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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"> <!-- '"` --><!-- </textarea></xmp> --></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="wL9px9sxOHr6/1rDBoWvU92t2341HYFYlkiuIKkxxTyTBxHAsuk5jy0mygA37b3vqIKd9m15JFx5GyZTvlmAdg==" /> <div data-target="custom-scopes.customScopesModalDialogFlash"></div> <input type="hidden" 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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 align=\"center\" dir=\"auto\"\u003e\n Chai is a BDD / TDD assertion library for \u003ca href=\"http://nodejs.org\" rel=\"nofollow\"\u003enode\u003c/a\u003e and the browser that can be delightfully paired with any javascript testing framework.\n\u003c/p\u003e\n\u003cp align=\"center\" dir=\"auto\"\u003e\n \u003ca href=\"https://www.npmjs.com/package/chai\" rel=\"nofollow\"\u003e\n \u003cimg alt=\"downloads:?\" src=\"https://camo.githubusercontent.com/99ae1e95e0daec367b1fe0408c16b9f071356f17a21bfb61a7f97c7e064d098e/68747470733a2f2f696d672e736869656c64732e696f2f6e706d2f646d2f636861692e7376673f7374796c653d666c61742d737175617265\" 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src=\"https://camo.githubusercontent.com/df5c1f4bab3b6cdadb659d88e2922ec0dde49c44f1b25b2d20e5fbc195a6e2b4/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f736c61636b2d6a6f696e253230636861742d4532323036462e7376673f7374796c653d666c61742d737175617265\" data-canonical-src=\"https://img.shields.io/badge/slack-join%20chat-E2206F.svg?style=flat-square\" style=\"max-width: 100%;\"\u003e\n \u003c/a\u003e\n \u003ca href=\"https://gitter.im/chaijs/chai\" rel=\"nofollow\"\u003e\n \u003cimg alt=\"Join the Gitter chat\" src=\"https://camo.githubusercontent.com/7dfb520bacb0f4673c1cf5bc9f1cb2f1b9ae18de05210637c13f5b32d61ddf9e/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6769747465722d6a6f696e253230636861742d4430313034442e7376673f7374796c653d666c61742d737175617265\" data-canonical-src=\"https://img.shields.io/badge/gitter-join%20chat-D0104D.svg?style=flat-square\" style=\"max-width: 100%;\"\u003e\n \u003c/a\u003e\n \u003ca href=\"https://opencollective.com/chaijs\" rel=\"nofollow\"\u003e\n \u003cimg alt=\"OpenCollective Backers\" src=\"https://camo.githubusercontent.com/d5b342c8d2a6df0957f04ab4586b65371962437a097e08be6570682f446498ce/68747470733a2f2f6f70656e636f6c6c6563746976652e636f6d2f636861696a732f6261636b6572732f62616467652e7376673f7374796c653d666c61742d737175617265\" data-canonical-src=\"https://opencollective.com/chaijs/backers/badge.svg?style=flat-square\" style=\"max-width: 100%;\"\u003e\n \u003c/a\u003e\n\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eFor more information or to download plugins, view the \u003ca href=\"http://chaijs.com\" rel=\"nofollow\"\u003edocumentation\u003c/a\u003e.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eWhat is Chai?\u003c/h2\u003e\u003ca id=\"user-content-what-is-chai\" class=\"anchor\" aria-label=\"Permalink: What is Chai?\" href=\"#what-is-chai\"\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\"\u003eChai is an \u003cem\u003eassertion library\u003c/em\u003e, similar to Node's built-in \u003ccode\u003eassert\u003c/code\u003e. It makes testing much easier by giving you lots of assertions you can run against your code.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eInstallation\u003c/h2\u003e\u003ca id=\"user-content-installation\" class=\"anchor\" aria-label=\"Permalink: Installation\" href=\"#installation\"\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\"\u003eNode.js\u003c/h3\u003e\u003ca id=\"user-content-nodejs\" class=\"anchor\" aria-label=\"Permalink: Node.js\" href=\"#nodejs\"\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\u003echai\u003c/code\u003e is available on \u003ca href=\"http://npmjs.org\" rel=\"nofollow\"\u003enpm\u003c/a\u003e. To install it, type:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"$ npm install --save-dev chai\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003e$ npm install --save-dev chai\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\"\u003eBrowsers\u003c/h3\u003e\u003ca id=\"user-content-browsers\" class=\"anchor\" aria-label=\"Permalink: Browsers\" href=\"#browsers\"\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 it within the browser; install via npm and use the \u003ccode\u003echai.js\u003c/code\u003e file found within the download. For example:\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;./node_modules/chai/chai.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\"\u003e./node_modules/chai/chai.