copyright\", \"@license\" or \"@cc_on\" (conditional compilation for IE).\nYou can pass \u003ccode\u003e--comments all\u003c/code\u003e to keep all the comments, or a valid JavaScript regexp to\nkeep only comments that match this regexp. For example \u003ccode\u003e--comments /^!/\u003c/code\u003e\nwill keep comments like \u003ccode\u003e/*! Copyright Notice */\u003c/code\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eNote, however, that there might be situations where comments are lost. For\nexample:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"function f() {\n /** @preserve Foo Bar */\n function g() {\n // this function is never called\n }\n return something();\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e \u003cspan class=\"pl-en\"\u003ef\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e/** \u003cspan class=\"pl-k\"\u003e@preserve\u003c/span\u003e Foo Bar */\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eg\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// this function is never called\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-en\"\u003esomething\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eEven though it has \"@preserve\", the comment will be lost because the inner\nfunction \u003ccode\u003eg\u003c/code\u003e (which is the AST node to which the comment is attached to) is\ndiscarded by the compressor as not referenced.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThe safest comments where to place copyright information (or other info that\nneeds to be kept in the output) are comments attached to toplevel nodes.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eThe \u003ccode\u003eunsafe\u003c/code\u003e \u003ccode\u003ecompress\u003c/code\u003e option\u003c/h3\u003e\u003ca id=\"user-content-the-unsafe-compress-option\" class=\"anchor\" aria-label=\"Permalink: The unsafecompress option\" href=\"#the-unsafe-compress-option\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIt enables some transformations that \u003cem\u003emight\u003c/em\u003e break code logic in certain\ncontrived cases, but should be fine for most code. It assumes that standard\nbuilt-in ECMAScript functions and classes have not been altered or replaced.\nYou might want to try it on your own code; it should reduce the minified size.\nSome examples of the optimizations made when this option is enabled:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003enew Array(1, 2, 3)\u003c/code\u003e or \u003ccode\u003eArray(1, 2, 3)\u003c/code\u003e → \u003ccode\u003e[ 1, 2, 3 ]\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003eArray.from([1, 2, 3])\u003c/code\u003e → \u003ccode\u003e[1, 2, 3]\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003enew Object()\u003c/code\u003e → \u003ccode\u003e{}\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003eString(exp)\u003c/code\u003e or \u003ccode\u003eexp.toString()\u003c/code\u003e → \u003ccode\u003e\"\" + exp\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003enew Object/RegExp/Function/Error/Array (...)\u003c/code\u003e → we discard the \u003ccode\u003enew\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e\"foo bar\".substr(4)\u003c/code\u003e → \u003ccode\u003e\"bar\"\u003c/code\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eConditional compilation\u003c/h3\u003e\u003ca id=\"user-content-conditional-compilation\" class=\"anchor\" aria-label=\"Permalink: Conditional compilation\" href=\"#conditional-compilation\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can use the \u003ccode\u003e--define\u003c/code\u003e (\u003ccode\u003e-d\u003c/code\u003e) switch in order to declare global\nvariables that Terser will assume to be constants (unless defined in\nscope). For example if you pass \u003ccode\u003e--define DEBUG=false\u003c/code\u003e then, coupled with\ndead code removal Terser will discard the following from the output:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"if (DEBUG) {\n console.log(\u0026quot;debug stuff\u0026quot;);\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eDEBUG\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-smi\"\u003econsole\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elog\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"debug stuff\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can specify nested constants in the form of \u003ccode\u003e--define env.DEBUG=false\u003c/code\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eAnother way of doing that is to declare your globals as constants in a\nseparate file and include it into the build. For example you can have a\n\u003ccode\u003ebuild/defines.js\u003c/code\u003e file with the following:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var DEBUG = false;\nvar PRODUCTION = true;\n// etc.\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003eDEBUG\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003ePRODUCTION\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// etc.\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eand build your code like this:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"terser build/defines.js js/foo.js js/bar.js... -c\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eterser build/defines.js js/foo.js js/bar.js... -c\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTerser will notice the constants and, since they cannot be altered, it\nwill evaluate references to them to the value itself and drop unreachable\ncode as usual. The build will contain the \u003ccode\u003econst\u003c/code\u003e declarations if you use\nthem. If you are targeting \u0026lt; ES6 environments which does not support \u003ccode\u003econst\u003c/code\u003e,\nusing \u003ccode\u003evar\u003c/code\u003e with \u003ccode\u003ereduce_vars\u003c/code\u003e (enabled by default) should suffice.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eConditional compilation API\u003c/h3\u003e\u003ca id=\"user-content-conditional-compilation-api\" class=\"anchor\" aria-label=\"Permalink: Conditional compilation API\" href=\"#conditional-compilation-api\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can also use conditional compilation via the programmatic API. With the difference that the\nproperty name is \u003ccode\u003eglobal_defs\u003c/code\u003e and is a compressor property:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"var result = await minify(fs.readFileSync(\u0026quot;input.js\u0026quot;, \u0026quot;utf8\u0026quot;), {\n compress: {\n dead_code: true,\n global_defs: {\n DEBUG: false\n }\n }\n});\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003efs\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ereadFileSync\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"input.js\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"utf8\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003ecompress\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003edead_code\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eglobal_defs\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eDEBUG\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo replace an identifier with an arbitrary non-constant expression it is\nnecessary to prefix the \u003ccode\u003eglobal_defs\u003c/code\u003e key with \u003ccode\u003e\"@\"\u003c/code\u003e to instruct Terser\nto parse the value as an expression:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"await minify(\u0026quot;alert('hello');\u0026quot;, {\n compress: {\n global_defs: {\n \u0026quot;@alert\u0026quot;: \u0026quot;console.log\u0026quot;\n }\n }\n}).code;\n// returns: 'console.log(\u0026quot;hello\u0026quot;);'\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"alert('hello');\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003ecompress\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eglobal_defs\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"@alert\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"console.log\"\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// returns: 'console.log(\"hello\");'\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eOtherwise it would be replaced as string literal:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"await minify(\u0026quot;alert('hello');\u0026quot;, {\n compress: {\n global_defs: {\n \u0026quot;alert\u0026quot;: \u0026quot;console.log\u0026quot;\n }\n }\n}).code;\n// returns: '\u0026quot;console.log\u0026quot;(\u0026quot;hello\u0026quot;);'\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"alert('hello');\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003ecompress\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c1\"\u003eglobal_defs\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"alert\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"console.log\"\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e// returns: '\"console.log\"(\"hello\");'\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eAnnotations\u003c/h3\u003e\u003ca id=\"user-content-annotations\" class=\"anchor\" aria-label=\"Permalink: Annotations\" href=\"#annotations\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAnnotations in Terser are a way to tell it to treat a certain function call differently. The following annotations are available:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003e/*@__INLINE__*/\u003c/code\u003e - forces a function to be inlined somewhere.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e/*@__NOINLINE__*/\u003c/code\u003e - Makes sure the called function is not inlined into the call site.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e/*@__PURE__*/\u003c/code\u003e - Marks a function call as pure. That means, it can safely be dropped.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e/*@__KEY__*/\u003c/code\u003e - Marks a string literal as a property to also mangle it when mangling properties.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003e/*@__MANGLE_PROP__*/\u003c/code\u003e - Opts-in an object property (or class field) for mangling, when the property mangler is enabled.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003eYou can use either a \u003ccode\u003e@\u003c/code\u003e sign at the start, or a \u003ccode\u003e#\u003c/code\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eHere are some examples on how to use them:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"/*@__INLINE__*/\nfunction_always_inlined_here()\n\n/*#__NOINLINE__*/\nfunction_cant_be_inlined_into_here()\n\nconst x = /*#__PURE__*/i_am_dropped_if_x_is_not_used()\n\nfunction lookup(object, key) { return object[key]; }\nlookup({ i_will_be_mangled_too: \u0026quot;bar\u0026quot; }, /*@__KEY__*/ \u0026quot;i_will_be_mangled_too\u0026quot;);\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e/*\u003cspan class=\"pl-k\"\u003e@__INLINE__\u003c/span\u003e*/\u003c/span\u003e\n\u003cspan class=\"pl-en\"\u003efunction_always_inlined_here\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e/*#__NOINLINE__*/\u003c/span\u003e\n\u003cspan class=\"pl-en\"\u003efunction_cant_be_inlined_into_here\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\n\n\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e/*#__PURE__*/\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ei_am_dropped_if_x_is_not_used\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\n\n\u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e \u003cspan class=\"pl-en\"\u003elookup\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eobject\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ekey\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eobject\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ekey\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-en\"\u003elookup\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003ei_will_be_mangled_too\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"bar\"\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e/*\u003cspan class=\"pl-k\"\u003e@__KEY__\u003c/span\u003e*/\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e\"i_will_be_mangled_too\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eESTree / SpiderMonkey AST\u003c/h3\u003e\u003ca id=\"user-content-estree--spidermonkey-ast\" class=\"anchor\" aria-label=\"Permalink: ESTree / SpiderMonkey AST\" href=\"#estree--spidermonkey-ast\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTerser has its own abstract syntax tree format; for\n\u003ca href=\"http://lisperator.net/blog/uglifyjs-why-not-switching-to-spidermonkey-ast/\" rel=\"nofollow\"\u003epractical reasons\u003c/a\u003e\nwe can't easily change to using the SpiderMonkey AST internally. However,\nTerser now has a converter which can import a SpiderMonkey AST.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eFor example \u003ca href=\"https://github.com/acornjs/acorn\"\u003eAcorn\u003c/a\u003e is a super-fast parser that produces a\nSpiderMonkey AST. It has a small CLI utility that parses one file and dumps\nthe AST in JSON on the standard output. To use Terser to mangle and\ncompress that:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"acorn file.js | terser -p spidermonkey -m -c\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eacorn file.js | terser -p spidermonkey -m -c\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ccode\u003e-p spidermonkey\u003c/code\u003e option tells Terser that all input files are not\nJavaScript, but JS code described in SpiderMonkey AST in JSON. Therefore we\ndon't use our own parser in this case, but just transform that AST into our\ninternal AST.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ccode\u003espidermonkey\u003c/code\u003e is also available in \u003ccode\u003eminify\u003c/code\u003e as \u003ccode\u003eparse\u003c/code\u003e and \u003ccode\u003eformat\u003c/code\u003e options to\naccept and/or produce a spidermonkey AST.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eUse Acorn for parsing\u003c/h3\u003e\u003ca id=\"user-content-use-acorn-for-parsing\" class=\"anchor\" aria-label=\"Permalink: Use Acorn for parsing\" href=\"#use-acorn-for-parsing\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eMore for fun, I added the \u003ccode\u003e-p acorn\u003c/code\u003e option which will use Acorn to do all\nthe parsing. If you pass this option, Terser will \u003ccode\u003erequire(\"acorn\")\u003c/code\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eAcorn is really fast (e.g. 250ms instead of 380ms on some 650K code), but\nconverting the SpiderMonkey tree that Acorn produces takes another 150ms so\nin total it's a bit more than just using Terser's own parser.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eTerser Fast Minify Mode\u003c/h3\u003e\u003ca id=\"user-content-terser-fast-minify-mode\" class=\"anchor\" aria-label=\"Permalink: Terser Fast Minify Mode\" href=\"#terser-fast-minify-mode\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIt's not well known, but whitespace removal and symbol mangling accounts\nfor 95% of the size reduction in minified code for most JavaScript - not\nelaborate code transforms. One can simply disable \u003ccode\u003ecompress\u003c/code\u003e to speed up\nTerser builds by 3 to 4 times.\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ed3.js\u003c/th\u003e\n\u003cth align=\"right\"\u003esize\u003c/th\u003e\n\u003cth align=\"right\"\u003egzip size\u003c/th\u003e\n\u003cth align=\"right\"\u003etime (s)\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eoriginal\u003c/td\u003e\n\u003ctd align=\"right\"\u003e451,131\u003c/td\u003e\n\u003ctd align=\"right\"\u003e108,733\u003c/td\u003e\n\u003ctd align=\"right\"\u003e-\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eterser@3.7.5 mangle=false, compress=false\u003c/td\u003e\n\u003ctd align=\"right\"\u003e316,600\u003c/td\u003e\n\u003ctd align=\"right\"\u003e85,245\u003c/td\u003e\n\u003ctd align=\"right\"\u003e0.82\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eterser@3.7.5 mangle=true, compress=false\u003c/td\u003e\n\u003ctd align=\"right\"\u003e220,216\u003c/td\u003e\n\u003ctd align=\"right\"\u003e72,730\u003c/td\u003e\n\u003ctd align=\"right\"\u003e1.45\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eterser@3.7.5 mangle=true, compress=true\u003c/td\u003e\n\u003ctd align=\"right\"\u003e212,046\u003c/td\u003e\n\u003ctd align=\"right\"\u003e70,954\u003c/td\u003e\n\u003ctd align=\"right\"\u003e5.87\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ebabili@0.1.4\u003c/td\u003e\n\u003ctd align=\"right\"\u003e210,713\u003c/td\u003e\n\u003ctd align=\"right\"\u003e72,140\u003c/td\u003e\n\u003ctd align=\"right\"\u003e12.64\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ebabel-minify@0.4.3\u003c/td\u003e\n\u003ctd align=\"right\"\u003e210,321\u003c/td\u003e\n\u003ctd align=\"right\"\u003e72,242\u003c/td\u003e\n\u003ctd align=\"right\"\u003e48.67\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ebabel-minify@0.5.0-alpha.01eac1c3\u003c/td\u003e\n\u003ctd align=\"right\"\u003e210,421\u003c/td\u003e\n\u003ctd align=\"right\"\u003e72,238\u003c/td\u003e\n\u003ctd align=\"right\"\u003e14.17\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003cp dir=\"auto\"\u003eTo enable fast minify mode from the CLI use:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"terser file.js -m\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eterser file.js -m\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo enable fast minify mode with the API use:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"await minify(code, { compress: false, mangle: true });\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eawait\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eminify\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecode\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003ecompress\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003efalse\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003emangle\u003c/span\u003e: \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch4 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eSource maps and debugging\u003c/h4\u003e\u003ca id=\"user-content-source-maps-and-debugging\" class=\"anchor\" aria-label=\"Permalink: Source maps and debugging\" href=\"#source-maps-and-debugging\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eVarious \u003ccode\u003ecompress\u003c/code\u003e transforms that simplify, rearrange, inline and remove code\nare known to have an adverse effect on debugging with source maps. This is\nexpected as code is optimized and mappings are often simply not possible as\nsome code no longer exists. For highest fidelity in source map debugging\ndisable the \u003ccode\u003ecompress\u003c/code\u003e option and just use \u003ccode\u003emangle\u003c/code\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eWhen debugging, make sure you enable the \u003cstrong\u003e\"map scopes\"\u003c/strong\u003e feature to map mangled variable names back to their original names.\u003cbr\u003e\nWithout this, all variable values will be \u003ccode\u003eundefined\u003c/code\u003e. See \u003ca class=\"issue-link js-issue-link\" data-error-text=\"Failed to load title\" data-id=\"1656067874\" data-permission-text=\"Title is private\" data-url=\"https://github.com/terser/terser/issues/1367\" data-hovercard-type=\"issue\" data-hovercard-url=\"/terser/terser/issues/1367/hovercard\" href=\"https://github.com/terser/terser/issues/1367\"\u003e#1367\u003c/a\u003e for more details.\n\u003cbr\u003e\u003cbr\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://user-images.githubusercontent.com/27283110/230441652-ac5cf6b0-5dc5-4ffc-9d8b-bd02875484f4.png\"\u003e\u003cimg src=\"https://user-images.githubusercontent.com/27283110/230441652-ac5cf6b0-5dc5-4ffc-9d8b-bd02875484f4.png\" alt=\"image\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCompiler assumptions\u003c/h3\u003e\u003ca id=\"user-content-compiler-assumptions\" class=\"anchor\" aria-label=\"Permalink: Compiler assumptions\" href=\"#compiler-assumptions\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo allow for better optimizations, the compiler makes various assumptions:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003e.toString()\u003c/code\u003e and \u003ccode\u003e.valueOf()\u003c/code\u003e don't have side effects, and for built-in\nobjects they have not been overridden.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003eundefined\u003c/code\u003e, \u003ccode\u003eNaN\u003c/code\u003e and \u003ccode\u003eInfinity\u003c/code\u003e have not been externally redefined.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003earguments.callee\u003c/code\u003e, \u003ccode\u003earguments.caller\u003c/code\u003e and \u003ccode\u003eFunction.prototype.caller\u003c/code\u003e are not used.\u003c/li\u003e\n\u003cli\u003eThe code doesn't expect the contents of \u003ccode\u003eFunction.prototype.toString()\u003c/code\u003e or\n\u003ccode\u003eError.prototype.stack\u003c/code\u003e to be anything in particular.\u003c/li\u003e\n\u003cli\u003eGetting and setting properties on a plain object does not cause other side effects\n(using \u003ccode\u003e.watch()\u003c/code\u003e or \u003ccode\u003eProxy\u003c/code\u003e).\u003c/li\u003e\n\u003cli\u003eObject properties can be added, removed and modified (not prevented with\n\u003ccode\u003eObject.defineProperty()\u003c/code\u003e, \u003ccode\u003eObject.defineProperties()\u003c/code\u003e, \u003ccode\u003eObject.freeze()\u003c/code\u003e,\n\u003ccode\u003eObject.preventExtensions()\u003c/code\u003e or \u003ccode\u003eObject.seal()\u003c/code\u003e).\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003edocument.all\u003c/code\u003e is not \u003ccode\u003e== null\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003eAssigning properties to a class doesn't have side effects and does not throw.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eBuild Tools and Adaptors using Terser\u003c/h3\u003e\u003ca id=\"user-content-build-tools-and-adaptors-using-terser\" class=\"anchor\" aria-label=\"Permalink: Build Tools and Adaptors using Terser\" href=\"#build-tools-and-adaptors-using-terser\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://www.npmjs.com/browse/depended/terser\" rel=\"nofollow\"\u003ehttps://www.npmjs.com/browse/depended/terser\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eReplacing \u003ccode\u003euglify-es\u003c/code\u003e with \u003ccode\u003eterser\u003c/code\u003e in a project using \u003ccode\u003eyarn\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-replacing-uglify-es-with-terser-in-a-project-using-yarn\" class=\"anchor\" aria-label=\"Permalink: Replacing uglify-es with terser in a project using yarn\" href=\"#replacing-uglify-es-with-terser-in-a-project-using-yarn\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eA number of JS bundlers and uglify wrappers are still using buggy versions\nof \u003ccode\u003euglify-es\u003c/code\u003e and have not yet upgraded to \u003ccode\u003eterser\u003c/code\u003e. If you are using \u003ccode\u003eyarn\u003c/code\u003e\nyou can add the following alias to your project's \u003ccode\u003epackage.json\u003c/code\u003e file:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" \u0026quot;resolutions\u0026quot;: {\n \u0026quot;uglify-es\u0026quot;: \u0026quot;npm:terser\u0026quot;\n }\"\u003e\u003cpre\u003e \u003cspan class=\"pl-s\"\u003e\"resolutions\"\u003c/span\u003e: \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-s\"\u003e\"uglify-es\"\u003c/span\u003e: \u003cspan class=\"pl-s\"\u003e\"npm:terser\"\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eto use \u003ccode\u003eterser\u003c/code\u003e instead of \u003ccode\u003euglify-es\u003c/code\u003e in all deeply nested dependencies\nwithout changing any code.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eNote: for this change to take effect you must run the following commands\nto remove the existing \u003ccode\u003eyarn\u003c/code\u003e lock file and reinstall all packages:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"$ rm -rf node_modules yarn.lock\n$ yarn\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003e$ rm -rf node_modules yarn.lock\n$ yarn\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch1 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eReporting issues\u003c/h1\u003e\u003ca id=\"user-content-reporting-issues\" class=\"anchor\" aria-label=\"Permalink: Reporting issues\" href=\"#reporting-issues\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eA minimal, reproducible example\u003c/h2\u003e\u003ca id=\"user-content-a-minimal-reproducible-example\" class=\"anchor\" aria-label=\"Permalink: A minimal, reproducible example\" href=\"#a-minimal-reproducible-example\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou're expected to provide a [minimal reproducible example] of input code that will demonstrate your issue.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eTo get to this example, you can remove bits of your code and stop if your issue ceases to reproduce.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eObtaining the source code given to Terser\u003c/h2\u003e\u003ca id=\"user-content-obtaining-the-source-code-given-to-terser\" class=\"anchor\" aria-label=\"Permalink: Obtaining the source code given to Terser\" href=\"#obtaining-the-source-code-given-to-terser\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eBecause users often don't control the call to \u003ccode\u003eawait minify()\u003c/code\u003e or its arguments, Terser provides a \u003ccode\u003eTERSER_DEBUG_DIR\u003c/code\u003e environment variable to make terser output some debug logs.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThese logs will contain the input code and options of each \u003ccode\u003eminify()\u003c/code\u003e call.\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"TERSER_DEBUG_DIR=/tmp/terser-log-dir command-that-uses-terser\nls /tmp/terser-log-dir\nterser-debug-123456.log\"\u003e\u003cpre\u003eTERSER_DEBUG_DIR=/tmp/terser-log-dir command-that-uses-terser\nls /tmp/terser-log-dir\nterser-debug-123456.log\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIf you're not sure how to set an environment variable on your shell (the above example works in bash), you can try using cross-env:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"\u0026gt; npx cross-env TERSER_DEBUG_DIR=/path/to/logs command-that-uses-terser\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003e\u0026gt; npx cross-env TERSER_DEBUG_DIR=/path/to/logs command-that-uses-terser\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eStack traces\u003c/h2\u003e\u003ca id=\"user-content-stack-traces\" class=\"anchor\" aria-label=\"Permalink: Stack traces\" href=\"#stack-traces\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIn the terser CLI we use \u003ca href=\"https://npmjs.com/source-map-support\" rel=\"nofollow\"\u003esource-map-support\u003c/a\u003e to produce good error stacks. In your own app, you're expected to enable source-map-support (read their docs) to have nice stack traces that will help you write good issues.\u003c/p\u003e\n\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch1 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eREADME.md Patrons:\u003c/h1\u003e\u003ca id=\"user-content-readmemd-patrons\" class=\"anchor\" aria-label=\"Permalink: README.md Patrons:\" href=\"#readmemd-patrons\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003enote\u003c/em\u003e: \u003cs\u003eYou can support this project on patreon: [link]\u003c/s\u003e \u003cstrong\u003eThe Terser Patreon is shutting down in favor of opencollective\u003c/strong\u003e. Check out \u003ca href=\"https://github.com/terser/terser/blob/master/PATRONS.md\"\u003ePATRONS.md\u003c/a\u003e for our first-tier patrons.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThese are the second-tier patrons. Great thanks for your support!\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eCKEditor \u003ca target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://camo.githubusercontent.com/242a7da11b383a20e29526e476a8c7c06e62d8f8a11ba313b5363f64c26bb317/68747470733a2f2f6331302e70617472656f6e75736572636f6e74656e742e636f6d2f332f65794a6f496a6f784d444173496e63694f6a45774d48302533442f70617472656f6e2d6d656469612f702f757365722f31353435323237382f66383534386463663438643734303631393037316538643631343435393238302f313f746f6b656e2d74696d653d3231343539313638303026746f6b656e2d686173683d5349513534506849504876334d3743567a394c7853385f387634734f77344833303448615873586a384d4d253344\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/242a7da11b383a20e29526e476a8c7c06e62d8f8a11ba313b5363f64c26bb317/68747470733a2f2f6331302e70617472656f6e75736572636f6e74656e742e636f6d2f332f65794a6f496a6f784d444173496e63694f6a45774d48302533442f70617472656f6e2d6d656469612f702f757365722f31353435323237382f66383534386463663438643734303631393037316538643631343435393238302f313f746f6b656e2d74696d653d3231343539313638303026746f6b656e2d686173683d5349513534506849504876334d3743567a394c7853385f387634734f77344833303448615873586a384d4d253344\" alt=\"\" data-canonical-src=\"https://c10.patreonusercontent.com/3/eyJoIjoxMDAsInciOjEwMH0%3D/patreon-media/p/user/15452278/f8548dcf48d740619071e8d614459280/1?token-time=2145916800\u0026amp;token-hash=SIQ54PhIPHv3M7CVz9LxS8_8v4sOw4H304HaXsXj8MM%3D\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e38elements \u003ca target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://camo.githubusercontent.com/2ad2bc8899bb7bcd268e1fddef0505e37cb8d9fcaf21f22f47aa08c0be5ea359/68747470733a2f2f6331302e70617472656f6e75736572636f6e74656e742e636f6d2f332f65794a33496a6f794d4442392f70617472656f6e2d6d656469612f702f757365722f31323530313834342f38386537666335646436326434356336613536323635333362626434386366622f313f746f6b656e2d74696d653d3231343539313638303026746f6b656e2d686173683d63334173513554304951576963307a4b784648752d624747514a6b585146766166764a3462506572465234253344\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/2ad2bc8899bb7bcd268e1fddef0505e37cb8d9fcaf21f22f47aa08c0be5ea359/68747470733a2f2f6331302e70617472656f6e75736572636f6e74656e742e636f6d2f332f65794a33496a6f794d4442392f70617472656f6e2d6d656469612f702f757365722f31323530313834342f38386537666335646436326434356336613536323635333362626434386366622f313f746f6b656e2d74696d653d3231343539313638303026746f6b656e2d686173683d63334173513554304951576963307a4b784648752d624747514a6b585146766166764a3462506572465234253344\" alt=\"\" data-canonical-src=\"https://c10.patreonusercontent.com/3/eyJ3IjoyMDB9/patreon-media/p/user/12501844/88e7fc5dd62d45c6a5626533bbd48cfb/1?token-time=2145916800\u0026amp;token-hash=c3AsQ5T0IQWic0zKxFHu-bGGQJkXQFvafvJ4bPerFR4%3D\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eContributors\u003c/h2\u003e\u003ca id=\"user-content-contributors\" class=\"anchor\" aria-label=\"Permalink: Contributors\" href=\"#contributors\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCode Contributors\u003c/h3\u003e\u003ca id=\"user-content-code-contributors\" class=\"anchor\" aria-label=\"Permalink: Code Contributors\" href=\"#code-contributors\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThis project exists thanks to all the people who contribute. [\u003ca href=\"/terser/terser/blob/master/CONTRIBUTING.md\"\u003eContribute\u003c/a\u003e].\n\u003ca href=\"https://github.com/terser/terser/graphs/contributors\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/18e7d502b3e849d28473927f589e1172b168abb8a38771539f96fdd96ffb8aad/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f636f6e7472696275746f72732e7376673f77696474683d38393026627574746f6e3d66616c7365\" data-canonical-src=\"https://opencollective.com/terser/contributors.svg?width=890\u0026amp;button=false\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eFinancial Contributors\u003c/h3\u003e\u003ca id=\"user-content-financial-contributors\" class=\"anchor\" aria-label=\"Permalink: Financial Contributors\" href=\"#financial-contributors\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eBecome a financial contributor and help us sustain our community. [\u003ca href=\"https://opencollective.com/terser/contribute\" rel=\"nofollow\"\u003eContribute\u003c/a\u003e]\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch4 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eIndividuals\u003c/h4\u003e\u003ca id=\"user-content-individuals\" class=\"anchor\" aria-label=\"Permalink: Individuals\" href=\"#individuals\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://opencollective.com/terser\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/568b5abb472e904a54787148c74684a458ad7adb4964f6123e10d17c581a1dfb/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f696e646976696475616c732e7376673f77696474683d383930\" data-canonical-src=\"https://opencollective.com/terser/individuals.svg?width=890\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch4 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eOrganizations\u003c/h4\u003e\u003ca id=\"user-content-organizations\" class=\"anchor\" aria-label=\"Permalink: Organizations\" href=\"#organizations\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eSupport this project with your organization. Your logo will show up here with a link to your website. [\u003ca href=\"https://opencollective.com/terser/contribute\" rel=\"nofollow\"\u003eContribute\u003c/a\u003e]\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://opencollective.com/terser/organization/0/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/4fdf2b463741f87db5c3f0216c31de393bd9a45615bee326d1d2fd3e3619a5a2/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f302f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/0/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser/organization/1/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/5c471ca02d56b35d1e5ff961425af41772eedc3f0a0685753ae328bbd3707f22/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f312f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/1/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser/organization/2/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/1cb7250e7656c0d1f4c639978d72d9cd707ee7568e8d7a0be5c886561f20da98/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f322f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/2/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser/organization/3/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/c985d8ea970e3d059a99da70f569f27c4b17dcf494e7a14c0f07279a03e03c3d/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f332f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/3/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser/organization/4/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/df5af7214926c709e0e06b743b1658f40ec7ead7bc1b59677d5f488f7a64596e/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f342f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/4/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser/organization/5/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/0b35c6fcdd60d35d08bc88b740e2016bd6f21f07aeb8d8342c192a1eb141c405/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f352f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/5/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser/organization/6/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/b3e55932975ec6d9a5997679ed4b82e68129d75d4980a278b7955b3a880789d9/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f362f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/6/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser/organization/7/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/98cc5f2c6e913b2d8001b719efda1f56083cf7106576fc161085966c6ce9e6e5/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f372f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/7/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser/organization/8/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/18ec33e472ab228cfd6a44fa30aaf1ab2ca1468d045b6556a6678a21d5b857e1/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f382f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/8/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opencollective.com/terser/organization/9/website\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/b19319543ecdf5894c40c5921cecac5914618b63e9fe720a33157b0944218111/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f392f6176617461722e737667\" data-canonical-src=\"https://opencollective.com/terser/organization/9/avatar.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003c/article\u003e","loaded":true,"timedOut":false,"errorMessage":null,"headerInfo":{"toc":[{"level":1,"text":"","anchor":"","htmlText":""},{"level":2,"text":"Why choose terser?","anchor":"why-choose-terser","htmlText":"Why choose terser?"},{"level":2,"text":"Install","anchor":"install","htmlText":"Install"},{"level":1,"text":"Command line usage","anchor":"command-line-usage","htmlText":"Command line usage"},{"level":3,"text":"Command line options","anchor":"command-line-options","htmlText":"Command line options"},{"level":2,"text":"CLI source map options","anchor":"cli-source-map-options","htmlText":"CLI source map options"},{"level":3,"text":"Composed source map","anchor":"composed-source-map","htmlText":"Composed source map"},{"level":2,"text":"CLI compress options","anchor":"cli-compress-options","htmlText":"CLI compress options"},{"level":2,"text":"CLI mangle options","anchor":"cli-mangle-options","htmlText":"CLI mangle options"},{"level":3,"text":"CLI mangling property names (--mangle-props)","anchor":"cli-mangling-property-names---mangle-props","htmlText":"CLI mangling property names (--mangle-props)"},{"level":3,"text":"Mangling unquoted names (--mangle-props keep_quoted)","anchor":"mangling-unquoted-names---mangle-props-keep_quoted","htmlText":"Mangling unquoted names (--mangle-props keep_quoted)"},{"level":3,"text":"Debugging property name mangling","anchor":"debugging-property-name-mangling","htmlText":"Debugging property name mangling"},{"level":1,"text":"API Reference","anchor":"api-reference","htmlText":"API Reference"},{"level":2,"text":"Minify options","anchor":"minify-options","htmlText":"Minify options"},{"level":2,"text":"Minify options structure","anchor":"minify-options-structure","htmlText":"Minify options structure"},{"level":3,"text":"Source map options","anchor":"source-map-options","htmlText":"Source map options"},{"level":2,"text":"Parse options","anchor":"parse-options","htmlText":"Parse options"},{"level":2,"text":"Compress options","anchor":"compress-options","htmlText":"Compress options"},{"level":2,"text":"Mangle options","anchor":"mangle-options","htmlText":"Mangle options"},{"level":3,"text":"Mangle properties options","anchor":"mangle-properties-options","htmlText":"Mangle properties options"},{"level":2,"text":"Format options","anchor":"format-options","htmlText":"Format options"},{"level":1,"text":"Miscellaneous","anchor":"miscellaneous","htmlText":"Miscellaneous"},{"level":3,"text":"Keeping copyright notices or other comments","anchor":"keeping-copyright-notices-or-other-comments","htmlText":"Keeping copyright notices or other comments"},{"level":3,"text":"The unsafecompress option","anchor":"the-unsafe-compress-option","htmlText":"The unsafecompress option"},{"level":3,"text":"Conditional compilation","anchor":"conditional-compilation","htmlText":"Conditional compilation"},{"level":3,"text":"Conditional compilation API","anchor":"conditional-compilation-api","htmlText":"Conditional compilation API"},{"level":3,"text":"Annotations","anchor":"annotations","htmlText":"Annotations"},{"level":3,"text":"ESTree / SpiderMonkey AST","anchor":"estree--spidermonkey-ast","htmlText":"ESTree / SpiderMonkey AST"},{"level":3,"text":"Use Acorn for parsing","anchor":"use-acorn-for-parsing","htmlText":"Use Acorn for parsing"},{"level":3,"text":"Terser Fast Minify Mode","anchor":"terser-fast-minify-mode","htmlText":"Terser Fast Minify Mode"},{"level":4,"text":"Source maps and debugging","anchor":"source-maps-and-debugging","htmlText":"Source maps and debugging"},{"level":3,"text":"Compiler assumptions","anchor":"compiler-assumptions","htmlText":"Compiler assumptions"},{"level":3,"text":"Build Tools and Adaptors using Terser","anchor":"build-tools-and-adaptors-using-terser","htmlText":"Build Tools and Adaptors using Terser"},{"level":3,"text":"Replacing uglify-es with terser in a project using yarn","anchor":"replacing-uglify-es-with-terser-in-a-project-using-yarn","htmlText":"Replacing uglify-es with terser in a project using yarn"},{"level":1,"text":"Reporting issues","anchor":"reporting-issues","htmlText":"Reporting issues"},{"level":2,"text":"A minimal, reproducible example","anchor":"a-minimal-reproducible-example","htmlText":"A minimal, reproducible example"},{"level":2,"text":"Obtaining the source code given to Terser","anchor":"obtaining-the-source-code-given-to-terser","htmlText":"Obtaining the source code given to Terser"},{"level":2,"text":"Stack traces","anchor":"stack-traces","htmlText":"Stack traces"},{"level":1,"text":"README.md Patrons:","anchor":"readmemd-patrons","htmlText":"README.md Patrons:"},{"level":2,"text":"Contributors","anchor":"contributors","htmlText":"Contributors"},{"level":3,"text":"Code Contributors","anchor":"code-contributors","htmlText":"Code Contributors"},{"level":3,"text":"Financial Contributors","anchor":"financial-contributors","htmlText":"Financial Contributors"},{"level":4,"text":"Individuals","anchor":"individuals","htmlText":"Individuals"},{"level":4,"text":"Organizations","anchor":"organizations","htmlText":"Organizations"}],"siteNavLoginPath":"/login?return_to=https%3A%2F%2Fgithub.com%2Fterser%2Fterser"}},{"displayName":"LICENSE","repoName":"terser","refName":"master","path":"LICENSE","preferredFileType":"license","tabName":"License","richText":null,"loaded":false,"timedOut":false,"errorMessage":null,"headerInfo":{"toc":null,"siteNavLoginPath":"/login?return_to=https%3A%2F%2Fgithub.com%2Fterser%2Fterser"}},{"displayName":"SECURITY.md","repoName":"terser","refName":"master","path":"SECURITY.md","preferredFileType":"security","tabName":"Security","richText":null,"loaded":false,"timedOut":false,"errorMessage":null,"headerInfo":{"toc":null,"siteNavLoginPath":"/login?return_to=https%3A%2F%2Fgithub.com%2Fterser%2Fterser"}}],"overviewFilesProcessingTime":0}},"appPayload":{"helpUrl":"https://docs.github.com","findFileWorkerPath":"/assets-cdn/worker/find-file-worker-7d7eb7c71814.js","findInFileWorkerPath":"/assets-cdn/worker/find-in-file-worker-708ec8ade250.js","githubDevUrl":null,"enabled_features":{"copilot_workspace":null,"code_nav_ui_events":false,"overview_shared_code_dropdown_button":true,"react_blob_overlay":false,"accessible_code_button":true,"github_models_repo_integration":false}}}}</script> <div data-target="react-partial.reactRoot"><style data-styled="true" data-styled-version="5.3.11">.iVEunk{margin-top:16px;margin-bottom:16px;}/*!sc*/ .jzuOtQ{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;}/*!sc*/ .bGojzy{margin-bottom:0;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;row-gap:16px;}/*!sc*/ .iNSVHo{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;-webkit-box-flex:1;-webkit-flex-grow:1;-ms-flex-positive:1;flex-grow:1;padding-bottom:16px;padding-top:8px;}/*!sc*/ .bVgnfw{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;gap:8px;}/*!sc*/ @media screen and (max-width:320px){.bVgnfw{-webkit-box-flex:1;-webkit-flex-grow:1;-ms-flex-positive:1;flex-grow:1;}}/*!sc*/ .CEgMp{position:relative;}/*!sc*/ @media screen and (max-width:380px){.CEgMp .ref-selector-button-text-container{max-width:80px;}}/*!sc*/ @media screen and (max-width:320px){.CEgMp{-webkit-box-flex:1;-webkit-flex-grow:1;-ms-flex-positive:1;flex-grow:1;}.CEgMp .overview-ref-selector{width:100%;}.CEgMp .overview-ref-selector > span{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-pack:start;-webkit-justify-content:flex-start;-ms-flex-pack:start;justify-content:flex-start;}.CEgMp .overview-ref-selector > span > span[data-component="text"]{-webkit-box-flex:1;-webkit-flex-grow:1;-ms-flex-positive:1;flex-grow:1;}}/*!sc*/ .gMOVLe[data-size="medium"]{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;min-width:0;}/*!sc*/ .gMOVLe[data-size="medium"] svg{color:var(--fgColor-muted,var(--color-fg-muted,#656d76));}/*!sc*/ .gMOVLe[data-size="medium"] > span{width:inherit;}/*!sc*/ .gUkoLg{-webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;}/*!sc*/ .bZBlpz{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;width:100%;}/*!sc*/ .lhTYNA{margin-right:4px;color:var(--fgColor-muted,var(--color-fg-muted,#656d76));}/*!sc*/ .ffLUq{font-size:14px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}/*!sc*/ .bmcJak{min-width:0;}/*!sc*/ .fLXEGX{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;}/*!sc*/ @media screen and (max-width:1079px){.fLXEGX{display:none;}}/*!sc*/ .lmSMZJ[data-size="medium"]{color:var(--fgColor-muted,var(--color-fg-muted,#656d76));padding-left:4px;padding-right:4px;}/*!sc*/ .lmSMZJ[data-size="medium"] span[data-component="leadingVisual"]{margin-right:4px !important;}/*!sc*/ .dqfxud{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;}/*!sc*/ @media screen and (min-width:1080px){.dqfxud{display:none;}}/*!sc*/ @media screen and (max-width:543px){.dqfxud{display:none;}}/*!sc*/ .fGwBZA[data-size="medium"][data-no-visuals]{color:var(--fgColor-muted,var(--color-fg-muted,#656d76));}/*!sc*/ .jxTzTd{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;padding-left:8px;gap:8px;}/*!sc*/ .gqqBXN{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;gap:8px;}/*!sc*/ @media screen and (max-width:543px){.gqqBXN{display:none;}}/*!sc*/ .dzXgxt{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;}/*!sc*/ @media screen and (max-width:1011px){.dzXgxt{display:none;}}/*!sc*/ .iWFGlI{margin-left:8px;margin-right:8px;margin:0;}/*!sc*/ .vcvyP{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;min-width:160px;}/*!sc*/ .YUPas{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;}/*!sc*/ @media screen and (min-width:1012px){.YUPas{display:none;}}/*!sc*/ .izFOf{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;}/*!sc*/ @media screen and (min-width:544px){.izFOf{display:none;}}/*!sc*/ .vIPPs{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;gap:16px;}/*!sc*/ .fdROMU{width:100%;border-collapse:separate;border-spacing:0;border:1px solid;border-color:var(--borderColor-default,var(--color-border-default,#d0d7de));border-radius:6px;table-layout:fixed;overflow:unset;}/*!sc*/ .jGKpsv{height:0px;line-height:0px;}/*!sc*/ .jGKpsv tr{height:0px;font-size:0px;}/*!sc*/ .jdgHnn{padding:16px;color:var(--fgColor-muted,var(--color-fg-muted,#656d76));font-size:12px;text-align:left;height:40px;}/*!sc*/ .jdgHnn th{padding-left:16px;background-color:var(--bgColor-muted,var(--color-canvas-subtle,#f6f8fa));}/*!sc*/ .bQivRW{width:100%;border-top-left-radius:6px;}/*!sc*/ @media screen and (min-width:544px){.bQivRW{display:none;}}/*!sc*/ .ldkMIO{width:40%;border-top-left-radius:6px;}/*!sc*/ @media screen and (max-width:543px){.ldkMIO{display:none;}}/*!sc*/ .jMbWeI{text-align:right;padding-right:16px;width:136px;border-top-right-radius:6px;}/*!sc*/ .gpqjiB{color:var(--fgColor-muted,var(--color-fg-muted,#656d76));font-size:12px;height:40px;}/*!sc*/ .dzCJzi{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;-webkit-flex-wrap:wrap;-ms-flex-wrap:wrap;flex-wrap:wrap;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;gap:8px;min-width:273px;padding:8px;}/*!sc*/ @media screen and (min-width:544px){.dzCJzi{-webkit-flex-wrap:nowrap;-ms-flex-wrap:nowrap;flex-wrap:nowrap;}}/*!sc*/ .eNCcrz{text-align:center;vertical-align:center;height:40px;border-top:1px solid;border-color:var(--borderColor-default,var(--color-border-default,#d0d7de));}/*!sc*/ .bHTcCe{border-top:1px solid var(--borderColor-default,var(--color-border-default));cursor:pointer;}/*!sc*/ .csrIcr{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-flex:1;-webkit-flex-grow:1;-ms-flex-positive:1;flex-grow:1;gap:16px;}/*!sc*/ .bUQNHB{border:1px solid;border-color:var(--borderColor-default,var(--color-border-default,#d0d7de));border-radius:6px;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;-webkit-box-flex:1;-webkit-flex-grow:1;-ms-flex-positive:1;flex-grow:1;}/*!sc*/ @media screen and (max-width:543px){.bUQNHB{margin-left:-16px;margin-right:-16px;max-width:calc(100% + 32px);}}/*!sc*/ @media screen and (min-width:544px){.bUQNHB{max-width:100%;}}/*!sc*/ .jPdcfu{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;border-bottom:1px solid;border-bottom-color:var(--borderColor-default,var(--color-border-default,#d0d7de));-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;padding-right:8px;position:-webkit-sticky;position:sticky;top:0;background-color:var(--bgColor-default,var(--color-canvas-default,#ffffff));z-index:1;border-top-left-radius:6px;border-top-right-radius:6px;}/*!sc*/ .iphEWz{-webkit-box-flex:1;-webkit-flex-grow:1;-ms-flex-positive:1;flex-grow:1;border-bottom:none;max-width:100%;padding-left:8px;padding-right:8px;}/*!sc*/ .hUCRAk{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;}/*!sc*/ .cwoBXV[data-size="medium"]{color:var(--fgColor-muted,var(--color-fg-subtle,#6e7781));padding-left:8px;padding-right:8px;}/*!sc*/ .QkQOb{padding:32px;overflow:auto;}/*!sc*/ data-styled.g1[id="Box-sc-g0xbh4-0"]{content:"iVEunk,jzuOtQ,bGojzy,iNSVHo,bVgnfw,CEgMp,gMOVLe,gUkoLg,bZBlpz,lhTYNA,ffLUq,bmcJak,fLXEGX,lmSMZJ,dqfxud,fGwBZA,jxTzTd,gqqBXN,dzXgxt,iWFGlI,vcvyP,YUPas,izFOf,vIPPs,fdROMU,jGKpsv,jdgHnn,bQivRW,ldkMIO,jMbWeI,gpqjiB,dzCJzi,eNCcrz,bHTcCe,csrIcr,bUQNHB,jPdcfu,iphEWz,hUCRAk,cwoBXV,QkQOb,"}/*!sc*/ .brGdpi{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;-webkit-clip:rect(0,0,0,0);clip:rect(0,0,0,0);white-space:nowrap;border-width:0;}/*!sc*/ data-styled.g5[id="_VisuallyHidden__VisuallyHidden-sc-11jhm7a-0"]{content:"brGdpi,"}/*!sc*/ .hWlpPn{position:relative;display:inline-block;}/*!sc*/ .hWlpPn::after{position:absolute;z-index:1000000;display:none;padding:0.5em 0.75em;font:normal normal 11px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";-webkit-font-smoothing:subpixel-antialiased;color:var(--tooltip-fgColor,var(--fgColor-onEmphasis,var(--color-fg-on-emphasis,#ffffff)));text-align:center;-webkit-text-decoration:none;text-decoration:none;text-shadow:none;text-transform:none;-webkit-letter-spacing:normal;-moz-letter-spacing:normal;-ms-letter-spacing:normal;letter-spacing:normal;word-wrap:break-word;white-space:pre;pointer-events:none;content:attr(aria-label);background:var(--tooltip-bgColor,var(--bgColor-emphasis,var(--color-neutral-emphasis-plus,#24292f)));border-radius:6px;opacity:0;}/*!sc*/ @-webkit-keyframes tooltip-appear{from{opacity:0;}to{opacity:1;}}/*!sc*/ @keyframes tooltip-appear{from{opacity:0;}to{opacity:1;}}/*!sc*/ .hWlpPn:hover::after,.hWlpPn:active::after,.hWlpPn:focus::after,.hWlpPn:focus-within::after{display:inline-block;-webkit-text-decoration:none;text-decoration:none;-webkit-animation-name:tooltip-appear;animation-name:tooltip-appear;-webkit-animation-duration:0.1s;animation-duration:0.1s;-webkit-animation-fill-mode:forwards;animation-fill-mode:forwards;-webkit-animation-timing-function:ease-in;animation-timing-function:ease-in;-webkit-animation-delay:0s;animation-delay:0s;}/*!sc*/ .hWlpPn.tooltipped-no-delay:hover::after,.hWlpPn.tooltipped-no-delay:active::after,.hWlpPn.tooltipped-no-delay:focus::after,.hWlpPn.tooltipped-no-delay:focus-within::after{-webkit-animation-delay:0s;animation-delay:0s;}/*!sc*/ .hWlpPn.tooltipped-multiline:hover::after,.hWlpPn.tooltipped-multiline:active::after,.hWlpPn.tooltipped-multiline:focus::after,.hWlpPn.tooltipped-multiline:focus-within::after{display:table-cell;}/*!sc*/ .hWlpPn.tooltipped-s::after,.hWlpPn.tooltipped-se::after,.hWlpPn.tooltipped-sw::after{top:100%;right:50%;margin-top:6px;}/*!sc*/ .hWlpPn.tooltipped-se::after{right:auto;left:50%;margin-left:-16px;}/*!sc*/ .hWlpPn.tooltipped-sw::after{margin-right:-16px;}/*!sc*/ .hWlpPn.tooltipped-n::after,.hWlpPn.tooltipped-ne::after,.hWlpPn.tooltipped-nw::after{right:50%;bottom:100%;margin-bottom:6px;}/*!sc*/ .hWlpPn.tooltipped-ne::after{right:auto;left:50%;margin-left:-16px;}/*!sc*/ .hWlpPn.tooltipped-nw::after{margin-right:-16px;}/*!sc*/ .hWlpPn.tooltipped-s::after,.hWlpPn.tooltipped-n::after{-webkit-transform:translateX(50%);-ms-transform:translateX(50%);transform:translateX(50%);}/*!sc*/ .hWlpPn.tooltipped-w::after{right:100%;bottom:50%;margin-right:6px;-webkit-transform:translateY(50%);-ms-transform:translateY(50%);transform:translateY(50%);}/*!sc*/ .hWlpPn.tooltipped-e::after{bottom:50%;left:100%;margin-left:6px;-webkit-transform:translateY(50%);-ms-transform:translateY(50%);transform:translateY(50%);}/*!sc*/ .hWlpPn.tooltipped-multiline::after{width:-webkit-max-content;width:-moz-max-content;width:max-content;max-width:250px;word-wrap:break-word;white-space:pre-line;border-collapse:separate;}/*!sc*/ .hWlpPn.tooltipped-multiline.tooltipped-s::after,.hWlpPn.tooltipped-multiline.tooltipped-n::after{right:auto;left:50%;-webkit-transform:translateX(-50%);-ms-transform:translateX(-50%);transform:translateX(-50%);}/*!sc*/ .hWlpPn.tooltipped-multiline.tooltipped-w::after,.hWlpPn.tooltipped-multiline.tooltipped-e::after{right:100%;}/*!sc*/ .hWlpPn.tooltipped-align-right-2::after{right:0;margin-right:0;}/*!sc*/ .hWlpPn.tooltipped-align-left-2::after{left:0;margin-left:0;}/*!sc*/ data-styled.g16[id="Tooltip__TooltipBase-sc-17tf59c-0"]{content:"hWlpPn,"}/*!sc*/ .liVpTx{display:inline-block;overflow:hidden;text-overflow:ellipsis;vertical-align:top;white-space:nowrap;max-width:125px;}/*!sc*/ data-styled.g18[id="Truncate__StyledTruncate-sc-23o1d2-0"]{content:"liVpTx,"}/*!sc*/ </style>   <div class="Box-sc-g0xbh4-0 iVEunk"><div class="Box-sc-g0xbh4-0 jzuOtQ"><div class="Box-sc-g0xbh4-0 bGojzy"></div></div><div class="Box-sc-g0xbh4-0 iNSVHo"><div class="Box-sc-g0xbh4-0 bVgnfw"><div class="Box-sc-g0xbh4-0 CEgMp"><button type="button" aria-haspopup="true" aria-expanded="false" tabindex="0" aria-label="master branch" data-testid="anchor-button" class="Box-sc-g0xbh4-0 gMOVLe prc-Button-ButtonBase-c50BI overview-ref-selector width-full" data-loading="false" data-size="medium" data-variant="default" aria-describedby="branch-picker-repos-header-ref-selector-loading-announcement" id="branch-picker-repos-header-ref-selector"><span data-component="buttonContent" class="Box-sc-g0xbh4-0 gUkoLg prc-Button-ButtonContent-HKbr-"><span data-component="text" class="prc-Button-Label-pTQ3x"><div class="Box-sc-g0xbh4-0 bZBlpz"><div class="Box-sc-g0xbh4-0 lhTYNA"><svg aria-hidden="true" focusable="false" class="octicon octicon-git-branch" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M9.5 3.25a2.25 2.25 0 1 1 3 2.122V6A2.5 2.5 0 0 1 10 8.5H6a1 1 0 0 0-1 1v1.128a2.251 2.251 0 1 1-1.5 0V5.372a2.25 2.25 0 1 1 1.5 0v1.836A2.493 2.493 0 0 1 6 7h4a1 1 0 0 0 1-1v-.628A2.25 2.25 0 0 1 9.5 3.25Zm-6 0a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Zm8.25-.75a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5ZM4.25 12a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Z"></path></svg></div><div class="Box-sc-g0xbh4-0 ffLUq ref-selector-button-text-container"><span class="Box-sc-g0xbh4-0 bmcJak prc-Text-Text-0ima0"> master</span></div></div></span><span data-component="trailingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-triangle-down" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m4.427 7.427 3.396 3.396a.25.25 0 0 0 .354 0l3.396-3.396A.25.25 0 0 0 11.396 7H4.604a.25.25 0 0 0-.177.427Z"></path></svg></span></span></button><button hidden="" data-hotkey-scope="read-only-cursor-text-area"></button></div><div class="Box-sc-g0xbh4-0 fLXEGX"><a style="--button-color:fg.muted" type="button" href="/terser/terser/branches" class="Box-sc-g0xbh4-0 lmSMZJ prc-Button-ButtonBase-c50BI" data-loading="false" data-size="medium" data-variant="invisible" aria-describedby=":Rclab:-loading-announcement"><span data-component="buttonContent" class="Box-sc-g0xbh4-0 gUkoLg prc-Button-ButtonContent-HKbr-"><span data-component="leadingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-git-branch" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M9.5 3.25a2.25 2.25 0 1 1 3 2.122V6A2.5 2.5 0 0 1 10 8.5H6a1 1 0 0 0-1 1v1.128a2.251 2.251 0 1 1-1.5 0V5.372a2.25 2.25 0 1 1 1.5 0v1.836A2.493 2.493 0 0 1 6 7h4a1 1 0 0 0 1-1v-.628A2.25 2.25 0 0 1 9.5 3.25Zm-6 0a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Zm8.25-.75a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5ZM4.25 12a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Z"></path></svg></span><span data-component="text" class="prc-Button-Label-pTQ3x">Branches</span></span></a><a style="--button-color:fg.muted" type="button" href="/terser/terser/tags" class="Box-sc-g0xbh4-0 lmSMZJ prc-Button-ButtonBase-c50BI" data-loading="false" data-size="medium" data-variant="invisible" aria-describedby=":Rklab:-loading-announcement"><span data-component="buttonContent" class="Box-sc-g0xbh4-0 