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\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eUsage\u003c/h2\u003e\u003ca id=\"user-content-usage\" class=\"anchor\" aria-label=\"Permalink: Usage\" href=\"#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\u003cp dir=\"auto\"\u003eImport the library in your code, and then pick one of the styles you'd like to use - either \u003ccode\u003eassert\u003c/code\u003e, \u003ccode\u003eexpect\u003c/code\u003e or \u003ccode\u003eshould\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=\"import { assert } from 'chai'; // Using Assert style\nimport { expect } from 'chai'; // Using Expect style\nimport { should } from 'chai'; // Using Should style\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eassert\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efrom\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Using Assert style\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eexpect\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efrom\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Using Expect style\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eshould\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efrom\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Using Should style\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\"\u003eRegister the chai testing style globally\u003c/h3\u003e\u003ca id=\"user-content-register-the-chai-testing-style-globally\" class=\"anchor\" aria-label=\"Permalink: Register the chai testing style globally\" href=\"#register-the-chai-testing-style-globally\"\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=\"import 'chai/register-assert'; // Using Assert style\nimport 'chai/register-expect'; // Using Expect style\nimport 'chai/register-should'; // Using Should style\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai/register-assert'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Using Assert style\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai/register-expect'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Using Expect style\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai/register-should'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Using Should style\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\"\u003eImport assertion styles as local variables\u003c/h3\u003e\u003ca id=\"user-content-import-assertion-styles-as-local-variables\" class=\"anchor\" aria-label=\"Permalink: Import assertion styles as local variables\" href=\"#import-assertion-styles-as-local-variables\"\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=\"import { assert } from 'chai'; // Using Assert style\nimport { expect } from 'chai'; // Using Expect style\nimport { should } from 'chai'; // Using Should style\nshould(); // Modifies `Object.prototype`\n\nimport { expect, use } from 'chai'; // Creates local variables `expect` and `use`; useful for plugin use\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eassert\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efrom\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Using Assert style\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eexpect\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efrom\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Using Expect style\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eshould\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efrom\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Using Should style\u003c/span\u003e\n\u003cspan class=\"pl-en\"\u003eshould\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-c\"\u003e// Modifies `Object.prototype`\u003c/span\u003e\n\n\u003cspan class=\"pl-k\"\u003eimport\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eexpect\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003euse\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efrom\u003c/span\u003e \u003cspan class=\"pl-s\"\u003e'chai'\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-c\"\u003e// Creates local variables `expect` and `use`; useful for plugin use\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\"\u003eUsage with Mocha\u003c/h3\u003e\u003ca id=\"user-content-usage-with-mocha\" class=\"anchor\" aria-label=\"Permalink: Usage with Mocha\" href=\"#usage-with-mocha\"\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-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"mocha spec.js --require chai/register-assert.js # Using Assert style\nmocha spec.js --require chai/register-expect.js # Using Expect style\nmocha spec.js --require chai/register-should.js # Using Should style\"\u003e\u003cpre\u003emocha spec.js --require chai/register-assert.js \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Using Assert style\u003c/span\u003e\nmocha spec.js --require chai/register-expect.js \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Using Expect style\u003c/span\u003e\nmocha spec.js --require chai/register-should.js \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Using Should style\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"http://chaijs.com/guide/styles/\" rel=\"nofollow\"\u003eRead more about these styles in our docs\u003c/a\u003e.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003ePlugins\u003c/h2\u003e\u003ca id=\"user-content-plugins\" class=\"anchor\" aria-label=\"Permalink: Plugins\" href=\"#plugins\"\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\"\u003eChai offers a robust Plugin architecture for extending Chai's assertions and interfaces.