gUkoLg prc-Button-ButtonContent-HKbr-"><span data-component="leadingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-tag" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1 7.775V2.75C1 1.784 1.784 1 2.75 1h5.025c.464 0 .91.184 1.238.513l6.25 6.25a1.75 1.75 0 0 1 0 2.474l-5.026 5.026a1.75 1.75 0 0 1-2.474 0l-6.25-6.25A1.752 1.752 0 0 1 1 7.775Zm1.5 0c0 .066.026.13.073.177l6.25 6.25a.25.25 0 0 0 .354 0l5.025-5.025a.25.25 0 0 0 0-.354l-6.25-6.25a.25.25 0 0 0-.177-.073H2.75a.25.25 0 0 0-.25.25ZM6 5a1 1 0 1 1 0 2 1 1 0 0 1 0-2Z"></path></svg></span><span data-component="text" class="prc-Button-Label-pTQ3x">Tags</span></span></a></div><div class="Box-sc-g0xbh4-0 dqfxud"><a style="--button-color:fg.muted" type="button" aria-label="Go to Branches page" href="/terser/terser/branches" class="Box-sc-g0xbh4-0 fGwBZA prc-Button-ButtonBase-c50BI" data-loading="false" data-no-visuals="true" data-size="medium" data-variant="invisible" aria-describedby=":Relab:-loading-announcement"><svg aria-hidden="true" focusable="false" class="octicon octicon-git-branch" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M9.5 3.25a2.25 2.25 0 1 1 3 2.122V6A2.5 2.5 0 0 1 10 8.5H6a1 1 0 0 0-1 1v1.128a2.251 2.251 0 1 1-1.5 0V5.372a2.25 2.25 0 1 1 1.5 0v1.836A2.493 2.493 0 0 1 6 7h4a1 1 0 0 0 1-1v-.628A2.25 2.25 0 0 1 9.5 3.25Zm-6 0a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Zm8.25-.75a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5ZM4.25 12a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Z"></path></svg></a><a style="--button-color:fg.muted" type="button" aria-label="Go to Tags page" href="/terser/terser/tags" class="Box-sc-g0xbh4-0 fGwBZA prc-Button-ButtonBase-c50BI" data-loading="false" data-no-visuals="true" data-size="medium" data-variant="invisible" aria-describedby=":Rmlab:-loading-announcement"><svg aria-hidden="true" focusable="false" class="octicon octicon-tag" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1 7.775V2.75C1 1.784 1.784 1 2.75 1h5.025c.464 0 .91.184 1.238.513l6.25 6.25a1.75 1.75 0 0 1 0 2.474l-5.026 5.026a1.75 1.75 0 0 1-2.474 0l-6.25-6.25A1.752 1.752 0 0 1 1 7.775Zm1.5 0c0 .066.026.13.073.177l6.25 6.25a.25.25 0 0 0 .354 0l5.025-5.025a.25.25 0 0 0 0-.354l-6.25-6.25a.25.25 0 0 0-.177-.073H2.75a.25.25 0 0 0-.25.25ZM6 5a1 1 0 1 1 0 2 1 1 0 0 1 0-2Z"></path></svg></a></div></div><div class="Box-sc-g0xbh4-0 jxTzTd"><div class="Box-sc-g0xbh4-0 gqqBXN"><div class="Box-sc-g0xbh4-0 dzXgxt"><div class="Box-sc-g0xbh4-0 iWFGlI"><span class="Box-sc-g0xbh4-0 vcvyP TextInput-wrapper prc-components-TextInputWrapper-i1ofR prc-components-TextInputBaseWrapper-ueK9q" data-leading-visual="true" data-trailing-visual="true" aria-busy="false"><span class="TextInput-icon" id=":R2j5ab:" aria-hidden="true"><svg aria-hidden="true" focusable="false" class="octicon octicon-search" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M10.68 11.74a6 6 0 0 1-7.922-8.982 6 6 0 0 1 8.982 7.922l3.04 3.04a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215ZM11.5 7a4.499 4.499 0 1 0-8.997 0A4.499 4.499 0 0 0 11.5 7Z"></path></svg></span><input type="text" aria-label="Go to file" role="combobox" aria-controls="file-results-list" aria-expanded="false" aria-haspopup="dialog" autoCorrect="off" spellcheck="false" placeholder="Go to file" aria-describedby=":R2j5ab: :R2j5abH1:" data-component="input" class="prc-components-Input-Ic-y8" value=""/><span class="TextInput-icon" id=":R2j5abH1:" aria-hidden="true"></span></span></div></div><div class="Box-sc-g0xbh4-0 YUPas"><button type="button" class="prc-Button-ButtonBase-c50BI" data-loading="false" data-no-visuals="true" data-size="medium" data-variant="default" aria-describedby=":Rr5ab:-loading-announcement"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="text" class="prc-Button-Label-pTQ3x">Go to file</span></span></button></div><div class="react-directory-add-file-icon"></div><div class="react-directory-remove-file-icon"></div></div><button type="button" aria-haspopup="true" aria-expanded="false" tabindex="0" class="prc-Button-ButtonBase-c50BI" data-loading="false" data-size="medium" data-variant="primary" aria-describedby=":R55ab:-loading-announcement" id=":R55ab:"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="leadingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-code hide-sm" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m11.28 3.22 4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L13.94 8l-3.72-3.72a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215Zm-6.56 0a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042L2.06 8l3.72 3.72a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L.47 8.53a.75.75 0 0 1 0-1.06Z"></path></svg></span><span data-component="text" class="prc-Button-Label-pTQ3x">Code</span><span data-component="trailingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-triangle-down" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m4.427 7.427 3.396 3.396a.25.25 0 0 0 .354 0l3.396-3.396A.25.25 0 0 0 11.396 7H4.604a.25.25 0 0 0-.177.427Z"></path></svg></span></span></button><div class="Box-sc-g0xbh4-0 izFOf"><button data-component="IconButton" type="button" aria-label="Open more actions menu" aria-haspopup="true" aria-expanded="false" tabindex="0" class="prc-Button-ButtonBase-c50BI prc-Button-IconButton-szpyj" data-loading="false" data-no-visuals="true" data-size="medium" data-variant="default" aria-describedby=":R75ab:-loading-announcement" id=":R75ab:"><svg aria-hidden="true" focusable="false" class="octicon octicon-kebab-horizontal" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M8 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3ZM1.5 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Zm13 0a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path></svg></button></div></div></div><div class="Box-sc-g0xbh4-0 vIPPs"><div data-hpc="true"><button hidden="" data-testid="focus-next-element-button" data-hotkey="j"></button><button hidden="" data-testid="focus-previous-element-button" data-hotkey="k"></button><h2 class="sr-only ScreenReaderHeading-module__userSelectNone--vW4Cq prc-Heading-Heading-6CmGO" data-testid="screen-reader-heading" id="folders-and-files">Folders and files</h2><table aria-labelledby="folders-and-files" class="Box-sc-g0xbh4-0 fdROMU"><thead class="Box-sc-g0xbh4-0 jGKpsv"><tr class="Box-sc-g0xbh4-0 jdgHnn"><th colSpan="2" class="Box-sc-g0xbh4-0 bQivRW"><span class="text-bold">Name</span></th><th colSpan="1" class="Box-sc-g0xbh4-0 ldkMIO"><span class="text-bold">Name</span></th><th class="hide-sm"><div title="Last commit message" class="Truncate__StyledTruncate-sc-23o1d2-0 liVpTx width-fit"><span class="text-bold">Last commit message</span></div></th><th colSpan="1" class="Box-sc-g0xbh4-0 jMbWeI"><div title="Last commit date" class="Truncate__StyledTruncate-sc-23o1d2-0 liVpTx width-fit"><span class="text-bold">Last commit date</span></div></th></tr></thead><tbody><tr class="Box-sc-g0xbh4-0 gpqjiB"><td colSpan="3" class="bgColor-muted p-1 rounded-top-2"><div class="Box-sc-g0xbh4-0 dzCJzi"><h2 class="sr-only ScreenReaderHeading-module__userSelectNone--vW4Cq prc-Heading-Heading-6CmGO" data-testid="screen-reader-heading">Latest commit</h2><div style="width:120px" class="Skeleton Skeleton--text" data-testid="loading"> </div><div class="d-flex flex-shrink-0 gap-2"><div data-testid="latest-commit-details" class="d-none d-sm-flex flex-items-center"></div><div class="d-flex gap-2"><h2 class="sr-only ScreenReaderHeading-module__userSelectNone--vW4Cq prc-Heading-Heading-6CmGO" data-testid="screen-reader-heading">History</h2><a href="/terser/terser/commits/master/" class="prc-Button-ButtonBase-c50BI d-none d-lg-flex LinkButton-module__code-view-link-button--xvCGA flex-items-center fgColor-default" data-loading="false" data-size="small" data-variant="invisible" aria-describedby=":Raqj8pab:-loading-announcement"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="leadingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-history" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m.427 1.927 1.215 1.215a8.002 8.002 0 1 1-1.6 5.685.75.75 0 1 1 1.493-.154 6.5 6.5 0 1 0 1.18-4.458l1.358 1.358A.25.25 0 0 1 3.896 6H.25A.25.25 0 0 1 0 5.75V2.104a.25.25 0 0 1 .427-.177ZM7.75 4a.75.75 0 0 1 .75.75v2.992l2.028.812a.75.75 0 0 1-.557 1.392l-2.5-1A.751.751 0 0 1 7 8.25v-3.5A.75.75 0 0 1 7.75 4Z"></path></svg></span><span data-component="text" class="prc-Button-Label-pTQ3x"><span class="fgColor-default">3,431 Commits</span></span></span></a><div class="d-sm-none"></div><div class="d-flex d-lg-none"><span role="tooltip" aria-label="3,431 Commits" id="history-icon-button-tooltip" class="Tooltip__TooltipBase-sc-17tf59c-0 hWlpPn tooltipped-n"><a href="/terser/terser/commits/master/" class="prc-Button-ButtonBase-c50BI LinkButton-module__code-view-link-button--xvCGA flex-items-center fgColor-default" data-loading="false" data-size="small" data-variant="invisible" aria-describedby=":R1iqj8pab:-loading-announcement history-icon-button-tooltip"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="leadingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-history" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m.427 1.927 1.215 1.215a8.002 8.002 0 1 1-1.6 5.685.75.75 0 1 1 1.493-.154 6.5 6.5 0 1 0 1.18-4.458l1.358 1.358A.25.25 0 0 1 3.896 6H.25A.25.25 0 0 1 0 5.75V2.104a.25.25 0 0 1 .427-.177ZM7.75 4a.75.75 0 0 1 .75.75v2.992l2.028.812a.75.75 0 0 1-.557 1.392l-2.5-1A.751.751 0 0 1 7 8.25v-3.5A.75.75 0 0 1 7.75 4Z"></path></svg></span></span></a></span></div></div></div></div></td></tr><tr class="react-directory-row undefined" id="folder-row-0"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".github" aria-label=".github, (Directory)" class="Link--primary" href="/terser/terser/tree/master/.github">.github</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".github" aria-label=".github, (Directory)" class="Link--primary" href="/terser/terser/tree/master/.github">.github</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-1"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="bin" aria-label="bin, (Directory)" class="Link--primary" href="/terser/terser/tree/master/bin">bin</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="bin" aria-label="bin, (Directory)" class="Link--primary" href="/terser/terser/tree/master/bin">bin</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-2"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="dist" aria-label="dist, (Directory)" class="Link--primary" href="/terser/terser/tree/master/dist">dist</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="dist" aria-label="dist, (Directory)" class="Link--primary" href="/terser/terser/tree/master/dist">dist</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-3"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="lib" aria-label="lib, (Directory)" class="Link--primary" href="/terser/terser/tree/master/lib">lib</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="lib" aria-label="lib, (Directory)" class="Link--primary" href="/terser/terser/tree/master/lib">lib</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-4"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="test" aria-label="test, (Directory)" class="Link--primary" href="/terser/terser/tree/master/test">test</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="test" aria-label="test, (Directory)" class="Link--primary" href="/terser/terser/tree/master/test">test</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-5"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="tools" aria-label="tools, (Directory)" class="Link--primary" href="/terser/terser/tree/master/tools">tools</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="tools" aria-label="tools, (Directory)" class="Link--primary" href="/terser/terser/tree/master/tools">tools</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-6"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".editorconfig" aria-label=".editorconfig, (File)" class="Link--primary" href="/terser/terser/blob/master/.editorconfig">.editorconfig</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".editorconfig" aria-label=".editorconfig, (File)" class="Link--primary" href="/terser/terser/blob/master/.editorconfig">.editorconfig</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-7"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitattributes" aria-label=".gitattributes, (File)" class="Link--primary" href="/terser/terser/blob/master/.gitattributes">.gitattributes</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitattributes" aria-label=".gitattributes, (File)" class="Link--primary" href="/terser/terser/blob/master/.gitattributes">.gitattributes</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-8"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitignore" aria-label=".gitignore, (File)" class="Link--primary" href="/terser/terser/blob/master/.gitignore">.gitignore</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitignore" aria-label=".gitignore, (File)" class="Link--primary" href="/terser/terser/blob/master/.gitignore">.gitignore</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-9"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".ls-lint.yml" aria-label=".ls-lint.yml, (File)" class="Link--primary" href="/terser/terser/blob/master/.ls-lint.yml">.ls-lint.yml</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".ls-lint.yml" aria-label=".ls-lint.yml, (File)" class="Link--primary" href="/terser/terser/blob/master/.ls-lint.yml">.ls-lint.yml</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-10"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="CHANGELOG.md" aria-label="CHANGELOG.md, (File)" class="Link--primary" href="/terser/terser/blob/master/CHANGELOG.md">CHANGELOG.md</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="CHANGELOG.md" aria-label="CHANGELOG.md, (File)" class="Link--primary" href="/terser/terser/blob/master/CHANGELOG.md">CHANGELOG.md</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-11"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="CONTRIBUTING.md" aria-label="CONTRIBUTING.md, (File)" class="Link--primary" href="/terser/terser/blob/master/CONTRIBUTING.md">CONTRIBUTING.md</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="CONTRIBUTING.md" aria-label="CONTRIBUTING.md, (File)" class="Link--primary" href="/terser/terser/blob/master/CONTRIBUTING.md">CONTRIBUTING.md</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-12"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="LICENSE" aria-label="LICENSE, (File)" class="Link--primary" href="/terser/terser/blob/master/LICENSE">LICENSE</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="LICENSE" aria-label="LICENSE, (File)" class="Link--primary" href="/terser/terser/blob/master/LICENSE">LICENSE</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-13"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="PATRONS.md" aria-label="PATRONS.md, (File)" class="Link--primary" href="/terser/terser/blob/master/PATRONS.md">PATRONS.md</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="PATRONS.md" aria-label="PATRONS.md, (File)" class="Link--primary" href="/terser/terser/blob/master/PATRONS.md">PATRONS.md</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-14"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="README.md" aria-label="README.md, (File)" class="Link--primary" href="/terser/terser/blob/master/README.md">README.md</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="README.md" aria-label="README.md, (File)" class="Link--primary" href="/terser/terser/blob/master/README.md">README.md</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-15"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="RECIPES.md" aria-label="RECIPES.md, (File)" class="Link--primary" href="/terser/terser/blob/master/RECIPES.md">RECIPES.md</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="RECIPES.md" aria-label="RECIPES.md, (File)" class="Link--primary" href="/terser/terser/blob/master/RECIPES.md">RECIPES.md</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-16"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="SECURITY.md" aria-label="SECURITY.md, (File)" class="Link--primary" href="/terser/terser/blob/master/SECURITY.md">SECURITY.md</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="SECURITY.md" aria-label="SECURITY.md, (File)" class="Link--primary" href="/terser/terser/blob/master/SECURITY.md">SECURITY.md</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-17"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="main.js" aria-label="main.js, (File)" class="Link--primary" href="/terser/terser/blob/master/main.js">main.js</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="main.js" aria-label="main.js, (File)" class="Link--primary" href="/terser/terser/blob/master/main.js">main.js</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-18"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="package-lock.json" aria-label="package-lock.json, (File)" class="Link--primary" href="/terser/terser/blob/master/package-lock.json">package-lock.json</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="package-lock.json" aria-label="package-lock.json, (File)" class="Link--primary" href="/terser/terser/blob/master/package-lock.json">package-lock.json</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-19"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="package.json" aria-label="package.json, (File)" class="Link--primary" href="/terser/terser/blob/master/package.json">package.json</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="package.json" aria-label="package.json, (File)" class="Link--primary" href="/terser/terser/blob/master/package.json">package.json</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-20"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="renovate.json" aria-label="renovate.json, (File)" class="Link--primary" href="/terser/terser/blob/master/renovate.json">renovate.json</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="renovate.json" aria-label="renovate.json, (File)" class="Link--primary" href="/terser/terser/blob/master/renovate.json">renovate.json</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-21"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="rollup.config.js" aria-label="rollup.config.js, (File)" class="Link--primary" href="/terser/terser/blob/master/rollup.config.js">rollup.config.js</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="rollup.config.js" aria-label="rollup.config.js, (File)" class="Link--primary" href="/terser/terser/blob/master/rollup.config.js">rollup.config.js</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="Box-sc-g0xbh4-0 eNCcrz show-for-mobile" data-testid="view-all-files-row"><td colSpan="3" class="Box-sc-g0xbh4-0 bHTcCe"><div><button class="prc-Link-Link-85e08">View all files</button></div></td></tr></tbody></table></div><div class="Box-sc-g0xbh4-0 csrIcr"><div class="Box-sc-g0xbh4-0 bUQNHB"><div itemscope="" itemType="https://schema.org/abstract" class="Box-sc-g0xbh4-0 jPdcfu"><h2 class="_VisuallyHidden__VisuallyHidden-sc-11jhm7a-0 brGdpi">Repository files navigation</h2><nav class="Box-sc-g0xbh4-0 iphEWz prc-components-UnderlineWrapper-oOh5J" aria-label="Repository files"><ul class="prc-components-UnderlineItemList-b23Hf" role="list"><li class="Box-sc-g0xbh4-0 hUCRAk"><a class="prc-components-UnderlineItem-lJsg-" href="#" aria-current="page"><span data-component="icon"><svg aria-hidden="true" focusable="false" class="octicon octicon-book" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M0 1.75A.75.75 0 0 1 .75 1h4.253c1.227 0 2.317.59 3 1.501A3.743 3.743 0 0 1 11.006 1h4.245a.75.75 0 0 1 .75.75v10.5a.75.75 0 0 1-.75.75h-4.507a2.25 2.25 0 0 0-1.591.659l-.622.621a.75.75 0 0 1-1.06 0l-.622-.621A2.25 2.25 0 0 0 5.258 13H.75a.75.75 0 0 1-.75-.75Zm7.251 10.324.004-5.073-.002-2.253A2.25 2.25 0 0 0 5.003 2.5H1.5v9h3.757a3.75 3.75 0 0 1 1.994.574ZM8.755 4.75l-.004 7.322a3.752 3.752 0 0 1 1.992-.572H14.5v-9h-3.495a2.25 2.25 0 0 0-2.25 2.25Z"></path></svg></span><span data-component="text" data-content="README">README</span></a></li><li class="Box-sc-g0xbh4-0 hUCRAk"><a class="prc-components-UnderlineItem-lJsg-" href="#"><span data-component="icon"><svg aria-hidden="true" focusable="false" class="octicon octicon-law" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M8.75.75V2h.985c.304 0 .603.08.867.231l1.29.736c.038.022.08.033.124.033h2.234a.75.75 0 0 1 0 1.5h-.427l2.111 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.006.005-.01.01-.045.04c-.21.176-.441.327-.686.45C14.556 10.78 13.88 11 13 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L12.178 4.5h-.162c-.305 0-.604-.079-.868-.231l-1.29-.736a.245.245 0 0 0-.124-.033H8.75V13h2.5a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1 0-1.5h2.5V3.5h-.984a.245.245 0 0 0-.124.033l-1.289.737c-.265.15-.564.23-.869.23h-.162l2.112 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.016.015-.045.04c-.21.176-.441.327-.686.45C4.556 10.78 3.88 11 3 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L2.178 4.5H1.75a.75.75 0 0 1 0-1.5h2.234a.249.249 0 0 0 .125-.033l1.288-.737c.265-.15.564-.23.869-.23h.984V.75a.75.75 0 0 1 1.5 0Zm2.945 8.477c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L13 6.327Zm-10 0c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L3 6.327Z"></path></svg></span><span data-component="text" data-content="License">License</span></a></li><li class="Box-sc-g0xbh4-0 hUCRAk"><a class="prc-components-UnderlineItem-lJsg-" href="#"><span data-component="icon"><svg aria-hidden="true" focusable="false" class="octicon octicon-law" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M8.75.75V2h.985c.304 0 .603.08.867.231l1.29.736c.038.022.08.033.124.033h2.234a.75.75 0 0 1 0 1.5h-.427l2.111 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.006.005-.01.01-.045.04c-.21.176-.441.327-.686.45C14.556 10.78 13.88 11 13 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L12.178 4.5h-.162c-.305 0-.604-.079-.868-.231l-1.29-.736a.245.245 0 0 0-.124-.033H8.75V13h2.5a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1 0-1.5h2.5V3.5h-.984a.245.245 0 0 0-.124.033l-1.289.737c-.265.15-.564.23-.869.23h-.162l2.112 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.016.015-.045.04c-.21.176-.441.327-.686.45C4.556 10.78 3.88 11 3 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L2.178 4.5H1.75a.75.75 0 0 1 0-1.5h2.234a.249.249 0 0 0 .125-.033l1.288-.737c.265-.15.564-.23.869-.23h.984V.75a.75.75 0 0 1 1.5 0Zm2.945 8.477c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L13 6.327Zm-10 0c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L3 6.327Z"></path></svg></span><span data-component="text" data-content="Security">Security</span></a></li></ul></nav><button style="--button-color:fg.subtle" type="button" aria-label="Outline" aria-haspopup="true" aria-expanded="false" tabindex="0" class="Box-sc-g0xbh4-0 cwoBXV prc-Button-ButtonBase-c50BI" data-loading="false" data-size="medium" data-variant="invisible" aria-describedby=":Rr9ab:-loading-announcement" id=":Rr9ab:"><svg aria-hidden="true" focusable="false" class="octicon octicon-list-unordered" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M5.75 2.5h8.5a.75.75 0 0 1 0 1.5h-8.5a.75.75 0 0 1 0-1.5Zm0 5h8.5a.75.75 0 0 1 0 1.5h-8.5a.75.75 0 0 1 0-1.5Zm0 5h8.5a.75.75 0 0 1 0 1.5h-8.5a.75.75 0 0 1 0-1.5ZM2 14a1 1 0 1 1 0-2 1 1 0 0 1 0 2Zm1-6a1 1 0 1 1-2 0 1 1 0 0 1 2 0ZM2 4a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z"></path></svg></button></div><div class="Box-sc-g0xbh4-0 QkQOb js-snippet-clipboard-copy-unpositioned undefined" data-hpc="true"><article class="markdown-body entry-content container-lg" itemprop="text"><div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://camo.githubusercontent.com/27f7d635ff57eafb3dedea8bb1e7e8da26ecea9c1126793e62573e14967e70b4/68747470733a2f2f7465727365722e6f72672f696d672f7465727365722d62616e6e65722d6c6f676f2e706e67"><img src="https://camo.githubusercontent.com/27f7d635ff57eafb3dedea8bb1e7e8da26ecea9c1126793e62573e14967e70b4/68747470733a2f2f7465727365722e6f72672f696d672f7465727365722d62616e6e65722d6c6f676f2e706e67" alt="Terser" width="400" data-canonical-src="https://terser.org/img/terser-banner-logo.png" style="max-width: 100%;"></a></h1><a id="" class="anchor" aria-label="Permalink: " href="#"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><a href="https://npmjs.org/package/terser" rel="nofollow"><img src="https://camo.githubusercontent.com/4f1d9672cab432a1f674455dfe13e6a46bb4965f0cbd2a5bdf575c62423107a4/68747470733a2f2f696d672e736869656c64732e696f2f6e706d2f762f7465727365722e737667" alt="NPM Version" data-canonical-src="https://img.shields.io/npm/v/terser.svg" style="max-width: 100%;"></a> <a href="https://npmjs.org/package/terser" rel="nofollow"><img src="https://camo.githubusercontent.com/44d3e999dd618c97f1ebfada6ef69882c2f791a8212c435bef6ed3f0ccfd3764/68747470733a2f2f696d672e736869656c64732e696f2f6e706d2f646d2f7465727365722e737667" alt="NPM Downloads" data-canonical-src="https://img.shields.io/npm/dm/terser.svg" style="max-width: 100%;"></a> <a href="https://github.com/terser/terser/actions/workflows/ci.yml"><img src="https://github.com/terser/terser/actions/workflows/ci.yml/badge.svg" alt="CI pipeline" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser" rel="nofollow"><img src="https://camo.githubusercontent.com/83e62d1539aa0bc62d52d0401494aa4afcaa9438cd85db3be3ab3e97d330bfeb/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f74696572732f62616467652e737667" alt="Opencollective financial contributors" data-canonical-src="https://opencollective.com/terser/tiers/badge.svg" style="max-width: 100%;"></a></p> <p dir="auto">A JavaScript mangler/compressor toolkit for ES6+.</p> <p dir="auto"><em>note</em>: <s>You can support this project on patreon: [link]</s> <strong>The Terser Patreon is shutting down in favor of opencollective</strong>. Check out <a href="https://github.com/terser/terser/blob/master/PATRONS.md">PATRONS.md</a> for our first-tier patrons.</p> <p dir="auto">Terser recommends you use RollupJS to bundle your modules, as that produces smaller code overall.</p> <p dir="auto"><em>Beautification</em> has been undocumented and is <em>being removed</em> from terser, we recommend you use <a href="https://npmjs.com/package/prettier" rel="nofollow">prettier</a>.</p> <p dir="auto">Find the changelog in <a href="https://github.com/terser/terser/blob/master/CHANGELOG.md">CHANGELOG.md</a></p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Why choose terser?</h2><a id="user-content-why-choose-terser" class="anchor" aria-label="Permalink: Why choose terser?" href="#why-choose-terser"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><code>uglify-es</code> is <a href="https://github.com/mishoo/UglifyJS2/issues/3156#issuecomment-392943058" data-hovercard-type="issue" data-hovercard-url="/mishoo/UglifyJS/issues/3156/hovercard">no longer maintained</a> and <code>uglify-js</code> does not support ES6+.</p> <p dir="auto"><strong><code>terser</code></strong> is a fork of <code>uglify-es</code> that mostly retains API and CLI compatibility with <code>uglify-es</code> and <code>uglify-js@3</code>.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Install</h2><a id="user-content-install" class="anchor" aria-label="Permalink: Install" href="#install"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">First make sure you have installed the latest version of <a href="http://nodejs.org/" rel="nofollow">node.js</a> (You may need to restart your computer after this step).</p> <p dir="auto">From NPM for use as a command line app:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="npm install terser -g"><pre class="notranslate"><code>npm install terser -g </code></pre></div> <p dir="auto">From NPM for programmatic use:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="npm install terser"><pre class="notranslate"><code>npm install terser </code></pre></div> <div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto">Command line usage</h1><a id="user-content-command-line-usage" class="anchor" aria-label="Permalink: Command line usage" href="#command-line-usage"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="terser [input files] [options]"><pre class="notranslate"><code>terser [input files] [options] </code></pre></div> <p dir="auto">Terser can take multiple input files. It's recommended that you pass the input files first, then pass the options. Terser will parse input files in sequence and apply any compression options. The files are parsed in the same global scope, that is, a reference from a file to some variable/function declared in another file will be matched properly.</p> <p dir="auto">Command line arguments that take options (like --parse, --compress, --mangle and --format) can take in a comma-separated list of default option overrides. For instance:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="terser input.js --compress ecma=2015,computed_props=false"><pre class="notranslate"><code>terser input.js --compress ecma=2015,computed_props=false </code></pre></div> <p dir="auto">If no input file is specified, Terser will read from STDIN.</p> <p dir="auto">If you wish to pass your options before the input files, separate the two with a double dash to prevent input files being used as option arguments:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="terser --compress --mangle -- input.js"><pre class="notranslate"><code>terser --compress --mangle -- input.js </code></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Command line options</h3><a id="user-content-command-line-options" class="anchor" aria-label="Permalink: Command line options" href="#command-line-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content=" -h, --help Print usage information. `--help options` for details on available options. -V, --version Print version number. -p, --parse <options> Specify parser options: `acorn` Use Acorn for parsing. `bare_returns` Allow return outside of functions. Useful when minifying CommonJS modules and Userscripts that may be anonymous function wrapped (IIFE) by the .user.js engine `caller`. `expression` Parse a single expression, rather than a program (for parsing JSON). `spidermonkey` Assume input files are SpiderMonkey AST format (as JSON). -c, --compress [options] Enable compressor/specify compressor options: `pure_funcs` List of functions that can be safely removed when their return values are not used. -m, --mangle [options] Mangle names/specify mangler options: `reserved` List of names that should not be mangled. --mangle-props [options] Mangle properties/specify mangler options: `builtins` Mangle property names that overlaps with standard JavaScript globals and DOM API props. `debug` Add debug prefix and suffix. `keep_quoted` Only mangle unquoted properties, quoted properties are automatically reserved. `strict` disables quoted properties being automatically reserved. `regex` Only mangle matched property names. `only_annotated` Only mangle properties defined with /*@__MANGLE_PROP__*/. `reserved` List of names that should not be mangled. -f, --format [options] Specify format options. `preamble` Preamble to prepend to the output. You can use this to insert a comment, for example for licensing information. This will not be parsed, but the source map will adjust for its presence. `quote_style` Quote style: 0 - auto 1 - single 2 - double 3 - original `wrap_iife` Wrap IIFEs in parenthesis. Note: you may want to disable `negate_iife` under compressor options. `wrap_func_args` Wrap function arguments in parenthesis. -o, --output <file> Output file path (default STDOUT). Specify `ast` or `spidermonkey` to write Terser or SpiderMonkey AST as JSON to STDOUT respectively. --comments [filter] Preserve copyright comments in the output. By default this works like Google Closure, keeping JSDoc-style comments that contain e.g. "@license", or start with "!". You can optionally pass one of the following arguments to this flag: - "all" to keep all comments - `false` to omit comments in the output - a valid JS RegExp like `/foo/` or `/^!/` to keep only matching comments. Note that currently not *all* comments can be kept when compression is on, because of dead code removal or cascading statements into sequences. --config-file <file> Read `minify()` options from JSON file. -d, --define <expr>[=value] Global definitions. --ecma <version> Specify ECMAScript release: 5, 2015, 2016, etc. -e, --enclose [arg[:value]] Embed output in a big function with configurable arguments and values. --ie8 Support non-standard Internet Explorer 8. Equivalent to setting `ie8: true` in `minify()` for `compress`, `mangle` and `format` options. By default Terser will not try to be IE-proof. --keep-classnames Do not mangle/drop class names. --keep-fnames Do not mangle/drop function names. Useful for code relying on Function.prototype.name. --module Input is an ES6 module. If `compress` or `mangle` is enabled then the `toplevel` option, as well as strict mode, will be enabled. --name-cache <file> File to hold mangled name mappings. --safari10 Support non-standard Safari 10/11. Equivalent to setting `safari10: true` in `minify()` for `mangle` and `format` options. By default `terser` will not work around Safari 10/11 bugs. --source-map [options] Enable source map/specify source map options: `base` Path to compute relative paths from input files. `content` Input source map, useful if you're compressing JS that was generated from some other original code. Specify "inline" if the source map is included within the sources. `filename` Name and/or location of the output source. `includeSources` Pass this flag if you want to include the content of source files in the source map as sourcesContent property. `root` Path to the original source to be included in the source map. `url` If specified, path to the source map to append in `//# sourceMappingURL`. --timings Display operations run time on STDERR. --toplevel Compress and/or mangle variables in top level scope. --wrap <name> Embed everything in a big function, making the “exports” and “global” variables available. You need to pass an argument to this option to specify the name that your module will take when included in, say, a browser."><pre class="notranslate"><code> -h, --help Print usage information. `--help options` for details on available options. -V, --version Print version number. -p, --parse <options> Specify parser options: `acorn` Use Acorn for parsing. `bare_returns` Allow return outside of functions. Useful when minifying CommonJS modules and Userscripts that may be anonymous function wrapped (IIFE) by the .user.js engine `caller`. `expression` Parse a single expression, rather than a program (for parsing JSON). `spidermonkey` Assume input files are SpiderMonkey AST format (as JSON). -c, --compress [options] Enable compressor/specify compressor options: `pure_funcs` List of functions that can be safely removed when their return values are not used. -m, --mangle [options] Mangle names/specify mangler options: `reserved` List of names that should not be mangled. --mangle-props [options] Mangle properties/specify mangler options: `builtins` Mangle property names that overlaps with standard JavaScript globals and DOM API props. `debug` Add debug prefix and suffix. `keep_quoted` Only mangle unquoted properties, quoted properties are automatically reserved. `strict` disables quoted properties being automatically reserved. `regex` Only mangle matched property names. `only_annotated` Only mangle properties defined with /*@__MANGLE_PROP__*/. `reserved` List of names that should not be mangled. -f, --format [options] Specify format options. `preamble` Preamble to prepend to the output. You can use this to insert a comment, for example for licensing information. This will not be parsed, but the source map will adjust for its presence. `quote_style` Quote style: 0 - auto 1 - single 2 - double 3 - original `wrap_iife` Wrap IIFEs in parenthesis. Note: you may want to disable `negate_iife` under compressor options. `wrap_func_args` Wrap function arguments in parenthesis. -o, --output <file> Output file path (default STDOUT). Specify `ast` or `spidermonkey` to write Terser or SpiderMonkey AST as JSON to STDOUT respectively. --comments [filter] Preserve copyright comments in the output. By default this works like Google Closure, keeping JSDoc-style comments that contain e.g. "@license", or start with "!". You can optionally pass one of the following arguments to this flag: - "all" to keep all comments - `false` to omit comments in the output - a valid JS RegExp like `/foo/` or `/^!/` to keep only matching comments. Note that currently not *all* comments can be kept when compression is on, because of dead code removal or cascading statements into sequences. --config-file <file> Read `minify()` options from JSON file. -d, --define <expr>[=value] Global definitions. --ecma <version> Specify ECMAScript release: 5, 2015, 2016, etc. -e, --enclose [arg[:value]] Embed output in a big function with configurable arguments and values. --ie8 Support non-standard Internet Explorer 8. Equivalent to setting `ie8: true` in `minify()` for `compress`, `mangle` and `format` options. By default Terser will not try to be IE-proof. --keep-classnames Do not mangle/drop class names. --keep-fnames Do not mangle/drop function names. Useful for code relying on Function.prototype.name. --module Input is an ES6 module. If `compress` or `mangle` is enabled then the `toplevel` option, as well as strict mode, will be enabled. --name-cache <file> File to hold mangled name mappings. --safari10 Support non-standard Safari 10/11. Equivalent to setting `safari10: true` in `minify()` for `mangle` and `format` options. By default `terser` will not work around Safari 10/11 bugs. --source-map [options] Enable source map/specify source map options: `base` Path to compute relative paths from input files. `content` Input source map, useful if you're compressing JS that was generated from some other original code. Specify "inline" if the source map is included within the sources. `filename` Name and/or location of the output source. `includeSources` Pass this flag if you want to include the content of source files in the source map as sourcesContent property. `root` Path to the original source to be included in the source map. `url` If specified, path to the source map to append in `//# sourceMappingURL`. --timings Display operations run time on STDERR. --toplevel Compress and/or mangle variables in top level scope. --wrap <name> Embed everything in a big function, making the “exports” and “global” variables available. You need to pass an argument to this option to specify the name that your module will take when included in, say, a browser. </code></pre></div> <p dir="auto">Specify <code>--output</code> (<code>-o</code>) to declare the output file. Otherwise the output goes to STDOUT.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">CLI source map options</h2><a id="user-content-cli-source-map-options" class="anchor" aria-label="Permalink: CLI source map options" href="#cli-source-map-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Terser can generate a source map file, which is highly useful for debugging your compressed JavaScript. To get a source map, pass <code>--source-map --output output.js</code> (source map will be written out to <code>output.js.map</code>).</p> <p dir="auto">Additional options:</p> <ul dir="auto"> <li> <p dir="auto"><code>--source-map "filename='<NAME>'"</code> to specify the name of the source map.</p> </li> <li> <p dir="auto"><code>--source-map "root='<URL>'"</code> to pass the URL where the original files can be found.</p> </li> <li> <p dir="auto"><code>--source-map "url='<URL>'"</code> to specify the URL where the source map can be found. Otherwise Terser assumes HTTP <code>X-SourceMap</code> is being used and will omit the <code>//# sourceMappingURL=</code> directive.</p> </li> </ul> <p dir="auto">For example:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="terser js/file1.js js/file2.js \ -o foo.min.js -c -m \ --source-map "root='http://foo.com/src',url='foo.min.js.map'""><pre class="notranslate"><code>terser js/file1.js js/file2.js \ -o foo.min.js -c -m \ --source-map "root='http://foo.com/src',url='foo.min.js.map'" </code></pre></div> <p dir="auto">The above will compress and mangle <code>file1.js</code> and <code>file2.js</code>, will drop the output in <code>foo.min.js</code> and the source map in <code>foo.min.js.map</code>. The source mapping will refer to <code>http://foo.com/src/js/file1.js</code> and <code>http://foo.com/src/js/file2.js</code> (in fact it will list <code>http://foo.com/src</code> as the source map root, and the original files as <code>js/file1.js</code> and <code>js/file2.js</code>).</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Composed source map</h3><a id="user-content-composed-source-map" class="anchor" aria-label="Permalink: Composed source map" href="#composed-source-map"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">When you're compressing JS code that was output by a compiler such as CoffeeScript, mapping to the JS code won't be too helpful. Instead, you'd like to map back to the original code (i.e. CoffeeScript). Terser has an option to take an input source map. Assuming you have a mapping from CoffeeScript → compiled JS, Terser can generate a map from CoffeeScript → compressed JS by mapping every token in the compiled JS to its original location.</p> <p dir="auto">To use this feature pass <code>--source-map "content='/path/to/input/source.map'"</code> or <code>--source-map "content=inline"</code> if the source map is included inline with the sources.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">CLI compress options</h2><a id="user-content-cli-compress-options" class="anchor" aria-label="Permalink: CLI compress options" href="#cli-compress-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">You need to pass <code>--compress</code> (<code>-c</code>) to enable the compressor. Optionally you can pass a comma-separated list of <a href="#compress-options">compress options</a>.</p> <p dir="auto">Options are in the form <code>foo=bar</code>, or just <code>foo</code> (the latter implies a boolean option that you want to set <code>true</code>; it's effectively a shortcut for <code>foo=true</code>).</p> <p dir="auto">Example:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="terser file.js -c toplevel,sequences=false"><pre class="notranslate"><code>terser file.js -c toplevel,sequences=false </code></pre></div> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">CLI mangle options</h2><a id="user-content-cli-mangle-options" class="anchor" aria-label="Permalink: CLI mangle options" href="#cli-mangle-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">To enable the mangler you need to pass <code>--mangle</code> (<code>-m</code>). The following (comma-separated) options are supported:</p> <ul dir="auto"> <li> <p dir="auto"><code>toplevel</code> (default <code>false</code>) -- mangle names declared in the top level scope.</p> </li> <li> <p dir="auto"><code>eval</code> (default <code>false</code>) -- mangle names visible in scopes where <code>eval</code> or <code>with</code> are used.</p> </li> </ul> <p dir="auto">When mangling is enabled but you want to prevent certain names from being mangled, you can declare those names with <code>--mangle reserved</code> — pass a comma-separated list of names. For example:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="terser ... -m reserved=['$','require','exports']"><pre class="notranslate"><code>terser ... -m reserved=['$','require','exports'] </code></pre></div> <p dir="auto">to prevent the <code>require</code>, <code>exports</code> and <code>$</code> names from being changed.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">CLI mangling property names (<code>--mangle-props</code>)</h3><a id="user-content-cli-mangling-property-names---mangle-props" class="anchor" aria-label="Permalink: CLI mangling property names (--mangle-props)" href="#cli-mangling-property-names---mangle-props"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><strong>Note:</strong> THIS <strong>WILL</strong> BREAK YOUR CODE. A good rule of thumb is not to use this unless you know exactly what you're doing and how this works and read this section until the end.</p> <p dir="auto">Mangling property names is a separate step, different from variable name mangling. Pass <code>--mangle-props</code> to enable it. The least dangerous way to use this is to use the <code>regex</code> option like so:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="terser example.js -c -m --mangle-props regex=/_$/"><pre class="notranslate"><code>terser example.js -c -m --mangle-props regex=/_$/ </code></pre></div> <p dir="auto">This will mangle all properties that end with an underscore. So you can use it to mangle internal methods.</p> <p dir="auto">By default, it will mangle all properties in the input code with the exception of built in DOM properties and properties in core JavaScript classes, which is what will break your code if you don't:</p> <ol dir="auto"> <li>Control all the code you're mangling</li> <li>Avoid using a module bundler, as they usually will call Terser on each file individually, making it impossible to pass mangled objects between modules.</li> <li>Avoid calling functions like <code>defineProperty</code> or <code>hasOwnProperty</code>, because they refer to object properties using strings and will break your code if you don't know what you are doing.</li> </ol> <p dir="auto">An example:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="// example.js var x = { baz_: 0, foo_: 1, calc: function() { return this.foo_ + this.baz_; } }; x.bar_ = 2; x["baz_"] = 3; console.log(x.calc());"><pre><span class="pl-c">// example.js</span> <span class="pl-k">var</span> <span class="pl-s1">x</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-c1">baz_</span>: <span class="pl-c1">0</span><span class="pl-kos">,</span> <span class="pl-c1">foo_</span>: <span class="pl-c1">1</span><span class="pl-kos">,</span> <span class="pl-en">calc</span>: <span class="pl-k">function</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-k">return</span> <span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">foo_</span> <span class="pl-c1">+</span> <span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">baz_</span><span class="pl-kos">;</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-s1">x</span><span class="pl-kos">.</span><span class="pl-c1">bar_</span> <span class="pl-c1">=</span> <span class="pl-c1">2</span><span class="pl-kos">;</span> <span class="pl-s1">x</span><span class="pl-kos">[</span><span class="pl-s">"baz_"</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-c1">3</span><span class="pl-kos">;</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">x</span><span class="pl-kos">.</span><span class="pl-en">calc</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">Mangle all properties (except for JavaScript <code>builtins</code>) (<strong>very</strong> unsafe):</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="$ terser example.js -c passes=2 -m --mangle-props"><pre>$ terser example.js -c passes=2 -m --mangle-props</pre></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var x={o:3,t:1,i:function(){return this.t+this.o},s:2};console.log(x.i());"><pre><span class="pl-k">var</span> <span class="pl-s1">x</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">o</span>:<span class="pl-c1">3</span><span class="pl-kos">,</span><span class="pl-c1">t</span>:<span class="pl-c1">1</span><span class="pl-kos">,</span><span class="pl-en">i</span>:<span class="pl-k">function</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">{</span><span class="pl-k">return</span> <span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">t</span><span class="pl-c1">+</span><span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">o</span><span class="pl-kos">}</span><span class="pl-kos">,</span><span class="pl-c1">s</span>:<span class="pl-c1">2</span><span class="pl-kos">}</span><span class="pl-kos">;</span><span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">x</span><span class="pl-kos">.</span><span class="pl-en">i</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">Mangle all properties except for <code>reserved</code> properties (still very unsafe):</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="$ terser example.js -c passes=2 -m --mangle-props reserved=[foo_,bar_]"><pre>$ terser example.js -c passes=2 -m --mangle-props reserved=[foo_,bar_]</pre></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var x={o:3,foo_:1,t:function(){return this.foo_+this.o},bar_:2};console.log(x.t());"><pre><span class="pl-k">var</span> <span class="pl-s1">x</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">o</span>:<span class="pl-c1">3</span><span class="pl-kos">,</span><span class="pl-c1">foo_</span>:<span class="pl-c1">1</span><span class="pl-kos">,</span><span class="pl-en">t</span>:<span class="pl-k">function</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">{</span><span class="pl-k">return</span> <span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">foo_</span><span class="pl-c1">+</span><span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">o</span><span class="pl-kos">}</span><span class="pl-kos">,</span><span class="pl-c1">bar_</span>:<span class="pl-c1">2</span><span class="pl-kos">}</span><span class="pl-kos">;</span><span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">x</span><span class="pl-kos">.</span><span class="pl-en">t</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">Mangle all properties matching a <code>regex</code> (not as unsafe but still unsafe):</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="$ terser example.js -c passes=2 -m --mangle-props regex=/_$/"><pre>$ terser example.js -c passes=2 -m --mangle-props regex=/_$/</pre></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var x={o:3,t:1,calc:function(){return this.t+this.o},i:2};console.log(x.calc());"><pre><span class="pl-k">var</span> <span class="pl-s1">x</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">o</span>:<span class="pl-c1">3</span><span class="pl-kos">,</span><span class="pl-c1">t</span>:<span class="pl-c1">1</span><span class="pl-kos">,</span><span class="pl-en">calc</span>:<span class="pl-k">function</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">{</span><span class="pl-k">return</span> <span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">t</span><span class="pl-c1">+</span><span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">o</span><span class="pl-kos">}</span><span class="pl-kos">,</span><span class="pl-c1">i</span>:<span class="pl-c1">2</span><span class="pl-kos">}</span><span class="pl-kos">;</span><span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">x</span><span class="pl-kos">.</span><span class="pl-en">calc</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">Combining mangle properties options:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="$ terser example.js -c passes=2 -m --mangle-props regex=/_$/,reserved=[bar_]"><pre>$ terser example.js -c passes=2 -m --mangle-props regex=/_$/,reserved=[bar_]</pre></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var x={o:3,t:1,calc:function(){return this.t+this.o},bar_:2};console.log(x.calc());"><pre><span class="pl-k">var</span> <span class="pl-s1">x</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">o</span>:<span class="pl-c1">3</span><span class="pl-kos">,</span><span class="pl-c1">t</span>:<span class="pl-c1">1</span><span class="pl-kos">,</span><span class="pl-en">calc</span>:<span class="pl-k">function</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">{</span><span class="pl-k">return</span> <span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">t</span><span class="pl-c1">+</span><span class="pl-smi">this</span><span class="pl-kos">.</span><span class="pl-c1">o</span><span class="pl-kos">}</span><span class="pl-kos">,</span><span class="pl-c1">bar_</span>:<span class="pl-c1">2</span><span class="pl-kos">}</span><span class="pl-kos">;</span><span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">x</span><span class="pl-kos">.</span><span class="pl-en">calc</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">In order for this to be of any use, we avoid mangling standard JS names and DOM API properties by default (<code>--mangle-props builtins</code> to override).</p> <p dir="auto">A regular expression can be used to define which property names should be mangled. For example, <code>--mangle-props regex=/^_/</code> will only mangle property names that start with an underscore.</p> <p dir="auto">When you compress multiple files using this option, in order for them to work together in the end we need to ensure somehow that one property gets mangled to the same name in all of them. For this, pass <code>--name-cache filename.json</code> and Terser will maintain these mappings in a file which can then be reused. It should be initially empty. Example:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="$ rm -f /tmp/cache.json # start fresh $ terser file1.js file2.js --mangle-props --name-cache /tmp/cache.json -o part1.js $ terser file3.js file4.js --mangle-props --name-cache /tmp/cache.json -o part2.js"><pre>$ rm -f /tmp/cache.json <span class="pl-c"><span class="pl-c">#</span> start fresh</span> $ terser file1.js file2.js --mangle-props --name-cache /tmp/cache.json -o part1.js $ terser file3.js file4.js --mangle-props --name-cache /tmp/cache.json -o part2.js</pre></div> <p dir="auto">Now, <code>part1.js</code> and <code>part2.js</code> will be consistent with each other in terms of mangled property names.</p> <p dir="auto">Using the name cache is not necessary if you compress all your files in a single call to Terser.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Mangling unquoted names (<code>--mangle-props keep_quoted</code>)</h3><a id="user-content-mangling-unquoted-names---mangle-props-keep_quoted" class="anchor" aria-label="Permalink: Mangling unquoted names (--mangle-props keep_quoted)" href="#mangling-unquoted-names---mangle-props-keep_quoted"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Using quoted property name (<code>o["foo"]</code>) reserves the property name (<code>foo</code>) so that it is not mangled throughout the entire script even when used in an unquoted style (<code>o.foo</code>). Example:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="// stuff.js var o = { "foo": 1, bar: 3 }; o.foo += o.bar; console.log(o.foo);"><pre><span class="pl-c">// stuff.js</span> <span class="pl-k">var</span> <span class="pl-s1">o</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-s">"foo"</span>: <span class="pl-c1">1</span><span class="pl-kos">,</span> <span class="pl-c1">bar</span>: <span class="pl-c1">3</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-s1">o</span><span class="pl-kos">.</span><span class="pl-c1">foo</span> <span class="pl-c1">+=</span> <span class="pl-s1">o</span><span class="pl-kos">.</span><span class="pl-c1">bar</span><span class="pl-kos">;</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">o</span><span class="pl-kos">.</span><span class="pl-c1">foo</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="$ terser stuff.js --mangle-props keep_quoted -c -m"><pre>$ terser stuff.js --mangle-props keep_quoted -c -m</pre></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var o={foo:1,o:3};o.foo+=o.o,console.log(o.foo);"><pre><span class="pl-k">var</span> <span class="pl-s1">o</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">foo</span>:<span class="pl-c1">1</span><span class="pl-kos">,</span><span class="pl-c1">o</span>:<span class="pl-c1">3</span><span class="pl-kos">}</span><span class="pl-kos">;</span><span class="pl-s1">o</span><span class="pl-kos">.</span><span class="pl-c1">foo</span><span class="pl-c1">+=</span><span class="pl-s1">o</span><span class="pl-kos">.</span><span class="pl-c1">o</span><span class="pl-kos">,</span><span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">o</span><span class="pl-kos">.</span><span class="pl-c1">foo</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Debugging property name mangling</h3><a id="user-content-debugging-property-name-mangling" class="anchor" aria-label="Permalink: Debugging property name mangling" href="#debugging-property-name-mangling"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">You can also pass <code>--mangle-props debug</code> in order to mangle property names without completely obscuring them. For example the property <code>o.foo</code> would mangle to <code>o._$foo$_</code> with this option. This allows property mangling of a large codebase while still being able to debug the code and identify where mangling is breaking things.</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="$ terser stuff.js --mangle-props debug -c -m"><pre>$ terser stuff.js --mangle-props debug -c -m</pre></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var o={_$foo$_:1,_$bar$_:3};o._$foo$_+=o._$bar$_,console.log(o._$foo$_);"><pre><span class="pl-k">var</span> <span class="pl-s1">o</span><span class="pl-c1">=</span><span class="pl-kos">{</span><span class="pl-c1">_$foo$_</span>:<span class="pl-c1">1</span><span class="pl-kos">,</span><span class="pl-c1">_$bar$_</span>:<span class="pl-c1">3</span><span class="pl-kos">}</span><span class="pl-kos">;</span><span class="pl-s1">o</span><span class="pl-kos">.</span><span class="pl-c1">_$foo$_</span><span class="pl-c1">+=</span><span class="pl-s1">o</span><span class="pl-kos">.</span><span class="pl-c1">_$bar$_</span><span class="pl-kos">,</span><span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">o</span><span class="pl-kos">.</span><span class="pl-c1">_$foo$_</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">You can also pass a custom suffix using <code>--mangle-props debug=XYZ</code>. This would then mangle <code>o.foo</code> to <code>o._$foo$XYZ_</code>. You can change this each time you compile a script to identify how a property got mangled. One technique is to pass a random number on every compile to simulate mangling changing with different inputs (e.g. as you update the input script with new properties), and to help identify mistakes like writing mangled keys to storage.</p> <div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto">API Reference</h1><a id="user-content-api-reference" class="anchor" aria-label="Permalink: API Reference" href="#api-reference"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Assuming installation via NPM, you can load Terser in your application like this:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="const { minify } = require("terser");"><pre><span class="pl-k">const</span> <span class="pl-kos">{</span> minify <span class="pl-kos">}</span> <span class="pl-c1">=</span> <span class="pl-en">require</span><span class="pl-kos">(</span><span class="pl-s">"terser"</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">Or,</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="import { minify } from "terser";"><pre><span class="pl-k">import</span> <span class="pl-kos">{</span> <span class="pl-s1">minify</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">"terser"</span><span class="pl-kos">;</span></pre></div> <p dir="auto">Browser loading is also supported. It exposes a global variable <code>Terser</code> containing a <code>.minify</code> property:</p> <div class="highlight highlight-text-html-basic notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="<script src="https://cdn.jsdelivr.net/npm/source-map@0.7.3/dist/source-map.js"></script> <script src="https://cdn.jsdelivr.net/npm/terser/dist/bundle.min.js"></script>"><pre><span class="pl-kos"><</span><span class="pl-ent">script</span> <span class="pl-c1">src</span>="<span class="pl-s">https://cdn.jsdelivr.net/npm/source-map@0.7.3/dist/source-map.js</span>"<span class="pl-kos">></span><span class="pl-kos"></</span><span class="pl-ent">script</span><span class="pl-kos">></span> <span class="pl-kos"><</span><span class="pl-ent">script</span> <span class="pl-c1">src</span>="<span class="pl-s">https://cdn.jsdelivr.net/npm/terser/dist/bundle.min.js</span>"<span class="pl-kos">></span><span class="pl-kos"></</span><span class="pl-ent">script</span><span class="pl-kos">></span></pre></div> <p dir="auto">There is an async high level function, <strong><code>async minify(code, options)</code></strong>, which will perform all minification <a href="#minify-options">phases</a> in a configurable manner. By default <code>minify()</code> will enable <a href="#compress-options"><code>compress</code></a> and <a href="#mangle-options"><code>mangle</code></a>. Example:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var code = "function add(first, second) { return first + second; }"; var result = await minify(code, { sourceMap: true }); console.log(result.code); // minified output: function add(n,d){return n+d} console.log(result.map); // source map"><pre><span class="pl-k">var</span> <span class="pl-s1">code</span> <span class="pl-c1">=</span> <span class="pl-s">"function add(first, second) { return first + second; }"</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-s1">result</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s1">code</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">sourceMap</span>: <span class="pl-c1">true</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">result</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// minified output: function add(n,d){return n+d}</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">result</span><span class="pl-kos">.</span><span class="pl-c1">map</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// source map</span></pre></div> <p dir="auto">There is also a <code>minify_sync()</code> alternative version of it, which returns instantly.</p> <p dir="auto">You can <code>minify</code> more than one JavaScript file at a time by using an object for the first argument where the keys are file names and the values are source code:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var code = { "file1.js": "function add(first, second) { return first + second; }", "file2.js": "console.log(add(1 + 2, 3 + 4));" }; var result = await minify(code); console.log(result.code); // function add(d,n){return d+n}console.log(add(3,7));"><pre><span class="pl-k">var</span> <span class="pl-s1">code</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-s">"file1.js"</span>: <span class="pl-s">"function add(first, second) { return first + second; }"</span><span class="pl-kos">,</span> <span class="pl-s">"file2.js"</span>: <span class="pl-s">"console.log(add(1 + 2, 3 + 4));"</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-s1">result</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s1">code</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">result</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// function add(d,n){return d+n}console.log(add(3,7));</span></pre></div> <p dir="auto">The <code>toplevel</code> option:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var code = { "file1.js": "function add(first, second) { return first + second; }", "file2.js": "console.log(add(1 + 2, 3 + 4));" }; var options = { toplevel: true }; var result = await minify(code, options); console.log(result.code); // console.log(3+7);"><pre><span class="pl-k">var</span> <span class="pl-s1">code</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-s">"file1.js"</span>: <span class="pl-s">"function add(first, second) { return first + second; }"</span><span class="pl-kos">,</span> <span class="pl-s">"file2.js"</span>: <span class="pl-s">"console.log(add(1 + 2, 3 + 4));"</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-s1">options</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-c1">toplevel</span>: <span class="pl-c1">true</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-s1">result</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s1">code</span><span class="pl-kos">,</span> <span class="pl-s1">options</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">result</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// console.log(3+7);</span></pre></div> <p dir="auto">The <code>nameCache</code> option:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var options = { mangle: { toplevel: true, }, nameCache: {} }; var result1 = await minify({ "file1.js": "function add(first, second) { return first + second; }" }, options); var result2 = await minify({ "file2.js": "console.log(add(1 + 2, 3 + 4));" }, options); console.log(result1.code); // function n(n,r){return n+r} console.log(result2.code); // console.log(n(3,7));"><pre><span class="pl-k">var</span> <span class="pl-s1">options</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-c1">mangle</span>: <span class="pl-kos">{</span> <span class="pl-c1">toplevel</span>: <span class="pl-c1">true</span><span class="pl-kos">,</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c1">nameCache</span>: <span class="pl-kos">{</span><span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-s1">result1</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-kos">{</span> <span class="pl-s">"file1.js"</span>: <span class="pl-s">"function add(first, second) { return first + second; }"</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-s1">options</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-s1">result2</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-kos">{</span> <span class="pl-s">"file2.js"</span>: <span class="pl-s">"console.log(add(1 + 2, 3 + 4));"</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-s1">options</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">result1</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// function n(n,r){return n+r}</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">result2</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// console.log(n(3,7));</span></pre></div> <p dir="auto">You may persist the name cache to the file system in the following way:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var cacheFileName = "/tmp/cache.json"; var options = { mangle: { properties: true, }, nameCache: JSON.parse(fs.readFileSync(cacheFileName, "utf8")) }; fs.writeFileSync("part1.js", await minify({ "file1.js": fs.readFileSync("file1.js", "utf8"), "file2.js": fs.readFileSync("file2.js", "utf8") }, options).code, "utf8"); fs.writeFileSync("part2.js", await minify({ "file3.js": fs.readFileSync("file3.js", "utf8"), "file4.js": fs.readFileSync("file4.js", "utf8") }, options).code, "utf8"); fs.writeFileSync(cacheFileName, JSON.stringify(options.nameCache), "utf8");"><pre><span class="pl-k">var</span> <span class="pl-s1">cacheFileName</span> <span class="pl-c1">=</span> <span class="pl-s">"/tmp/cache.json"</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-s1">options</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-c1">mangle</span>: <span class="pl-kos">{</span> <span class="pl-c1">properties</span>: <span class="pl-c1">true</span><span class="pl-kos">,</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c1">nameCache</span>: <span class="pl-c1">JSON</span><span class="pl-kos">.</span><span class="pl-en">parse</span><span class="pl-kos">(</span><span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">readFileSync</span><span class="pl-kos">(</span><span class="pl-s1">cacheFileName</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span><span class="pl-kos">)</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">writeFileSync</span><span class="pl-kos">(</span><span class="pl-s">"part1.js"</span><span class="pl-kos">,</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-kos">{</span> <span class="pl-s">"file1.js"</span>: <span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">readFileSync</span><span class="pl-kos">(</span><span class="pl-s">"file1.js"</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span><span class="pl-kos">,</span> <span class="pl-s">"file2.js"</span>: <span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">readFileSync</span><span class="pl-kos">(</span><span class="pl-s">"file2.js"</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-s1">options</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">writeFileSync</span><span class="pl-kos">(</span><span class="pl-s">"part2.js"</span><span class="pl-kos">,</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-kos">{</span> <span class="pl-s">"file3.js"</span>: <span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">readFileSync</span><span class="pl-kos">(</span><span class="pl-s">"file3.js"</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span><span class="pl-kos">,</span> <span class="pl-s">"file4.js"</span>: <span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">readFileSync</span><span class="pl-kos">(</span><span class="pl-s">"file4.js"</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-s1">options</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">writeFileSync</span><span class="pl-kos">(</span><span class="pl-s1">cacheFileName</span><span class="pl-kos">,</span> <span class="pl-c1">JSON</span><span class="pl-kos">.</span><span class="pl-en">stringify</span><span class="pl-kos">(</span><span class="pl-s1">options</span><span class="pl-kos">.</span><span class="pl-c1">nameCache</span><span class="pl-kos">)</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">An example of a combination of <code>minify()</code> options:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var code = { "file1.js": "function add(first, second) { return first + second; }", "file2.js": "console.log(add(1 + 2, 3 + 4));" }; var options = { toplevel: true, compress: { global_defs: { "@console.log": "alert" }, passes: 2 }, format: { preamble: "/* minified */" } }; var result = await minify(code, options); console.log(result.code); // /* minified */ // alert(10);""><pre><span class="pl-k">var</span> <span class="pl-s1">code</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-s">"file1.js"</span>: <span class="pl-s">"function add(first, second) { return first + second; }"</span><span class="pl-kos">,</span> <span class="pl-s">"file2.js"</span>: <span class="pl-s">"console.log(add(1 + 2, 3 + 4));"</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-s1">options</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-c1">toplevel</span>: <span class="pl-c1">true</span><span class="pl-kos">,</span> <span class="pl-c1">compress</span>: <span class="pl-kos">{</span> <span class="pl-c1">global_defs</span>: <span class="pl-kos">{</span> <span class="pl-s">"@console.log"</span>: <span class="pl-s">"alert"</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c1">passes</span>: <span class="pl-c1">2</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c1">format</span>: <span class="pl-kos">{</span> <span class="pl-c1">preamble</span>: <span class="pl-s">"/* minified */"</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-s1">result</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s1">code</span><span class="pl-kos">,</span> <span class="pl-s1">options</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">result</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// /* minified */</span> <span class="pl-c">// alert(10);"</span></pre></div> <p dir="auto">An error example:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="try { const result = await minify({"foo.js" : "if (0) else console.log(1);"}); // Do something with result } catch (error) { const { message, filename, line, col, pos } = error; // Do something with error }"><pre><span class="pl-k">try</span> <span class="pl-kos">{</span> <span class="pl-k">const</span> <span class="pl-s1">result</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-kos">{</span><span class="pl-s">"foo.js"</span> : <span class="pl-s">"if (0) else console.log(1);"</span><span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// Do something with result</span> <span class="pl-kos">}</span> <span class="pl-k">catch</span> <span class="pl-kos">(</span><span class="pl-s1">error</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-k">const</span> <span class="pl-kos">{</span> message<span class="pl-kos">,</span> filename<span class="pl-kos">,</span> line<span class="pl-kos">,</span> col<span class="pl-kos">,</span> pos <span class="pl-kos">}</span> <span class="pl-c1">=</span> <span class="pl-s1">error</span><span class="pl-kos">;</span> <span class="pl-c">// Do something with error</span> <span class="pl-kos">}</span></pre></div> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Minify options</h2><a id="user-content-minify-options" class="anchor" aria-label="Permalink: Minify options" href="#minify-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <ul dir="auto"> <li> <p dir="auto"><code>ecma</code> (default <code>undefined</code>) - pass <code>5</code>, <code>2015</code>, <code>2016</code>, etc to override <code>compress</code> and <code>format</code>'s <code>ecma</code> options.</p> </li> <li> <p dir="auto"><code>enclose</code> (default <code>false</code>) - pass <code>true</code>, or a string in the format of <code>"args[:values]"</code>, where <code>args</code> and <code>values</code> are comma-separated argument names and values, respectively, to embed the output in a big function with the configurable arguments and values.</p> </li> <li> <p dir="auto"><code>parse</code> (default <code>{}</code>) — pass an object if you wish to specify some additional <a href="#parse-options">parse options</a>.</p> </li> <li> <p dir="auto"><code>compress</code> (default <code>{}</code>) — pass <code>false</code> to skip compressing entirely. Pass an object to specify custom <a href="#compress-options">compress options</a>.</p> </li> <li> <p dir="auto"><code>mangle</code> (default <code>true</code>) — pass <code>false</code> to skip mangling names, or pass an object to specify <a href="#mangle-options">mangle options</a> (see below).</p> <ul dir="auto"> <li><code>mangle.properties</code> (default <code>false</code>) — a subcategory of the mangle option. Pass an object to specify custom <a href="#mangle-properties-options">mangle property options</a>.</li> </ul> </li> <li> <p dir="auto"><code>module</code> (default <code>false</code>) — Use when minifying an ES6 module. "use strict" is implied and names can be mangled on the top scope. If <code>compress</code> or <code>mangle</code> is enabled then the <code>toplevel</code> option will be enabled.</p> </li> <li> <p dir="auto"><code>format</code> or <code>output</code> (default <code>null</code>) — pass an object if you wish to specify additional <a href="#format-options">format options</a>. The defaults are optimized for best compression.</p> </li> <li> <p dir="auto"><code>sourceMap</code> (default <code>false</code>) - pass an object if you wish to specify <a href="#source-map-options">source map options</a>.</p> </li> <li> <p dir="auto"><code>toplevel</code> (default <code>false</code>) - set to <code>true</code> if you wish to enable top level variable and function name mangling and to drop unused variables and functions.</p> </li> <li> <p dir="auto"><code>nameCache</code> (default <code>null</code>) - pass an empty object <code>{}</code> or a previously used <code>nameCache</code> object if you wish to cache mangled variable and property names across multiple invocations of <code>minify()</code>. Note: this is a read/write property. <code>minify()</code> will read the name cache state of this object and update it during minification so that it may be reused or externally persisted by the user.</p> </li> <li> <p dir="auto"><code>ie8</code> (default <code>false</code>) - set to <code>true</code> to support IE8.</p> </li> <li> <p dir="auto"><code>keep_classnames</code> (default: <code>undefined</code>) - pass <code>true</code> to prevent discarding or mangling of class names. Pass a regular expression to only keep class names matching that regex.</p> </li> <li> <p dir="auto"><code>keep_fnames</code> (default: <code>false</code>) - pass <code>true</code> to prevent discarding or mangling of function names. Pass a regular expression to only keep function names matching that regex. Useful for code relying on <code>Function.prototype.name</code>. If the top level minify option <code>keep_classnames</code> is <code>undefined</code> it will be overridden with the value of the top level minify option <code>keep_fnames</code>.</p> </li> <li> <p dir="auto"><code>safari10</code> (default: <code>false</code>) - pass <code>true</code> to work around Safari 10/11 bugs in loop scoping and <code>await</code>. See <code>safari10</code> options in <a href="#mangle-options"><code>mangle</code></a> and <a href="#format-options"><code>format</code></a> for details.</p> </li> </ul> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Minify options structure</h2><a id="user-content-minify-options-structure" class="anchor" aria-label="Permalink: Minify options structure" href="#minify-options-structure"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="{ parse: { // parse options }, compress: { // compress options }, mangle: { // mangle options properties: { // mangle property options } }, format: { // format options (can also use `output` for backwards compatibility) }, sourceMap: { // source map options }, ecma: 5, // specify one of: 5, 2015, 2016, etc. enclose: false, // or specify true, or "args:values" keep_classnames: false, keep_fnames: false, ie8: false, module: false, nameCache: null, // or specify a name cache object safari10: false, toplevel: false }"><pre><span class="pl-kos">{</span> <span class="pl-c1">parse</span>: <span class="pl-kos">{</span> <span class="pl-c">// parse options</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c1">compress</span>: <span class="pl-kos">{</span> <span class="pl-c">// compress options</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c1">mangle</span>: <span class="pl-kos">{</span> <span class="pl-c">// mangle options</span> <span class="pl-c1">properties</span>: <span class="pl-kos">{</span> <span class="pl-c">// mangle property options</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c1">format</span>: <span class="pl-kos">{</span> <span class="pl-c">// format options (can also use `output` for backwards compatibility)</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c1">sourceMap</span>: <span class="pl-kos">{</span> <span class="pl-c">// source map options</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c1">ecma</span>: <span class="pl-c1">5</span><span class="pl-kos">,</span> <span class="pl-c">// specify one of: 5, 2015, 2016, etc.</span> <span class="pl-c1">enclose</span>: <span class="pl-c1">false</span><span class="pl-kos">,</span> <span class="pl-c">// or specify true, or "args:values"</span> <span class="pl-c1">keep_classnames</span>: <span class="pl-c1">false</span><span class="pl-kos">,</span> <span class="pl-c1">keep_fnames</span>: <span class="pl-c1">false</span><span class="pl-kos">,</span> <span class="pl-c1">ie8</span>: <span class="pl-c1">false</span><span class="pl-kos">,</span> <span class="pl-c1">module</span>: <span class="pl-c1">false</span><span class="pl-kos">,</span> <span class="pl-c1">nameCache</span>: <span class="pl-c1">null</span><span class="pl-kos">,</span> <span class="pl-c">// or specify a name cache object</span> <span class="pl-c1">safari10</span>: <span class="pl-c1">false</span><span class="pl-kos">,</span> <span class="pl-c1">toplevel</span>: <span class="pl-c1">false</span> <span class="pl-kos">}</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Source map options</h3><a id="user-content-source-map-options" class="anchor" aria-label="Permalink: Source map options" href="#source-map-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">To generate a source map:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var result = await minify({"file1.js": "var a = function() {};"}, { sourceMap: { filename: "out.js", url: "out.js.map" } }); console.log(result.code); // minified output console.log(result.map); // source map"><pre><span class="pl-k">var</span> <span class="pl-s1">result</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-kos">{</span><span class="pl-s">"file1.js"</span>: <span class="pl-s">"var a = function() {};"</span><span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">sourceMap</span>: <span class="pl-kos">{</span> <span class="pl-c1">filename</span>: <span class="pl-s">"out.js"</span><span class="pl-kos">,</span> <span class="pl-c1">url</span>: <span class="pl-s">"out.js.map"</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">result</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// minified output</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">result</span><span class="pl-kos">.</span><span class="pl-c1">map</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// source map</span></pre></div> <p dir="auto">Note that the source map is not saved in a file, it's just returned in <code>result.map</code>. The value passed for <code>sourceMap.url</code> is only used to set <code>//# sourceMappingURL=out.js.map</code> in <code>result.code</code>. The value of <code>filename</code> is only used to set <code>file</code> attribute (see <a href="https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k" rel="nofollow">the spec</a>) in source map file.</p> <p dir="auto">You can set option <code>sourceMap.url</code> to be <code>"inline"</code> and source map will be appended to code.</p> <p dir="auto">You can also specify sourceRoot property to be included in source map:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var result = await minify({"file1.js": "var a = function() {};"}, { sourceMap: { root: "http://example.com/src", url: "out.js.map" } });"><pre><span class="pl-k">var</span> <span class="pl-s1">result</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-kos">{</span><span class="pl-s">"file1.js"</span>: <span class="pl-s">"var a = function() {};"</span><span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">sourceMap</span>: <span class="pl-kos">{</span> <span class="pl-c1">root</span>: <span class="pl-s">"http://example.com/src"</span><span class="pl-kos">,</span> <span class="pl-c1">url</span>: <span class="pl-s">"out.js.map"</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">If you're compressing compiled JavaScript and have a source map for it, you can use <code>sourceMap.content</code>:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var result = await minify({"compiled.js": "compiled code"}, { sourceMap: { content: "content from compiled.js.map", url: "minified.js.map" } }); // same as before, it returns `code` and `map`"><pre><span class="pl-k">var</span> <span class="pl-s1">result</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-kos">{</span><span class="pl-s">"compiled.js"</span>: <span class="pl-s">"compiled code"</span><span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">sourceMap</span>: <span class="pl-kos">{</span> <span class="pl-c1">content</span>: <span class="pl-s">"content from compiled.js.map"</span><span class="pl-kos">,</span> <span class="pl-c1">url</span>: <span class="pl-s">"minified.js.map"</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// same as before, it returns `code` and `map`</span></pre></div> <p dir="auto">If you're using the <code>X-SourceMap</code> header instead, you can just omit <code>sourceMap.url</code>.</p> <p dir="auto">If you happen to need the source map as a raw object, set <code>sourceMap.asObject</code> to <code>true</code>.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Parse options</h2><a id="user-content-parse-options" class="anchor" aria-label="Permalink: Parse options" href="#parse-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <ul dir="auto"> <li> <p dir="auto"><code>bare_returns</code> (default <code>false</code>) -- support top level <code>return</code> statements</p> </li> <li> <p dir="auto"><code>html5_comments</code> (default <code>true</code>)</p> </li> <li> <p dir="auto"><code>shebang</code> (default <code>true</code>) -- support <code>#!command</code> as the first line</p> </li> <li> <p dir="auto"><code>spidermonkey</code> (default <code>false</code>) -- accept a Spidermonkey (Mozilla) AST</p> </li> </ul> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Compress options</h2><a id="user-content-compress-options" class="anchor" aria-label="Permalink: Compress options" href="#compress-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <ul dir="auto"> <li> <p dir="auto"><code>defaults</code> (default: <code>true</code>) -- Pass <code>false</code> to disable most default enabled <code>compress</code> transforms. Useful when you only want to enable a few <code>compress</code> options while disabling the rest.</p> </li> <li> <p dir="auto"><code>arrows</code> (default: <code>true</code>) -- Class and object literal methods are converted will also be converted to arrow expressions if the resultant code is shorter: <code>m(){return x}</code> becomes <code>m:()=>x</code>. To do this to regular ES5 functions which don't use <code>this</code> or <code>arguments</code>, see <code>unsafe_arrows</code>.</p> </li> <li> <p dir="auto"><code>arguments</code> (default: <code>false</code>) -- replace <code>arguments[index]</code> with function parameter name whenever possible.</p> </li> <li> <p dir="auto"><code>booleans</code> (default: <code>true</code>) -- various optimizations for boolean context, for example <code>!!a ? b : c → a ? b : c</code></p> </li> <li> <p dir="auto"><code>booleans_as_integers</code> (default: <code>false</code>) -- Turn booleans into 0 and 1, also makes comparisons with booleans use <code>==</code> and <code>!=</code> instead of <code>===</code> and <code>!==</code>.</p> </li> <li> <p dir="auto"><code>collapse_vars</code> (default: <code>true</code>) -- Collapse single-use non-constant variables, side effects permitting.</p> </li> <li> <p dir="auto"><code>comparisons</code> (default: <code>true</code>) -- apply certain optimizations to binary nodes, e.g. <code>!(a <= b) → a > b</code> (only when <code>unsafe_comps</code>), attempts to negate binary nodes, e.g. <code>a = !b && !c && !d && !e → a=!(b||c||d||e)</code> etc. Note: <code>comparisons</code> works best with <code>lhs_constants</code> enabled.</p> </li> <li> <p dir="auto"><code>computed_props</code> (default: <code>true</code>) -- Transforms constant computed properties into regular ones: <code>{["computed"]: 1}</code> is converted to <code>{computed: 1}</code>.</p> </li> <li> <p dir="auto"><code>conditionals</code> (default: <code>true</code>) -- apply optimizations for <code>if</code>-s and conditional expressions</p> </li> <li> <p dir="auto"><code>dead_code</code> (default: <code>true</code>) -- remove unreachable code</p> </li> <li> <p dir="auto"><code>directives</code> (default: <code>true</code>) -- remove redundant or non-standard directives</p> </li> <li> <p dir="auto"><code>drop_console</code> (default: <code>false</code>) -- Pass <code>true</code> to discard calls to <code>console.*</code> functions. If you only want to discard a portion of console, you can pass an array like this <code>['log', 'info']</code>, which will only discard <code>console.log</code>、 <code>console.info</code>.</p> </li> <li> <p dir="auto"><code>drop_debugger</code> (default: <code>true</code>) -- remove <code>debugger;</code> statements</p> </li> <li> <p dir="auto"><code>ecma</code> (default: <code>5</code>) -- Pass <code>2015</code> or greater to enable <code>compress</code> options that will transform ES5 code into smaller ES6+ equivalent forms.</p> </li> <li> <p dir="auto"><code>evaluate</code> (default: <code>true</code>) -- attempt to evaluate constant expressions</p> </li> <li> <p dir="auto"><code>expression</code> (default: <code>false</code>) -- Pass <code>true</code> to preserve completion values from terminal statements without <code>return</code>, e.g. in bookmarklets.</p> </li> <li> <p dir="auto"><code>global_defs</code> (default: <code>{}</code>) -- see <a href="#conditional-compilation">conditional compilation</a></p> </li> <li> <p dir="auto"><code>hoist_funs</code> (default: <code>false</code>) -- hoist function declarations</p> </li> <li> <p dir="auto"><code>hoist_props</code> (default: <code>true</code>) -- hoist properties from constant object and array literals into regular variables subject to a set of constraints. For example: <code>var o={p:1, q:2}; f(o.p, o.q);</code> is converted to <code>f(1, 2);</code>. Note: <code>hoist_props</code> works best with <code>mangle</code> enabled, the <code>compress</code> option <code>passes</code> set to <code>2</code> or higher, and the <code>compress</code> option <code>toplevel</code> enabled.</p> </li> <li> <p dir="auto"><code>hoist_vars</code> (default: <code>false</code>) -- hoist <code>var</code> declarations (this is <code>false</code> by default because it seems to increase the size of the output in general)</p> </li> <li> <p dir="auto"><code>if_return</code> (default: <code>true</code>) -- optimizations for if/return and if/continue</p> </li> <li> <p dir="auto"><code>inline</code> (default: <code>true</code>) -- inline calls to function with simple/<code>return</code> statement:</p> <ul dir="auto"> <li><code>false</code> -- same as <code>0</code></li> <li><code>0</code> -- disabled inlining</li> <li><code>1</code> -- inline simple functions</li> <li><code>2</code> -- inline functions with arguments</li> <li><code>3</code> -- inline functions with arguments and variables</li> <li><code>true</code> -- same as <code>3</code></li> </ul> </li> <li> <p dir="auto"><code>join_vars</code> (default: <code>true</code>) -- join consecutive <code>var</code>, <code>let</code> and <code>const</code> statements</p> </li> <li> <p dir="auto"><code>keep_classnames</code> (default: <code>false</code>) -- Pass <code>true</code> to prevent the compressor from discarding class names. Pass a regular expression to only keep class names matching that regex. See also: the <code>keep_classnames</code> <a href="#mangle-options">mangle option</a>.</p> </li> <li> <p dir="auto"><code>keep_fargs</code> (default: <code>true</code>) -- Prevents the compressor from discarding unused function arguments. You need this for code which relies on <code>Function.length</code>.</p> </li> <li> <p dir="auto"><code>keep_fnames</code> (default: <code>false</code>) -- Pass <code>true</code> to prevent the compressor from discarding function names. Pass a regular expression to only keep function names matching that regex. Useful for code relying on <code>Function.prototype.name</code>. See also: the <code>keep_fnames</code> <a href="#mangle-options">mangle option</a>.</p> </li> <li> <p dir="auto"><code>keep_infinity</code> (default: <code>false</code>) -- Pass <code>true</code> to prevent <code>Infinity</code> from being compressed into <code>1/0</code>, which may cause performance issues on Chrome.</p> </li> <li> <p dir="auto"><code>lhs_constants</code> (default: <code>true</code>) -- Moves constant values to the left-hand side of binary nodes. <code>foo == 42 → 42 == foo</code></p> </li> <li> <p dir="auto"><code>loops</code> (default: <code>true</code>) -- optimizations for <code>do</code>, <code>while</code> and <code>for</code> loops when we can statically determine the condition.</p> </li> <li> <p dir="auto"><code>module</code> (default <code>false</code>) -- Pass <code>true</code> when compressing an ES6 module. Strict mode is implied and the <code>toplevel</code> option as well.</p> </li> <li> <p dir="auto"><code>negate_iife</code> (default: <code>true</code>) -- negate "Immediately-Called Function Expressions" where the return value is discarded, to avoid the parens that the code generator would insert.</p> </li> <li> <p dir="auto"><code>passes</code> (default: <code>1</code>) -- The maximum number of times to run compress. In some cases more than one pass leads to further compressed code. Keep in mind more passes will take more time.</p> </li> <li> <p dir="auto"><code>properties</code> (default: <code>true</code>) -- rewrite property access using the dot notation, for example <code>foo["bar"] → foo.bar</code></p> </li> <li> <p dir="auto"><code>pure_funcs</code> (default: <code>null</code>) -- You can pass an array of names and Terser will assume that those functions do not produce side effects. DANGER: will not check if the name is redefined in scope. An example case here, for instance <code>var q = Math.floor(a/b)</code>. If variable <code>q</code> is not used elsewhere, Terser will drop it, but will still keep the <code>Math.floor(a/b)</code>, not knowing what it does. You can pass <code>pure_funcs: [ 'Math.floor' ]</code> to let it know that this function won't produce any side effect, in which case the whole statement would get discarded. The current implementation adds some overhead (compression will be slower).</p> </li> <li> <p dir="auto"><code>pure_getters</code> (default: <code>"strict"</code>) -- If you pass <code>true</code> for this, Terser will assume that object property access (e.g. <code>foo.bar</code> or <code>foo["bar"]</code>) doesn't have any side effects. Specify <code>"strict"</code> to treat <code>foo.bar</code> as side-effect-free only when <code>foo</code> is certain to not throw, i.e. not <code>null</code> or <code>undefined</code>.</p> </li> <li> <p dir="auto"><code>pure_new</code> (default: <code>false</code>) -- Set to <code>true</code> to assume <code>new X()</code> never has side effects.</p> </li> <li> <p dir="auto"><code>reduce_vars</code> (default: <code>true</code>) -- Improve optimization on variables assigned with and used as constant values.</p> </li> <li> <p dir="auto"><code>reduce_funcs</code> (default: <code>true</code>) -- Inline single-use functions when possible. Depends on <code>reduce_vars</code> being enabled. Disabling this option sometimes improves performance of the output code.</p> </li> <li> <p dir="auto"><code>sequences</code> (default: <code>true</code>) -- join consecutive simple statements using the comma operator. May be set to a positive integer to specify the maximum number of consecutive comma sequences that will be generated. If this option is set to <code>true</code> then the default <code>sequences</code> limit is <code>200</code>. Set option to <code>false</code> or <code>0</code> to disable. The smallest <code>sequences</code> length is <code>2</code>. A <code>sequences</code> value of <code>1</code> is grandfathered to be equivalent to <code>true</code> and as such means <code>200</code>. On rare occasions the default sequences limit leads to very slow compress times in which case a value of <code>20</code> or less is recommended.</p> </li> <li> <p dir="auto"><code>side_effects</code> (default: <code>true</code>) -- Remove expressions which have no side effects and whose results aren't used.</p> </li> <li> <p dir="auto"><code>switches</code> (default: <code>true</code>) -- de-duplicate and remove unreachable <code>switch</code> branches</p> </li> <li> <p dir="auto"><code>toplevel</code> (default: <code>false</code>) -- drop unreferenced functions (<code>"funcs"</code>) and/or variables (<code>"vars"</code>) in the top level scope (<code>false</code> by default, <code>true</code> to drop both unreferenced functions and variables)</p> </li> <li> <p dir="auto"><code>top_retain</code> (default: <code>null</code>) -- prevent specific toplevel functions and variables from <code>unused</code> removal (can be array, comma-separated, RegExp or function. Implies <code>toplevel</code>)</p> </li> <li> <p dir="auto"><code>typeofs</code> (default: <code>true</code>) -- Transforms <code>typeof foo == "undefined"</code> into <code>foo === void 0</code>. Note: recommend to set this value to <code>false</code> for IE10 and earlier versions due to known issues.</p> </li> <li> <p dir="auto"><code>unsafe</code> (default: <code>false</code>) -- apply "unsafe" transformations (<a href="#the-unsafe-compress-option">details</a>).</p> </li> <li> <p dir="auto"><code>unsafe_arrows</code> (default: <code>false</code>) -- Convert ES5 style anonymous function expressions to arrow functions if the function body does not reference <code>this</code>. Note: it is not always safe to perform this conversion if code relies on the the function having a <code>prototype</code>, which arrow functions lack. This transform requires that the <code>ecma</code> compress option is set to <code>2015</code> or greater.</p> </li> <li> <p dir="auto"><code>unsafe_comps</code> (default: <code>false</code>) -- Reverse <code><</code> and <code><=</code> to <code>></code> and <code>>=</code> to allow improved compression. This might be unsafe when an at least one of two operands is an object with computed values due the use of methods like <code>get</code>, or <code>valueOf</code>. This could cause change in execution order after operands in the comparison are switching. Compression only works if both <code>comparisons</code> and <code>unsafe_comps</code> are both set to true.</p> </li> <li> <p dir="auto"><code>unsafe_Function</code> (default: <code>false</code>) -- compress and mangle <code>Function(args, code)</code> when both <code>args</code> and <code>code</code> are string literals.</p> </li> <li> <p dir="auto"><code>unsafe_math</code> (default: <code>false</code>) -- optimize numerical expressions like <code>2 * x * 3</code> into <code>6 * x</code>, which may give imprecise floating point results.</p> </li> <li> <p dir="auto"><code>unsafe_symbols</code> (default: <code>false</code>) -- removes keys from native Symbol declarations, e.g <code>Symbol("kDog")</code> becomes <code>Symbol()</code>.</p> </li> <li> <p dir="auto"><code>unsafe_methods</code> (default: false) -- Converts <code>{ m: function(){} }</code> to <code>{ m(){} }</code>. <code>ecma</code> must be set to <code>6</code> or greater to enable this transform. If <code>unsafe_methods</code> is a RegExp then key/value pairs with keys matching the RegExp will be converted to concise methods. Note: if enabled there is a risk of getting a "<code><method name></code> is not a constructor" TypeError should any code try to <code>new</code> the former function.</p> </li> <li> <p dir="auto"><code>unsafe_proto</code> (default: <code>false</code>) -- optimize expressions like <code>Array.prototype.slice.call(a)</code> into <code>[].slice.call(a)</code></p> </li> <li> <p dir="auto"><code>unsafe_regexp</code> (default: <code>false</code>) -- enable substitutions of variables with <code>RegExp</code> values the same way as if they are constants.</p> </li> <li> <p dir="auto"><code>unsafe_undefined</code> (default: <code>false</code>) -- substitute <code>void 0</code> if there is a variable named <code>undefined</code> in scope (variable name will be mangled, typically reduced to a single character)</p> </li> <li> <p dir="auto"><code>unused</code> (default: <code>true</code>) -- drop unreferenced functions and variables (simple direct variable assignments do not count as references unless set to <code>"keep_assign"</code>)</p> </li> </ul> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Mangle options</h2><a id="user-content-mangle-options" class="anchor" aria-label="Permalink: Mangle options" href="#mangle-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <ul dir="auto"> <li> <p dir="auto"><code>eval</code> (default <code>false</code>) -- Pass <code>true</code> to mangle names visible in scopes where <code>eval</code> or <code>with</code> are used.</p> </li> <li> <p dir="auto"><code>keep_classnames</code> (default <code>false</code>) -- Pass <code>true</code> to not mangle class names. Pass a regular expression to only keep class names matching that regex. See also: the <code>keep_classnames</code> <a href="#compress-options">compress option</a>.</p> </li> <li> <p dir="auto"><code>keep_fnames</code> (default <code>false</code>) -- Pass <code>true</code> to not mangle function names. Pass a regular expression to only keep function names matching that regex. Useful for code relying on <code>Function.prototype.name</code>. See also: the <code>keep_fnames</code> <a href="#compress-options">compress option</a>.</p> </li> <li> <p dir="auto"><code>module</code> (default <code>false</code>) -- Pass <code>true</code> an ES6 modules, where the toplevel scope is not the global scope. Implies <code>toplevel</code> and assumes input code is strict mode JS.</p> </li> <li> <p dir="auto"><code>nth_identifier</code> (default: an internal mangler that weights based on character frequency analysis) -- Pass an object with a <code>get(n)</code> function that converts an ordinal into the nth most favored (usually shortest) identifier. Optionally also provide <code>reset()</code>, <code>sort()</code>, and <code>consider(chars, delta)</code> to use character frequency analysis of the source code.</p> </li> <li> <p dir="auto"><code>reserved</code> (default <code>[]</code>) -- Pass an array of identifiers that should be excluded from mangling. Example: <code>["foo", "bar"]</code>.</p> </li> <li> <p dir="auto"><code>toplevel</code> (default <code>false</code>) -- Pass <code>true</code> to mangle names declared in the top level scope.</p> </li> <li> <p dir="auto"><code>safari10</code> (default <code>false</code>) -- Pass <code>true</code> to work around the Safari 10 loop iterator <a href="https://bugs.webkit.org/show_bug.cgi?id=171041" rel="nofollow">bug</a> "Cannot declare a let variable twice". See also: the <code>safari10</code> <a href="#format-options">format option</a>.</p> </li> </ul> <p dir="auto">Examples:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="// test.js var globalVar; function funcName(firstLongName, anotherLongName) { var myVariable = firstLongName + anotherLongName; }"><pre><span class="pl-c">// test.js</span> <span class="pl-k">var</span> <span class="pl-s1">globalVar</span><span class="pl-kos">;</span> <span class="pl-k">function</span> <span class="pl-en">funcName</span><span class="pl-kos">(</span><span class="pl-s1">firstLongName</span><span class="pl-kos">,</span> <span class="pl-s1">anotherLongName</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-k">var</span> <span class="pl-s1">myVariable</span> <span class="pl-c1">=</span> <span class="pl-s1">firstLongName</span> <span class="pl-c1">+</span> <span class="pl-s1">anotherLongName</span><span class="pl-kos">;</span> <span class="pl-kos">}</span></pre></div> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var code = fs.readFileSync("test.js", "utf8"); await minify(code).code; // 'function funcName(a,n){}var globalVar;' await minify(code, { mangle: { reserved: ['firstLongName'] } }).code; // 'function funcName(firstLongName,a){}var globalVar;' await minify(code, { mangle: { toplevel: true } }).code; // 'function n(n,a){}var a;'"><pre><span class="pl-k">var</span> <span class="pl-s1">code</span> <span class="pl-c1">=</span> <span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">readFileSync</span><span class="pl-kos">(</span><span class="pl-s">"test.js"</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s1">code</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">;</span> <span class="pl-c">// 'function funcName(a,n){}var globalVar;'</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s1">code</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">mangle</span>: <span class="pl-kos">{</span> <span class="pl-c1">reserved</span>: <span class="pl-kos">[</span><span class="pl-s">'firstLongName'</span><span class="pl-kos">]</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">;</span> <span class="pl-c">// 'function funcName(firstLongName,a){}var globalVar;'</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s1">code</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">mangle</span>: <span class="pl-kos">{</span> <span class="pl-c1">toplevel</span>: <span class="pl-c1">true</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">;</span> <span class="pl-c">// 'function n(n,a){}var a;'</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Mangle properties options</h3><a id="user-content-mangle-properties-options" class="anchor" aria-label="Permalink: Mangle properties options" href="#mangle-properties-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <ul dir="auto"> <li> <p dir="auto"><code>builtins</code> (default: <code>false</code>) — Use <code>true</code> to allow the mangling of builtin DOM properties. Not recommended to override this setting.</p> </li> <li> <p dir="auto"><code>debug</code> (default: <code>false</code>) — Mangle names with the original name still present. Pass an empty string <code>""</code> to enable, or a non-empty string to set the debug suffix.</p> </li> <li> <p dir="auto"><code>keep_quoted</code> (default: <code>false</code>) — How quoting properties (<code>{"prop": ...}</code> and <code>obj["prop"]</code>) controls what gets mangled.</p> <ul dir="auto"> <li><code>"strict"</code> (recommended) -- <code>obj.prop</code> is mangled.</li> <li><code>false</code> -- <code>obj["prop"]</code> is mangled.</li> <li><code>true</code> -- <code>obj.prop</code> is mangled unless there is <code>obj["prop"]</code> elsewhere in the code.</li> </ul> </li> <li> <p dir="auto"><code>nth_identifier</code> (default: an internal mangler that weights based on character frequency analysis) -- Pass an object with a <code>get(n)</code> function that converts an ordinal into the nth most favored (usually shortest) identifier. Optionally also provide <code>reset()</code>, <code>sort()</code>, and <code>consider(chars, delta)</code> to use character frequency analysis of the source code.</p> </li> <li> <p dir="auto"><code>regex</code> (default: <code>null</code>) — Pass a <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp" rel="nofollow">RegExp literal or pattern string</a> to only mangle property matching the regular expression.</p> </li> <li> <p dir="auto"><code>reserved</code> (default: <code>[]</code>) — Do not mangle property names listed in the <code>reserved</code> array.</p> </li> <li> <p dir="auto"><code>undeclared</code> (default: <code>false</code>) - Mangle those names when they are accessed as properties of known top level variables but their declarations are never found in input code. May be useful when only minifying parts of a project. See <a href="https://github.com/terser/terser/issues/397" data-hovercard-type="issue" data-hovercard-url="/terser/terser/issues/397/hovercard">#397</a> for more details.</p> </li> </ul> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Format options</h2><a id="user-content-format-options" class="anchor" aria-label="Permalink: Format options" href="#format-options"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">These options control the format of Terser's output code. Previously known as "output options".</p> <ul dir="auto"> <li> <p dir="auto"><code>ascii_only</code> (default <code>false</code>) -- escape Unicode characters in strings and regexps (affects directives with non-ascii characters becoming invalid)</p> </li> <li> <p dir="auto"><code>beautify</code> (default <code>false</code>) -- (DEPRECATED) whether to beautify the output. When using the legacy <code>-b</code> CLI flag, this is set to true by default.</p> </li> <li> <p dir="auto"><code>braces</code> (default <code>false</code>) -- always insert braces in <code>if</code>, <code>for</code>, <code>do</code>, <code>while</code> or <code>with</code> statements, even if their body is a single statement.</p> </li> <li> <p dir="auto"><code>comments</code> (default <code>"some"</code>) -- by default it keeps JSDoc-style comments that contain "@license", "@copyright", "@preserve" or start with <code>!</code>, pass <code>true</code> or <code>"all"</code> to preserve all comments, <code>false</code> to omit comments in the output, a regular expression string (e.g. <code>/^!/</code>) or a function.</p> </li> <li> <p dir="auto"><code>ecma</code> (default <code>5</code>) -- set desired EcmaScript standard version for output. Set <code>ecma</code> to <code>2015</code> or greater to emit shorthand object properties - i.e.: <code>{a}</code> instead of <code>{a: a}</code>. The <code>ecma</code> option will only change the output in direct control of the beautifier. Non-compatible features in your input will still be output as is. For example: an <code>ecma</code> setting of <code>5</code> will <strong>not</strong> convert modern code to ES5.</p> </li> <li> <p dir="auto"><code>indent_level</code> (default <code>4</code>)</p> </li> <li> <p dir="auto"><code>indent_start</code> (default <code>0</code>) -- prefix all lines by that many spaces</p> </li> <li> <p dir="auto"><code>inline_script</code> (default <code>true</code>) -- escape HTML comments and the slash in occurrences of <code></script></code> in strings</p> </li> <li> <p dir="auto"><code>keep_numbers</code> (default <code>false</code>) -- keep number literals as it was in original code (disables optimizations like converting <code>1000000</code> into <code>1e6</code>)</p> </li> <li> <p dir="auto"><code>keep_quoted_props</code> (default <code>false</code>) -- when turned on, prevents stripping quotes from property names in object literals.</p> </li> <li> <p dir="auto"><code>max_line_len</code> (default <code>false</code>) -- maximum line length (for minified code)</p> </li> <li> <p dir="auto"><code>preamble</code> (default <code>null</code>) -- when passed it must be a string and it will be prepended to the output literally. The source map will adjust for this text. Can be used to insert a comment containing licensing information, for example.</p> </li> <li> <p dir="auto"><code>quote_keys</code> (default <code>false</code>) -- pass <code>true</code> to quote all keys in literal objects</p> </li> <li> <p dir="auto"><code>quote_style</code> (default <code>0</code>) -- preferred quote style for strings (affects quoted property names and directives as well):</p> <ul dir="auto"> <li><code>0</code> -- prefers double quotes, switches to single quotes when there are more double quotes in the string itself. <code>0</code> is best for gzip size.</li> <li><code>1</code> -- always use single quotes</li> <li><code>2</code> -- always use double quotes</li> <li><code>3</code> -- always use the original quotes</li> </ul> </li> <li> <p dir="auto"><code>preserve_annotations</code> -- (default <code>false</code>) -- Preserve <a href="#annotations">Terser annotations</a> in the output.</p> </li> <li> <p dir="auto"><code>safari10</code> (default <code>false</code>) -- set this option to <code>true</code> to work around the <a href="https://bugs.webkit.org/show_bug.cgi?id=176685" rel="nofollow">Safari 10/11 await bug</a>. See also: the <code>safari10</code> <a href="#mangle-options">mangle option</a>.</p> </li> <li> <p dir="auto"><code>semicolons</code> (default <code>true</code>) -- separate statements with semicolons. If you pass <code>false</code> then whenever possible we will use a newline instead of a semicolon, leading to more readable output of minified code (size before gzip could be smaller; size after gzip insignificantly larger).</p> </li> <li> <p dir="auto"><code>shebang</code> (default <code>true</code>) -- preserve shebang <code>#!</code> in preamble (bash scripts)</p> </li> <li> <p dir="auto"><code>spidermonkey</code> (default <code>false</code>) -- produce a Spidermonkey (Mozilla) AST</p> </li> <li> <p dir="auto"><code>webkit</code> (default <code>false</code>) -- enable workarounds for WebKit bugs. PhantomJS users should set this option to <code>true</code>.</p> </li> <li> <p dir="auto"><code>wrap_iife</code> (default <code>false</code>) -- pass <code>true</code> to wrap immediately invoked function expressions. See <a href="https://github.com/mishoo/UglifyJS2/issues/640" data-hovercard-type="issue" data-hovercard-url="/mishoo/UglifyJS/issues/640/hovercard">#640</a> for more details.</p> </li> <li> <p dir="auto"><code>wrap_func_args</code> (default <code>true</code>) -- pass <code>false</code> if you do not want to wrap function expressions that are passed as arguments, in parenthesis. See <a href="https://github.com/nolanlawson/optimize-js">OptimizeJS</a> for more details.</p> </li> </ul> <div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto">Miscellaneous</h1><a id="user-content-miscellaneous" class="anchor" aria-label="Permalink: Miscellaneous" href="#miscellaneous"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Keeping copyright notices or other comments</h3><a id="user-content-keeping-copyright-notices-or-other-comments" class="anchor" aria-label="Permalink: Keeping copyright notices or other comments" href="#keeping-copyright-notices-or-other-comments"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">You can pass <code>--comments</code> to retain certain comments in the output. By default it will keep comments starting with "!" and JSDoc-style comments that contain "@preserve", "@copyright", "@license" or "@cc_on" (conditional compilation for IE). You can pass <code>--comments all</code> to keep all the comments, or a valid JavaScript regexp to keep only comments that match this regexp. For example <code>--comments /^!/</code> will keep comments like <code>/*! Copyright Notice */</code>.</p> <p dir="auto">Note, however, that there might be situations where comments are lost. For example:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="function f() { /** @preserve Foo Bar */ function g() { // this function is never called } return something(); }"><pre><span class="pl-k">function</span> <span class="pl-en">f</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-c">/** <span class="pl-k">@preserve</span> Foo Bar */</span> <span class="pl-k">function</span> <span class="pl-en">g</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-c">// this function is never called</span> <span class="pl-kos">}</span> <span class="pl-k">return</span> <span class="pl-en">something</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-kos">}</span></pre></div> <p dir="auto">Even though it has "@preserve", the comment will be lost because the inner function <code>g</code> (which is the AST node to which the comment is attached to) is discarded by the compressor as not referenced.</p> <p dir="auto">The safest comments where to place copyright information (or other info that needs to be kept in the output) are comments attached to toplevel nodes.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">The <code>unsafe</code> <code>compress</code> option</h3><a id="user-content-the-unsafe-compress-option" class="anchor" aria-label="Permalink: The unsafecompress option" href="#the-unsafe-compress-option"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">It enables some transformations that <em>might</em> break code logic in certain contrived cases, but should be fine for most code. It assumes that standard built-in ECMAScript functions and classes have not been altered or replaced. You might want to try it on your own code; it should reduce the minified size. Some examples of the optimizations made when this option is enabled:</p> <ul dir="auto"> <li><code>new Array(1, 2, 3)</code> or <code>Array(1, 2, 3)</code> → <code>[ 1, 2, 3 ]</code></li> <li><code>Array.from([1, 2, 3])</code> → <code>[1, 2, 3]</code></li> <li><code>new Object()</code> → <code>{}</code></li> <li><code>String(exp)</code> or <code>exp.toString()</code> → <code>"" + exp</code></li> <li><code>new Object/RegExp/Function/Error/Array (...)</code> → we discard the <code>new</code></li> <li><code>"foo bar".substr(4)</code> → <code>"bar"</code></li> </ul> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Conditional compilation</h3><a id="user-content-conditional-compilation" class="anchor" aria-label="Permalink: Conditional compilation" href="#conditional-compilation"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">You can use the <code>--define</code> (<code>-d</code>) switch in order to declare global variables that Terser will assume to be constants (unless defined in scope). For example if you pass <code>--define DEBUG=false</code> then, coupled with dead code removal Terser will discard the following from the output:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="if (DEBUG) { console.log("debug stuff"); }"><pre><span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-c1">DEBUG</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s">"debug stuff"</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-kos">}</span></pre></div> <p dir="auto">You can specify nested constants in the form of <code>--define env.DEBUG=false</code>.</p> <p dir="auto">Another way of doing that is to declare your globals as constants in a separate file and include it into the build. For example you can have a <code>build/defines.js</code> file with the following:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var DEBUG = false; var PRODUCTION = true; // etc."><pre><span class="pl-k">var</span> <span class="pl-c1">DEBUG</span> <span class="pl-c1">=</span> <span class="pl-c1">false</span><span class="pl-kos">;</span> <span class="pl-k">var</span> <span class="pl-c1">PRODUCTION</span> <span class="pl-c1">=</span> <span class="pl-c1">true</span><span class="pl-kos">;</span> <span class="pl-c">// etc.</span></pre></div> <p dir="auto">and build your code like this:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="terser build/defines.js js/foo.js js/bar.js... -c"><pre class="notranslate"><code>terser build/defines.js js/foo.js js/bar.js... -c </code></pre></div> <p dir="auto">Terser will notice the constants and, since they cannot be altered, it will evaluate references to them to the value itself and drop unreachable code as usual. The build will contain the <code>const</code> declarations if you use them. If you are targeting < ES6 environments which does not support <code>const</code>, using <code>var</code> with <code>reduce_vars</code> (enabled by default) should suffice.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Conditional compilation API</h3><a id="user-content-conditional-compilation-api" class="anchor" aria-label="Permalink: Conditional compilation API" href="#conditional-compilation-api"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">You can also use conditional compilation via the programmatic API. With the difference that the property name is <code>global_defs</code> and is a compressor property:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="var result = await minify(fs.readFileSync("input.js", "utf8"), { compress: { dead_code: true, global_defs: { DEBUG: false } } });"><pre><span class="pl-k">var</span> <span class="pl-s1">result</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">readFileSync</span><span class="pl-kos">(</span><span class="pl-s">"input.js"</span><span class="pl-kos">,</span> <span class="pl-s">"utf8"</span><span class="pl-kos">)</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">compress</span>: <span class="pl-kos">{</span> <span class="pl-c1">dead_code</span>: <span class="pl-c1">true</span><span class="pl-kos">,</span> <span class="pl-c1">global_defs</span>: <span class="pl-kos">{</span> <span class="pl-c1">DEBUG</span>: <span class="pl-c1">false</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">To replace an identifier with an arbitrary non-constant expression it is necessary to prefix the <code>global_defs</code> key with <code>"@"</code> to instruct Terser to parse the value as an expression:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="await minify("alert('hello');", { compress: { global_defs: { "@alert": "console.log" } } }).code; // returns: 'console.log("hello");'"><pre><span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s">"alert('hello');"</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">compress</span>: <span class="pl-kos">{</span> <span class="pl-c1">global_defs</span>: <span class="pl-kos">{</span> <span class="pl-s">"@alert"</span>: <span class="pl-s">"console.log"</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">;</span> <span class="pl-c">// returns: 'console.log("hello");'</span></pre></div> <p dir="auto">Otherwise it would be replaced as string literal:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="await minify("alert('hello');", { compress: { global_defs: { "alert": "console.log" } } }).code; // returns: '"console.log"("hello");'"><pre><span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s">"alert('hello');"</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">compress</span>: <span class="pl-kos">{</span> <span class="pl-c1">global_defs</span>: <span class="pl-kos">{</span> <span class="pl-s">"alert"</span>: <span class="pl-s">"console.log"</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-c1">code</span><span class="pl-kos">;</span> <span class="pl-c">// returns: '"console.log"("hello");'</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Annotations</h3><a id="user-content-annotations" class="anchor" aria-label="Permalink: Annotations" href="#annotations"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Annotations in Terser are a way to tell it to treat a certain function call differently. The following annotations are available:</p> <ul dir="auto"> <li><code>/*@__INLINE__*/</code> - forces a function to be inlined somewhere.</li> <li><code>/*@__NOINLINE__*/</code> - Makes sure the called function is not inlined into the call site.</li> <li><code>/*@__PURE__*/</code> - Marks a function call as pure. That means, it can safely be dropped.</li> <li><code>/*@__KEY__*/</code> - Marks a string literal as a property to also mangle it when mangling properties.</li> <li><code>/*@__MANGLE_PROP__*/</code> - Opts-in an object property (or class field) for mangling, when the property mangler is enabled.</li> </ul> <p dir="auto">You can use either a <code>@</code> sign at the start, or a <code>#</code>.</p> <p dir="auto">Here are some examples on how to use them:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="/*@__INLINE__*/ function_always_inlined_here() /*#__NOINLINE__*/ function_cant_be_inlined_into_here() const x = /*#__PURE__*/i_am_dropped_if_x_is_not_used() function lookup(object, key) { return object[key]; } lookup({ i_will_be_mangled_too: "bar" }, /*@__KEY__*/ "i_will_be_mangled_too");"><pre><span class="pl-c">/*<span class="pl-k">@__INLINE__</span>*/</span> <span class="pl-en">function_always_inlined_here</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-c">/*#__NOINLINE__*/</span> <span class="pl-en">function_cant_be_inlined_into_here</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-k">const</span> <span class="pl-s1">x</span> <span class="pl-c1">=</span> <span class="pl-c">/*#__PURE__*/</span><span class="pl-en">i_am_dropped_if_x_is_not_used</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-k">function</span> <span class="pl-en">lookup</span><span class="pl-kos">(</span><span class="pl-s1">object</span><span class="pl-kos">,</span> <span class="pl-s1">key</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-k">return</span> <span class="pl-s1">object</span><span class="pl-kos">[</span><span class="pl-s1">key</span><span class="pl-kos">]</span><span class="pl-kos">;</span> <span class="pl-kos">}</span> <span class="pl-en">lookup</span><span class="pl-kos">(</span><span class="pl-kos">{</span> <span class="pl-c1">i_will_be_mangled_too</span>: <span class="pl-s">"bar"</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-c">/*<span class="pl-k">@__KEY__</span>*/</span> <span class="pl-s">"i_will_be_mangled_too"</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">ESTree / SpiderMonkey AST</h3><a id="user-content-estree--spidermonkey-ast" class="anchor" aria-label="Permalink: ESTree / SpiderMonkey AST" href="#estree--spidermonkey-ast"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Terser has its own abstract syntax tree format; for <a href="http://lisperator.net/blog/uglifyjs-why-not-switching-to-spidermonkey-ast/" rel="nofollow">practical reasons</a> we can't easily change to using the SpiderMonkey AST internally. However, Terser now has a converter which can import a SpiderMonkey AST.</p> <p dir="auto">For example <a href="https://github.com/acornjs/acorn">Acorn</a> is a super-fast parser that produces a SpiderMonkey AST. It has a small CLI utility that parses one file and dumps the AST in JSON on the standard output. To use Terser to mangle and compress that:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="acorn file.js | terser -p spidermonkey -m -c"><pre class="notranslate"><code>acorn file.js | terser -p spidermonkey -m -c </code></pre></div> <p dir="auto">The <code>-p spidermonkey</code> option tells Terser that all input files are not JavaScript, but JS code described in SpiderMonkey AST in JSON. Therefore we don't use our own parser in this case, but just transform that AST into our internal AST.</p> <p dir="auto"><code>spidermonkey</code> is also available in <code>minify</code> as <code>parse</code> and <code>format</code> options to accept and/or produce a spidermonkey AST.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Use Acorn for parsing</h3><a id="user-content-use-acorn-for-parsing" class="anchor" aria-label="Permalink: Use Acorn for parsing" href="#use-acorn-for-parsing"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">More for fun, I added the <code>-p acorn</code> option which will use Acorn to do all the parsing. If you pass this option, Terser will <code>require("acorn")</code>.</p> <p dir="auto">Acorn is really fast (e.g. 250ms instead of 380ms on some 650K code), but converting the SpiderMonkey tree that Acorn produces takes another 150ms so in total it's a bit more than just using Terser's own parser.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Terser Fast Minify Mode</h3><a id="user-content-terser-fast-minify-mode" class="anchor" aria-label="Permalink: Terser Fast Minify Mode" href="#terser-fast-minify-mode"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">It's not well known, but whitespace removal and symbol mangling accounts for 95% of the size reduction in minified code for most JavaScript - not elaborate code transforms. One can simply disable <code>compress</code> to speed up Terser builds by 3 to 4 times.</p> <markdown-accessiblity-table><table> <thead> <tr> <th>d3.js</th> <th align="right">size</th> <th align="right">gzip size</th> <th align="right">time (s)</th> </tr> </thead> <tbody> <tr> <td>original</td> <td align="right">451,131</td> <td align="right">108,733</td> <td align="right">-</td> </tr> <tr> <td>terser@3.7.5 mangle=false, compress=false</td> <td align="right">316,600</td> <td align="right">85,245</td> <td align="right">0.82</td> </tr> <tr> <td>terser@3.7.5 mangle=true, compress=false</td> <td align="right">220,216</td> <td align="right">72,730</td> <td align="right">1.45</td> </tr> <tr> <td>terser@3.7.5 mangle=true, compress=true</td> <td align="right">212,046</td> <td align="right">70,954</td> <td align="right">5.87</td> </tr> <tr> <td>babili@0.1.4</td> <td align="right">210,713</td> <td align="right">72,140</td> <td align="right">12.64</td> </tr> <tr> <td>babel-minify@0.4.3</td> <td align="right">210,321</td> <td align="right">72,242</td> <td align="right">48.67</td> </tr> <tr> <td>babel-minify@0.5.0-alpha.01eac1c3</td> <td align="right">210,421</td> <td align="right">72,238</td> <td align="right">14.17</td> </tr> </tbody> </table></markdown-accessiblity-table> <p dir="auto">To enable fast minify mode from the CLI use:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="terser file.js -m"><pre class="notranslate"><code>terser file.js -m </code></pre></div> <p dir="auto">To enable fast minify mode with the API use:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="await minify(code, { compress: false, mangle: true });"><pre><span class="pl-k">await</span> <span class="pl-en">minify</span><span class="pl-kos">(</span><span class="pl-s1">code</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">compress</span>: <span class="pl-c1">false</span><span class="pl-kos">,</span> <span class="pl-c1">mangle</span>: <span class="pl-c1">true</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <div class="markdown-heading" dir="auto"><h4 tabindex="-1" class="heading-element" dir="auto">Source maps and debugging</h4><a id="user-content-source-maps-and-debugging" class="anchor" aria-label="Permalink: Source maps and debugging" href="#source-maps-and-debugging"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Various <code>compress</code> transforms that simplify, rearrange, inline and remove code are known to have an adverse effect on debugging with source maps. This is expected as code is optimized and mappings are often simply not possible as some code no longer exists. For highest fidelity in source map debugging disable the <code>compress</code> option and just use <code>mangle</code>.</p> <p dir="auto">When debugging, make sure you enable the <strong>"map scopes"</strong> feature to map mangled variable names back to their original names.<br> Without this, all variable values will be <code>undefined</code>. See <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="1656067874" data-permission-text="Title is private" data-url="https://github.com/terser/terser/issues/1367" data-hovercard-type="issue" data-hovercard-url="/terser/terser/issues/1367/hovercard" href="https://github.com/terser/terser/issues/1367">#1367</a> for more details. <br><br></p> <p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/27283110/230441652-ac5cf6b0-5dc5-4ffc-9d8b-bd02875484f4.png"><img src="https://user-images.githubusercontent.com/27283110/230441652-ac5cf6b0-5dc5-4ffc-9d8b-bd02875484f4.png" alt="image" style="max-width: 100%;"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Compiler assumptions</h3><a id="user-content-compiler-assumptions" class="anchor" aria-label="Permalink: Compiler assumptions" href="#compiler-assumptions"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">To allow for better optimizations, the compiler makes various assumptions:</p> <ul dir="auto"> <li><code>.toString()</code> and <code>.valueOf()</code> don't have side effects, and for built-in objects they have not been overridden.</li> <li><code>undefined</code>, <code>NaN</code> and <code>Infinity</code> have not been externally redefined.</li> <li><code>arguments.callee</code>, <code>arguments.caller</code> and <code>Function.prototype.caller</code> are not used.</li> <li>The code doesn't expect the contents of <code>Function.prototype.toString()</code> or <code>Error.prototype.stack</code> to be anything in particular.</li> <li>Getting and setting properties on a plain object does not cause other side effects (using <code>.watch()</code> or <code>Proxy</code>).</li> <li>Object properties can be added, removed and modified (not prevented with <code>Object.defineProperty()</code>, <code>Object.defineProperties()</code>, <code>Object.freeze()</code>, <code>Object.preventExtensions()</code> or <code>Object.seal()</code>).</li> <li><code>document.all</code> is not <code>== null</code></li> <li>Assigning properties to a class doesn't have side effects and does not throw.</li> </ul> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Build Tools and Adaptors using Terser</h3><a id="user-content-build-tools-and-adaptors-using-terser" class="anchor" aria-label="Permalink: Build Tools and Adaptors using Terser" href="#build-tools-and-adaptors-using-terser"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><a href="https://www.npmjs.com/browse/depended/terser" rel="nofollow">https://www.npmjs.com/browse/depended/terser</a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Replacing <code>uglify-es</code> with <code>terser</code> in a project using <code>yarn</code></h3><a id="user-content-replacing-uglify-es-with-terser-in-a-project-using-yarn" class="anchor" aria-label="Permalink: Replacing uglify-es with terser in a project using yarn" href="#replacing-uglify-es-with-terser-in-a-project-using-yarn"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">A number of JS bundlers and uglify wrappers are still using buggy versions of <code>uglify-es</code> and have not yet upgraded to <code>terser</code>. If you are using <code>yarn</code> you can add the following alias to your project's <code>package.json</code> file:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" "resolutions": { "uglify-es": "npm:terser" }"><pre> <span class="pl-s">"resolutions"</span>: <span class="pl-kos">{</span> <span class="pl-s">"uglify-es"</span>: <span class="pl-s">"npm:terser"</span> <span class="pl-kos">}</span></pre></div> <p dir="auto">to use <code>terser</code> instead of <code>uglify-es</code> in all deeply nested dependencies without changing any code.</p> <p dir="auto">Note: for this change to take effect you must run the following commands to remove the existing <code>yarn</code> lock file and reinstall all packages:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="$ rm -rf node_modules yarn.lock $ yarn"><pre class="notranslate"><code>$ rm -rf node_modules yarn.lock $ yarn </code></pre></div> <div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto">Reporting issues</h1><a id="user-content-reporting-issues" class="anchor" aria-label="Permalink: Reporting issues" href="#reporting-issues"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">A minimal, reproducible example</h2><a id="user-content-a-minimal-reproducible-example" class="anchor" aria-label="Permalink: A minimal, reproducible example" href="#a-minimal-reproducible-example"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">You're expected to provide a [minimal reproducible example] of input code that will demonstrate your issue.</p> <p dir="auto">To get to this example, you can remove bits of your code and stop if your issue ceases to reproduce.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Obtaining the source code given to Terser</h2><a id="user-content-obtaining-the-source-code-given-to-terser" class="anchor" aria-label="Permalink: Obtaining the source code given to Terser" href="#obtaining-the-source-code-given-to-terser"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Because users often don't control the call to <code>await minify()</code> or its arguments, Terser provides a <code>TERSER_DEBUG_DIR</code> environment variable to make terser output some debug logs.</p> <p dir="auto">These logs will contain the input code and options of each <code>minify()</code> call.</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="TERSER_DEBUG_DIR=/tmp/terser-log-dir command-that-uses-terser ls /tmp/terser-log-dir terser-debug-123456.log"><pre>TERSER_DEBUG_DIR=/tmp/terser-log-dir command-that-uses-terser ls /tmp/terser-log-dir terser-debug-123456.log</pre></div> <p dir="auto">If you're not sure how to set an environment variable on your shell (the above example works in bash), you can try using cross-env:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="> npx cross-env TERSER_DEBUG_DIR=/path/to/logs command-that-uses-terser"><pre class="notranslate"><code>> npx cross-env TERSER_DEBUG_DIR=/path/to/logs command-that-uses-terser </code></pre></div> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Stack traces</h2><a id="user-content-stack-traces" class="anchor" aria-label="Permalink: Stack traces" href="#stack-traces"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">In the terser CLI we use <a href="https://npmjs.com/source-map-support" rel="nofollow">source-map-support</a> to produce good error stacks. In your own app, you're expected to enable source-map-support (read their docs) to have nice stack traces that will help you write good issues.</p> <div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto">README.md Patrons:</h1><a id="user-content-readmemd-patrons" class="anchor" aria-label="Permalink: README.md Patrons:" href="#readmemd-patrons"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><em>note</em>: <s>You can support this project on patreon: [link]</s> <strong>The Terser Patreon is shutting down in favor of opencollective</strong>. Check out <a href="https://github.com/terser/terser/blob/master/PATRONS.md">PATRONS.md</a> for our first-tier patrons.</p> <p dir="auto">These are the second-tier patrons. Great thanks for your support!</p> <ul dir="auto"> <li>CKEditor <a target="_blank" rel="noopener noreferrer nofollow" href="https://camo.githubusercontent.com/242a7da11b383a20e29526e476a8c7c06e62d8f8a11ba313b5363f64c26bb317/68747470733a2f2f6331302e70617472656f6e75736572636f6e74656e742e636f6d2f332f65794a6f496a6f784d444173496e63694f6a45774d48302533442f70617472656f6e2d6d656469612f702f757365722f31353435323237382f66383534386463663438643734303631393037316538643631343435393238302f313f746f6b656e2d74696d653d3231343539313638303026746f6b656e2d686173683d5349513534506849504876334d3743567a394c7853385f387634734f77344833303448615873586a384d4d253344"><img src="https://camo.githubusercontent.com/242a7da11b383a20e29526e476a8c7c06e62d8f8a11ba313b5363f64c26bb317/68747470733a2f2f6331302e70617472656f6e75736572636f6e74656e742e636f6d2f332f65794a6f496a6f784d444173496e63694f6a45774d48302533442f70617472656f6e2d6d656469612f702f757365722f31353435323237382f66383534386463663438643734303631393037316538643631343435393238302f313f746f6b656e2d74696d653d3231343539313638303026746f6b656e2d686173683d5349513534506849504876334d3743567a394c7853385f387634734f77344833303448615873586a384d4d253344" alt="" data-canonical-src="https://c10.patreonusercontent.com/3/eyJoIjoxMDAsInciOjEwMH0%3D/patreon-media/p/user/15452278/f8548dcf48d740619071e8d614459280/1?token-time=2145916800&token-hash=SIQ54PhIPHv3M7CVz9LxS8_8v4sOw4H304HaXsXj8MM%3D" style="max-width: 100%;"></a></li> <li>38elements <a target="_blank" rel="noopener noreferrer nofollow" href="https://camo.githubusercontent.com/2ad2bc8899bb7bcd268e1fddef0505e37cb8d9fcaf21f22f47aa08c0be5ea359/68747470733a2f2f6331302e70617472656f6e75736572636f6e74656e742e636f6d2f332f65794a33496a6f794d4442392f70617472656f6e2d6d656469612f702f757365722f31323530313834342f38386537666335646436326434356336613536323635333362626434386366622f313f746f6b656e2d74696d653d3231343539313638303026746f6b656e2d686173683d63334173513554304951576963307a4b784648752d624747514a6b585146766166764a3462506572465234253344"><img src="https://camo.githubusercontent.com/2ad2bc8899bb7bcd268e1fddef0505e37cb8d9fcaf21f22f47aa08c0be5ea359/68747470733a2f2f6331302e70617472656f6e75736572636f6e74656e742e636f6d2f332f65794a33496a6f794d4442392f70617472656f6e2d6d656469612f702f757365722f31323530313834342f38386537666335646436326434356336613536323635333362626434386366622f313f746f6b656e2d74696d653d3231343539313638303026746f6b656e2d686173683d63334173513554304951576963307a4b784648752d624747514a6b585146766166764a3462506572465234253344" alt="" data-canonical-src="https://c10.patreonusercontent.com/3/eyJ3IjoyMDB9/patreon-media/p/user/12501844/88e7fc5dd62d45c6a5626533bbd48cfb/1?token-time=2145916800&token-hash=c3AsQ5T0IQWic0zKxFHu-bGGQJkXQFvafvJ4bPerFR4%3D" style="max-width: 100%;"></a></li> </ul> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Contributors</h2><a id="user-content-contributors" class="anchor" aria-label="Permalink: Contributors" href="#contributors"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Code Contributors</h3><a id="user-content-code-contributors" class="anchor" aria-label="Permalink: Code Contributors" href="#code-contributors"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">This project exists thanks to all the people who contribute. [<a href="/terser/terser/blob/master/CONTRIBUTING.md">Contribute</a>]. <a href="https://github.com/terser/terser/graphs/contributors"><img src="https://camo.githubusercontent.com/18e7d502b3e849d28473927f589e1172b168abb8a38771539f96fdd96ffb8aad/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f636f6e7472696275746f72732e7376673f77696474683d38393026627574746f6e3d66616c7365" data-canonical-src="https://opencollective.com/terser/contributors.svg?width=890&button=false" style="max-width: 100%;"></a></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Financial Contributors</h3><a id="user-content-financial-contributors" class="anchor" aria-label="Permalink: Financial Contributors" href="#financial-contributors"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Become a financial contributor and help us sustain our community. [<a href="https://opencollective.com/terser/contribute" rel="nofollow">Contribute</a>]</p> <div class="markdown-heading" dir="auto"><h4 tabindex="-1" class="heading-element" dir="auto">Individuals</h4><a id="user-content-individuals" class="anchor" aria-label="Permalink: Individuals" href="#individuals"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><a href="https://opencollective.com/terser" rel="nofollow"><img src="https://camo.githubusercontent.com/568b5abb472e904a54787148c74684a458ad7adb4964f6123e10d17c581a1dfb/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f696e646976696475616c732e7376673f77696474683d383930" data-canonical-src="https://opencollective.com/terser/individuals.svg?width=890" style="max-width: 100%;"></a></p> <div class="markdown-heading" dir="auto"><h4 tabindex="-1" class="heading-element" dir="auto">Organizations</h4><a id="user-content-organizations" class="anchor" aria-label="Permalink: Organizations" href="#organizations"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Support this project with your organization. Your logo will show up here with a link to your website. [<a href="https://opencollective.com/terser/contribute" rel="nofollow">Contribute</a>]</p> <p dir="auto"><a href="https://opencollective.com/terser/organization/0/website" rel="nofollow"><img src="https://camo.githubusercontent.com/4fdf2b463741f87db5c3f0216c31de393bd9a45615bee326d1d2fd3e3619a5a2/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f302f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/0/avatar.svg" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser/organization/1/website" rel="nofollow"><img src="https://camo.githubusercontent.com/5c471ca02d56b35d1e5ff961425af41772eedc3f0a0685753ae328bbd3707f22/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f312f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/1/avatar.svg" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser/organization/2/website" rel="nofollow"><img src="https://camo.githubusercontent.com/1cb7250e7656c0d1f4c639978d72d9cd707ee7568e8d7a0be5c886561f20da98/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f322f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/2/avatar.svg" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser/organization/3/website" rel="nofollow"><img src="https://camo.githubusercontent.com/c985d8ea970e3d059a99da70f569f27c4b17dcf494e7a14c0f07279a03e03c3d/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f332f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/3/avatar.svg" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser/organization/4/website" rel="nofollow"><img src="https://camo.githubusercontent.com/df5af7214926c709e0e06b743b1658f40ec7ead7bc1b59677d5f488f7a64596e/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f342f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/4/avatar.svg" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser/organization/5/website" rel="nofollow"><img src="https://camo.githubusercontent.com/0b35c6fcdd60d35d08bc88b740e2016bd6f21f07aeb8d8342c192a1eb141c405/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f352f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/5/avatar.svg" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser/organization/6/website" rel="nofollow"><img src="https://camo.githubusercontent.com/b3e55932975ec6d9a5997679ed4b82e68129d75d4980a278b7955b3a880789d9/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f362f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/6/avatar.svg" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser/organization/7/website" rel="nofollow"><img src="https://camo.githubusercontent.com/98cc5f2c6e913b2d8001b719efda1f56083cf7106576fc161085966c6ce9e6e5/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f372f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/7/avatar.svg" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser/organization/8/website" rel="nofollow"><img src="https://camo.githubusercontent.com/18ec33e472ab228cfd6a44fa30aaf1ab2ca1468d045b6556a6678a21d5b857e1/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f382f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/8/avatar.svg" style="max-width: 100%;"></a> <a href="https://opencollective.com/terser/organization/9/website" rel="nofollow"><img src="https://camo.githubusercontent.com/b19319543ecdf5894c40c5921cecac5914618b63e9fe720a33157b0944218111/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f7465727365722f6f7267616e697a6174696f6e2f392f6176617461722e737667" data-canonical-src="https://opencollective.com/terser/organization/9/avatar.svg" style="max-width: 100%;"></a></p> </article></div></div></div></div></div>   <script type="application/json" id="__PRIMER_DATA_:R0:__">{"resolvedServerColorMode":"day"}</script></div> </react-partial> <input type="hidden" data-csrf="true" value="f0Gf5CuWPoFEf8Foejjbq/9kf2pNKByrtdOfwkF3ZfYE2nUdkioKzhJuWXK5v11s6Jo8xk+UMDSEmqRsvRoBjg==" /> </div> <div data-view-component="true" class="Layout-sidebar"> <div class="BorderGrid about-margin" data-pjax> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <div class="hide-sm hide-md"> <h2 class="mb-3 h4">About</h2> <p class="f4 my-3"> 🗜 JavaScript parser, mangler and compressor toolkit for ES6+ </p> <div class="my-3 d-flex flex-items-center"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link flex-shrink-0 mr-2"> <path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path> </svg> <span class="flex-auto min-width-0 css-truncate css-truncate-target width-fit"> <a title="https://terser.org" role="link" target="_blank" rel="noopener noreferrer nofollow" class="text-bold" href="https://terser.org">terser.org</a> </span> </div> <h3 class="sr-only">Topics</h3> <div class="my-3"> <div class="f6"> <a href="/topics/javascript" title="Topic: javascript" data-view-component="true" class="topic-tag topic-tag-link"> javascript </a> <a href="/topics/parser" title="Topic: parser" data-view-component="true" class="topic-tag topic-tag-link"> parser </a> <a href="/topics/es6" title="Topic: es6" data-view-component="true" class="topic-tag topic-tag-link"> es6 </a> <a href="/topics/uglifyjs" title="Topic: uglifyjs" data-view-component="true" class="topic-tag topic-tag-link"> uglifyjs </a> <a href="/topics/compressor" title="Topic: compressor" data-view-component="true" class="topic-tag topic-tag-link"> compressor </a> <a href="/topics/mangler" title="Topic: mangler" data-view-component="true" class="topic-tag topic-tag-link"> mangler </a> </div> </div> <h3 class="sr-only">Resources</h3> <div class="mt-2"> <a class="Link--muted" data-analytics-event="{"category":"Repository Overview","action":"click","label":"location:sidebar;file:readme"}" href="#readme-ov-file"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-book mr-2"> <path d="M0 1.75A.75.75 0 0 1 .75 1h4.253c1.227 0 2.317.59 3 1.501A3.743 3.743 0 0 1 11.006 1h4.245a.75.75 0 0 1 .75.75v10.5a.75.75 0 0 1-.75.75h-4.507a2.25 2.25 0 0 0-1.591.659l-.622.621a.75.75 0 0 1-1.06 0l-.622-.621A2.25 2.25 0 0 0 5.258 13H.75a.75.75 0 0 1-.75-.75Zm7.251 10.324.004-5.073-.002-2.253A2.25 2.25 0 0 0 5.003 2.5H1.5v9h3.757a3.75 3.75 0 0 1 1.994.574ZM8.755 4.75l-.004 7.322a3.752 3.752 0 0 1 1.992-.572H14.5v-9h-3.495a2.25 2.25 0 0 0-2.25 2.25Z"></path> </svg> Readme </a> </div> <h3 class="sr-only">License</h3> <div class="mt-2"> <a href="#License-1-ov-file" class="Link--muted" data-analytics-event="{"category":"Repository Overview","action":"click","label":"location:sidebar;file:license"}" > <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-law mr-2"> <path d="M8.75.75V2h.985c.304 0 .603.08.867.231l1.29.736c.038.022.08.033.124.033h2.234a.75.75 0 0 1 0 1.5h-.427l2.111 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.006.005-.01.01-.045.04c-.21.176-.441.327-.686.45C14.556 10.78 13.88 11 13 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L12.178 4.5h-.162c-.305 0-.604-.079-.868-.231l-1.29-.736a.245.245 0 0 0-.124-.033H8.75V13h2.5a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1 0-1.5h2.5V3.5h-.984a.245.245 0 0 0-.124.033l-1.289.737c-.265.15-.564.23-.869.23h-.162l2.112 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.016.015-.045.04c-.21.176-.441.327-.686.45C4.556 10.78 3.88 11 3 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L2.178 4.5H1.75a.75.75 0 0 1 0-1.5h2.234a.249.249 0 0 0 .125-.033l1.288-.737c.265-.15.564-.23.869-.23h.984V.75a.75.75 0 0 1 1.5 0Zm2.945 8.477c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L13 6.327Zm-10 0c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L3 6.327Z"></path> </svg> View license </a> </div> <h3 class="sr-only">Security policy</h3> <div class="mt-2"> <a href="#security-ov-file" class="Link--muted" data-analytics-event="{"category":"Repository Overview","action":"click","label":"location:sidebar;file:security policy"}" > <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-law mr-2"> <path d="M8.75.75V2h.985c.304 0 .603.08.867.231l1.29.736c.038.022.08.033.124.033h2.234a.75.75 0 0 1 0 1.5h-.427l2.111 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.006.005-.01.01-.045.04c-.21.176-.441.327-.686.45C14.556 10.78 13.88 11 13 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L12.178 4.5h-.162c-.305 0-.604-.079-.868-.231l-1.29-.736a.245.245 0 0 0-.124-.033H8.75V13h2.5a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1 0-1.5h2.5V3.5h-.984a.245.245 0 0 0-.124.033l-1.289.737c-.265.15-.564.23-.869.23h-.162l2.112 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.016.015-.045.04c-.21.176-.441.327-.686.45C4.556 10.78 3.88 11 3 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L2.178 4.5H1.75a.75.75 0 0 1 0-1.5h2.234a.249.249 0 0 0 .125-.033l1.288-.737c.265-.15.564-.23.869-.23h.984V.75a.75.75 0 0 1 1.5 0Zm2.945 8.477c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L13 6.327Zm-10 0c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L3 6.327Z"></path> </svg> Security policy </a> </div> <include-fragment src="/terser/terser/hovercards/citation/sidebar_partial?tree_name=master"> </include-fragment> <div class="mt-2"> <a href="/terser/terser/activity" data-view-component="true" class="Link Link--muted"><svg text="gray" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-pulse mr-2"> <path d="M6 2c.306 0 .582.187.696.471L10 10.731l1.304-3.26A.751.751 0 0 1 12 7h3.25a.75.75 0 0 1 0 1.5h-2.742l-1.812 4.528a.751.751 0 0 1-1.392 0L6 4.77 4.696 8.03A.75.75 0 0 1 4 8.5H.75a.75.75 0 0 1 0-1.5h2.742l1.812-4.529A.751.751 0 0 1 6 2Z"></path> </svg> <span class="color-fg-muted">Activity</span></a> </div> <div class="mt-2"> <a href="/terser/terser/custom-properties" data-view-component="true" class="Link Link--muted"><svg text="gray" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-note mr-2"> <path d="M0 3.75C0 2.784.784 2 1.75 2h12.5c.966 0 1.75.784 1.75 1.75v8.5A1.75 1.75 0 0 1 14.25 14H1.75A1.75 1.75 0 0 1 0 12.25Zm1.75-.25a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-8.5a.25.25 0 0 0-.25-.25ZM3.5 6.25a.75.75 0 0 1 .75-.75h7a.75.75 0 0 1 0 1.5h-7a.75.75 0 0 1-.75-.75Zm.75 2.25h4a.75.75 0 0 1 0 1.5h-4a.75.75 0 0 1 0-1.5Z"></path> </svg> <span class="color-fg-muted">Custom properties</span></a> </div> <h3 class="sr-only">Stars</h3> <div class="mt-2"> <a href="/terser/terser/stargazers" data-view-component="true" class="Link Link--muted"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-star mr-2"> <path d="M8 .25a.75.75 0 0 1 .673.418l1.882 3.815 4.21.612a.75.75 0 0 1 .416 1.279l-3.046 2.97.719 4.192a.751.751 0 0 1-1.088.791L8 12.347l-3.766 1.98a.75.75 0 0 1-1.088-.79l.72-4.194L.818 6.374a.75.75 0 0 1 .416-1.28l4.21-.611L7.327.668A.75.75 0 0 1 8 .25Zm0 2.445L6.615 5.5a.75.75 0 0 1-.564.41l-3.097.45 2.24 2.184a.75.75 0 0 1 .216.664l-.528 3.084 2.769-1.456a.75.75 0 0 1 .698 0l2.77 1.456-.53-3.084a.75.75 0 0 1 .216-.664l2.24-2.183-3.096-.45a.75.75 0 0 1-.564-.41L8 2.694Z"></path> </svg> <strong>8.9k</strong> stars</a> </div> <h3 class="sr-only">Watchers</h3> <div class="mt-2"> <a href="/terser/terser/watchers" data-view-component="true" class="Link Link--muted"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-eye mr-2"> <path d="M8 2c1.981 0 3.671.992 4.933 2.078 1.27 1.091 2.187 2.345 2.637 3.023a1.62 1.62 0 0 1 0 1.798c-.45.678-1.367 1.932-2.637 3.023C11.67 13.008 9.981 14 8 14c-1.981 0-3.671-.992-4.933-2.078C1.797 10.83.88 9.576.43 8.898a1.62 1.62 0 0 1 0-1.798c.45-.677 1.367-1.931 2.637-3.022C4.33 2.992 6.019 2 8 2ZM1.679 7.932a.12.12 0 0 0 0 .136c.411.622 1.241 1.75 2.366 2.717C5.176 11.758 6.527 12.5 8 12.5c1.473 0 2.825-.742 3.955-1.715 1.124-.967 1.954-2.096 2.366-2.717a.12.12 0 0 0 0-.136c-.412-.621-1.242-1.75-2.366-2.717C10.824 4.242 9.473 3.5 8 3.5c-1.473 0-2.825.742-3.955 1.715-1.124.967-1.954 2.096-2.366 2.717ZM8 10a2 2 0 1 1-.001-3.999A2 2 0 0 1 8 10Z"></path> </svg> <strong>43</strong> watching</a> </div> <h3 class="sr-only">Forks</h3> <div class="mt-2"> <a href="/terser/terser/forks" data-view-component="true" class="Link Link--muted"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo-forked mr-2"> <path d="M5 5.372v.878c0 .414.336.75.75.75h4.5a.75.75 0 0 0 .75-.75v-.878a2.25 2.25 0 1 1 1.5 0v.878a2.25 2.25 0 0 1-2.25 2.25h-1.5v2.128a2.251 2.251 0 1 1-1.5 0V8.5h-1.5A2.25 2.25 0 0 1 3.5 6.25v-.878a2.25 2.25 0 1 1 1.5 0ZM5 3.25a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Zm6.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5Zm-3 8.75a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Z"></path> </svg> <strong>403</strong> forks</a> </div> <div class="mt-2"> <a class="Link--muted" href="/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fterser%2Fterser&report=terser+%28user%29"> Report repository </a> </div> </div> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame"> <a href="/terser/terser/releases" data-view-component="true" class="Link--primary no-underline Link">Releases</a></h2> <a class="Link--primary no-underline" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/terser/terser/tags"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-tag"> <path d="M1 7.775V2.75C1 1.784 1.784 1 2.75 1h5.025c.464 0 .91.184 1.238.513l6.25 6.25a1.75 1.75 0 0 1 0 2.474l-5.026 5.026a1.75 1.75 0 0 1-2.474 0l-6.25-6.25A1.752 1.752 0 0 1 1 7.775Zm1.5 0c0 .066.026.13.073.177l6.25 6.25a.25.25 0 0 0 .354 0l5.025-5.025a.25.25 0 0 0 0-.354l-6.25-6.25a.25.25 0 0 0-.177-.073H2.75a.25.25 0 0 0-.25.25ZM6 5a1 1 0 1 1 0 2 1 1 0 0 1 0-2Z"></path> </svg> <span class="text-bold">440</span> <span class="color-fg-muted">tags</span> </a> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3">Sponsor this project</h2> <include-fragment src="/terser/terser/sponsors_list?block_button=false&current_repository=terser" aria-busy="true" aria-label="Loading sponsorable links"> <ul class="list-style-none"> </ul> </include-fragment> <ul class="list-style-none"> <li class="mb-2 d-flex"> <span class="mr-2 d-flex flex-items-center flex-justify-center" style="min-width:32px;height:32px;"> <img width="32" height="32" class="octicon rounded-2 d-block" alt="open_collective" src="https://github.githubassets.com/assets/open_collective-0a706523753d.svg" /> </span> <span class="flex-self-center flex-auto min-width-0 css-truncate css-truncate-target width-fit"> <a target="_blank" data-ga-click="Dashboard, click, Nav menu - item:org-profile context:organization" data-hydro-click="{"event_type":"sponsors.repo_funding_links_link_click","payload":{"platform":{"platform_type":"OPEN_COLLECTIVE","platform_url":"https://opencollective.com/terser"},"platforms":[{"platform_type":"OPEN_COLLECTIVE","platform_url":"https://opencollective.com/terser"}],"repo_id":29097127,"owner_id":43502240,"user_id":null,"originating_url":"https://github.com/terser/terser"}}" data-hydro-click-hmac="86b8f3b6d50202f66987ed8f395bce1c1b48fe20281bc7baee441aa74e9c2784" href="https://opencollective.com/terser"><span>opencollective.com/<strong>terser</strong></span></a> </span> </li> </ul> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3"> <a href="/orgs/terser/packages?repo_name=terser" data-view-component="true" class="Link--primary no-underline Link d-flex flex-items-center">Packages <span title="0" hidden="hidden" data-view-component="true" class="Counter ml-1">0</span></a></h2> <div class="text-small color-fg-muted" > No packages published <br> </div> </div> </div> <div class="BorderGrid-row" > <div class="BorderGrid-cell"> <h2 class="h4 mb-3"> <a href="/terser/terser/network/dependents" data-view-component="true" class="Link--primary no-underline Link">Used by <span title="20,093,264" data-view-component="true" class="Counter">20.1m</span></a> </h2> <a class="d-flex flex-items-center" href="/terser/terser/network/dependents"> <ul class="hx_flex-avatar-stack list-style-none min-width-0"> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/141196197?s=64&v=4" width="32" height="32" alt="@Aiki-Toyokawa" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/130241042?s=64&v=4" width="32" height="32" alt="@prasadbvvs" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/30821829?s=64&v=4" width="32" height="32" alt="@Farjana0313" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar" src="https://avatars.githubusercontent.com/u/96167003?s=64&v=4" width="32" height="32" alt="@static-web-apps-testing-org" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/35613507?s=64&v=4" width="32" height="32" alt="@rafaelkenedy" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/95040843?s=64&v=4" width="32" height="32" alt="@mayzan-nilarthein" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/128593405?s=64&v=4" width="32" height="32" alt="@suong-123" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/128360447?s=64&v=4" width="32" height="32" alt="@yashhsoni" /> </li> </ul> <span class="px-2 text-bold text-small no-wrap"> + 20,093,256 </span> </a> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3"> <a href="/terser/terser/graphs/contributors" data-view-component="true" class="Link--primary no-underline Link d-flex flex-items-center">Contributors <span title="234" data-view-component="true" class="Counter ml-1">234</span></a></h2> <ul class="list-style-none d-flex flex-wrap mb-n2"> <li class="mb-2 mr-2" > <a href="https://github.com/fabiosantoscode" class="" data-hovercard-type="user" data-hovercard-url="/users/fabiosantoscode/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/1611595?s=64&v=4" alt="@fabiosantoscode" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/alexlamsl" class="" data-hovercard-type="user" data-hovercard-url="/users/alexlamsl/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/1898413?s=64&v=4" alt="@alexlamsl" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/mishoo" class="" data-hovercard-type="user" data-hovercard-url="/users/mishoo/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/334725?s=64&v=4" alt="@mishoo" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/kzc" class="" data-hovercard-type="user" data-hovercard-url="/users/kzc/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/11593452?s=64&v=4" alt="@kzc" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/rvanvelzen" class="" data-hovercard-type="user" data-hovercard-url="/users/rvanvelzen/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/102603?s=64&v=4" alt="@rvanvelzen" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/avdg" class="" data-hovercard-type="user" data-hovercard-url="/users/avdg/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/212248?s=64&v=4" alt="@avdg" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/L2jLiga" class="" data-hovercard-type="user" data-hovercard-url="/users/L2jLiga/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/11780854?s=64&v=4" alt="@L2jLiga" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/jridgewell" class="" data-hovercard-type="user" data-hovercard-url="/users/jridgewell/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/112982?s=64&v=4" alt="@jridgewell" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/apps/renovate" class="" > <img src="https://avatars.githubusercontent.com/in/2740?s=64&v=4" alt="@renovate[bot]" size="32" height="32" width="32" data-view-component="true" class="avatar" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/Connormiha" class="" data-hovercard-type="user" data-hovercard-url="/users/Connormiha/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/4091305?s=64&v=4" alt="@Connormiha" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/RReverser" class="" data-hovercard-type="user" data-hovercard-url="/users/RReverser/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/557590?s=64&v=4" alt="@RReverser" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/nifgraup" class="" data-hovercard-type="user" data-hovercard-url="/users/nifgraup/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/201388?s=64&v=4" alt="@nifgraup" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/Skalman" class="" data-hovercard-type="user" data-hovercard-url="/users/Skalman/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/138395?s=64&v=4" alt="@Skalman" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/justin-lau" class="" data-hovercard-type="user" data-hovercard-url="/users/justin-lau/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/2094881?s=64&v=4" alt="@justin-lau" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> </ul> <div data-view-component="true" class="mt-3"> <a text="small" href="/terser/terser/graphs/contributors" data-view-component="true" class="Link--inTextBlock Link">+ 220 contributors</a></div> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3">Languages</h2> <div class="mb-2"> <span data-view-component="true" class="Progress"> <span style="background-color:#f1e05a !important;;width: 99.9%;" itemprop="keywords" data-view-component="true" class="Progress-item color-bg-success-emphasis"></span> <span style="background-color:#ededed !important;;width: 0.1%;" itemprop="keywords" data-view-component="true" class="Progress-item color-bg-success-emphasis"></span> </span></div> <ul class="list-style-none"> <li class="d-inline"> <a class="d-inline-flex flex-items-center flex-nowrap Link--secondary no-underline text-small mr-3" href="/terser/terser/search?l=javascript" data-ga-click="Repository, language stats search click, location:repo overview"> <svg style="color:#f1e05a;" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-dot-fill mr-2"> <path d="M8 4a4 4 0 1 1 0 8 4 4 0 0 1 0-8Z"></path> </svg> <span class="color-fg-default text-bold mr-1">JavaScript</span> <span>99.9%</span> </a> </li> <li class="d-inline"> <span class="d-inline-flex flex-items-center flex-nowrap text-small mr-3"> <svg style="color:#ededed;" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-dot-fill mr-2"> <path d="M8 4a4 4 0 1 1 0 8 4 4 0 0 1 0-8Z"></path> </svg> <span class="color-fg-default text-bold mr-1">Other</span> <span>0.1%</span> </span> </li> </ul> </div> </div> </div> </div> </div></div> </div> </div> </turbo-frame> </main> </div> </div> <footer class="footer pt-8 pb-6 f6 color-fg-muted p-responsive" role="contentinfo" > <h2 class='sr-only'>Footer</h2> <div class="d-flex flex-justify-center flex-items-center flex-column-reverse flex-lg-row flex-wrap flex-lg-nowrap"> <div class="d-flex flex-items-center flex-shrink-0 mx-2"> <a aria-label="Homepage" title="GitHub" class="footer-octicon mr-2" href="https://github.com"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-mark-github"> <path d="M12 1C5.9225 1 1 5.9225 1 12C1 16.8675 4.14875 20.9787 8.52125 22.4362C9.07125 22.5325 9.2775 22.2025 9.2775 21.9137C9.2775 21.6525 9.26375 20.7862 9.26375 19.865C6.5 20.3737 5.785 19.1912 5.565 18.5725C5.44125 18.2562 4.905 17.28 4.4375 17.0187C4.0525 16.8125 3.5025 16.3037 4.42375 16.29C5.29 16.2762 5.90875 17.0875 6.115 17.4175C7.105 19.0812 8.68625 18.6137 9.31875 18.325C9.415 17.61 9.70375 17.1287 10.02 16.8537C7.5725 16.5787 5.015 15.63 5.015 11.4225C5.015 10.2262 5.44125 9.23625 6.1425 8.46625C6.0325 8.19125 5.6475 7.06375 6.2525 5.55125C6.2525 5.55125 7.17375 5.2625 9.2775 6.67875C10.1575 6.43125 11.0925 6.3075 12.0275 6.3075C12.9625 6.3075 13.8975 6.43125 14.7775 6.67875C16.8813 5.24875 17.8025 5.55125 17.8025 5.55125C18.4075 7.06375 18.0225 8.19125 17.9125 8.46625C18.6138 9.23625 19.04 10.2125 19.04 11.4225C19.04 15.6437 16.4688 16.5787 14.0213 16.8537C14.42 17.1975 14.7638 17.8575 14.7638 18.8887C14.7638 20.36 14.75 21.5425 14.75 21.9137C14.75 22.2025 14.9563 22.5462 15.5063 22.4362C19.8513 20.9787 23 16.8537 23 12C23 5.9225 18.0775 1 12 1Z"></path> </svg> </a> <span> © 2025 GitHub, Inc. </span> </div> <nav aria-label="Footer"> <h3 class="sr-only" id="sr-footer-heading">Footer navigation</h3> <ul class="list-style-none d-flex flex-justify-center flex-wrap mb-2 mb-lg-0" aria-labelledby="sr-footer-heading"> <li class="mx-2"> <a data-analytics-event="{"category":"Footer","action":"go to Terms","label":"text:terms"}" href="https://docs.github.com/site-policy/github-terms/github-terms-of-service" data-view-component="true" class="Link--secondary Link">Terms</a> </li> <li class="mx-2"> <a data-analytics-event="{"category":"Footer","action":"go to privacy","label":"text:privacy"}" href="https://docs.github.com/site-policy/privacy-policies/github-privacy-statement" data-view-component="true" class="Link--secondary Link">Privacy</a> </li> <li class="mx-2"> <a data-analytics-event="{"category":"Footer","action":"go to security","label":"text:security"}" href="https://github.com/security" data-view-component="true" class="Link--secondary Link">Security</a> </li> <li class="mx-2"> <a data-analytics-event="{"category":"Footer","action":"go to status","label":"text:status"}" href="https://www.githubstatus.com/" data-view-component="true" class="Link--secondary Link">Status</a> </li> <li class="mx-2"> <a data-analytics-event="{"category":"Footer","action":"go to docs","label":"text:docs"}" href="https://docs.github.com/" data-view-component="true" class="Link--secondary Link">Docs</a> </li> <li class="mx-2"> <a data-analytics-event="{"category":"Footer","action":"go to contact","label":"text:contact"}" href="https://support.github.com?tags=dotcom-footer" data-view-component="true" class="Link--secondary Link">Contact</a> </li> <li class="mx-2" > <cookie-consent-link> <button type="button" class="Link--secondary underline-on-hover border-0 p-0 color-bg-transparent" data-action="click:cookie-consent-link#showConsentManagement" data-analytics-event="{"location":"footer","action":"cookies","context":"subfooter","tag":"link","label":"cookies_link_subfooter_footer"}" > Manage cookies </button> </cookie-consent-link> </li> <li class="mx-2"> <cookie-consent-link> <button type="button" class="Link--secondary underline-on-hover border-0 p-0 color-bg-transparent" data-action="click:cookie-consent-link#showConsentManagement" data-analytics-event="{"location":"footer","action":"dont_share_info","context":"subfooter","tag":"link","label":"dont_share_info_link_subfooter_footer"}" > Do not share my personal information </button> </cookie-consent-link> </li> </ul> </nav> </div> </footer> <ghcc-consent id="ghcc" class="position-fixed bottom-0 left-0" style="z-index: 999999" data-initial-cookie-consent-allowed="" data-cookie-consent-required="false"></ghcc-consent> <div id="ajax-error-message" class="ajax-error-message flash flash-error" hidden> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-alert"> <path d="M6.457 1.047c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0 1 14.082 15H1.918a1.75 1.75 0 0 1-1.543-2.575Zm1.763.707a.25.25 0 0 0-.44 0L1.698 13.132a.25.25 0 0 0 .22.368h12.164a.25.25 0 0 0 .22-.368Zm.53 3.996v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 11a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path> </svg> <button type="button" class="flash-close js-ajax-error-dismiss" aria-label="Dismiss error"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg> </button> You can’t perform that action at this time. </div> <template id="site-details-dialog"> <details class="details-reset details-overlay details-overlay-dark lh-default color-fg-default hx_rsm" open> <summary role="button" aria-label="Close dialog"></summary> <details-dialog class="Box Box--overlay d-flex flex-column anim-fade-in fast hx_rsm-dialog hx_rsm-modal"> <button class="Box-btn-octicon m-0 btn-octicon position-absolute right-0 top-0" type="button" aria-label="Close dialog" data-close-dialog> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg> </button> <div class="octocat-spinner my-6 js-details-dialog-spinner"></div> </details-dialog> </details> </template> <div class="Popover js-hovercard-content position-absolute" style="display: none; outline: none;"> <div class="Popover-message Popover-message--bottom-left Popover-message--large Box color-shadow-large" style="width:360px;"> </div> </div> <template id="snippet-clipboard-copy-button"> <div class="zeroclipboard-container position-absolute right-0 top-0"> <clipboard-copy aria-label="Copy" class="ClipboardButton btn js-clipboard-copy m-2 p-0" data-copy-feedback="Copied!" data-tooltip-direction="w"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy js-clipboard-copy-icon m-2"> <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path> </svg> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check js-clipboard-check-icon color-fg-success d-none m-2"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path> </svg> </clipboard-copy> </div> </template> <template id="snippet-clipboard-copy-button-unpositioned"> <div class="zeroclipboard-container"> <clipboard-copy aria-label="Copy" class="ClipboardButton btn btn-invisible js-clipboard-copy m-2 p-0 d-flex flex-justify-center flex-items-center" data-copy-feedback="Copied!" data-tooltip-direction="w"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy js-clipboard-copy-icon"> <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path> </svg> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check js-clipboard-check-icon color-fg-success d-none"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path> </svg> </clipboard-copy> </div> </template> </div> <div id="js-global-screen-reader-notice" class="sr-only mt-n1" aria-live="polite" aria-atomic="true" ></div> <div id="js-global-screen-reader-notice-assertive" class="sr-only mt-n1" aria-live="assertive" aria-atomic="true"></div> </body> </html>