\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eNeed a plugin? View the \u003ca href=\"http://chaijs.com/plugins\" rel=\"nofollow\"\u003eofficial plugin list\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003eWant to build a plugin? Read the \u003ca href=\"http://chaijs.com/guide/plugins/\" rel=\"nofollow\"\u003eplugin api documentation\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003eHave a plugin and want it listed? Simply add the following keywords to your package.json:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ccode\u003echai-plugin\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003ebrowser\u003c/code\u003e if your plugin works in the browser as well as Node.js\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003ebrowser-only\u003c/code\u003e if your plugin does not work with Node.js\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eRelated Projects\u003c/h3\u003e\u003ca id=\"user-content-related-projects\" class=\"anchor\" aria-label=\"Permalink: Related Projects\" href=\"#related-projects\"\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\u003ca href=\"https://github.com/chaijs/chai-docs\"\u003echaijs / chai-docs\u003c/a\u003e: The chaijs.com website source code.\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://github.com/chaijs/assertion-error\"\u003echaijs / assertion-error\u003c/a\u003e: Custom \u003ccode\u003eError\u003c/code\u003e constructor thrown upon an assertion failing.\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://github.com/chaijs/deep-eql\"\u003echaijs / deep-eql\u003c/a\u003e: Improved deep equality testing for Node.js and the browser.\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://github.com/chaijs/check-error\"\u003echaijs / check-error\u003c/a\u003e: Error comparison and information related utility for Node.js and the browser.\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://github.com/chaijs/loupe\"\u003echaijs / loupe\u003c/a\u003e: Inspect utility for Node.js and browsers.\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://github.com/chaijs/pathval\"\u003echaijs / pathval\u003c/a\u003e: Object value retrieval given a string path.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eContributing\u003c/h3\u003e\u003ca id=\"user-content-contributing\" class=\"anchor\" aria-label=\"Permalink: Contributing\" href=\"#contributing\"\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\"\u003eThank you very much for considering to contribute!\u003c/p\u003e\n\u003cp dir=\"auto\"\u003ePlease make sure you follow our \u003ca href=\"https://github.com/chaijs/chai/blob/master/CODE_OF_CONDUCT.md\"\u003eCode Of Conduct\u003c/a\u003e and we also strongly recommend reading our \u003ca href=\"https://github.com/chaijs/chai/blob/master/CONTRIBUTING.md\"\u003eContributing Guide\u003c/a\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eHere are a few issues other contributors frequently ran into when opening pull requests:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003ePlease do not commit changes to the \u003ccode\u003echai.js\u003c/code\u003e build. We do it once per release.\u003c/li\u003e\n\u003cli\u003eBefore pushing your commits, please make sure you \u003ca href=\"https://github.com/chaijs/chai/blob/master/CONTRIBUTING.md#pull-requests\"\u003erebase\u003c/a\u003e them.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eContributors\u003c/h3\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\u003cp dir=\"auto\"\u003ePlease see the full\n\u003ca href=\"https://github.com/chaijs/chai/graphs/contributors\"\u003eContributors Graph\u003c/a\u003e for our\nlist of contributors.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCore Contributors\u003c/h3\u003e\u003ca id=\"user-content-core-contributors\" class=\"anchor\" aria-label=\"Permalink: Core Contributors\" href=\"#core-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\"\u003eFeel free to reach out to any of the core contributors with your questions or\nconcerns. We will do our best to respond in a timely manner.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://github.com/logicalparadox\"\u003e\u003cimg src=\"https://avatars3.githubusercontent.com/u/58988?v=3\u0026amp;s=50\" alt=\"Jake Luer\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://github.com/vesln\"\u003e\u003cimg src=\"https://avatars3.githubusercontent.com/u/330048?v=3\u0026amp;s=50\" alt=\"Veselin Todorov\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://github.com/keithamus\"\u003e\u003cimg src=\"https://avatars3.githubusercontent.com/u/118266?v=3\u0026amp;s=50\" alt=\"Keith Cirkel\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://github.com/lucasfcosta\"\u003e\u003cimg src=\"https://avatars3.githubusercontent.com/u/6868147?v=3\u0026amp;s=50\" alt=\"Lucas Fernandes da Costa\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://github.com/meeber\"\u003e\u003cimg src=\"https://avatars3.githubusercontent.com/u/17260989?v=3\u0026amp;s=50\" alt=\"Grant Snodgrass\" 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":"\n chai\n","anchor":"------------chai","htmlText":"\n chai\n"},{"level":2,"text":"What is Chai?","anchor":"what-is-chai","htmlText":"What is Chai?"},{"level":2,"text":"Installation","anchor":"installation","htmlText":"Installation"},{"level":3,"text":"Node.js","anchor":"nodejs","htmlText":"Node.js"},{"level":3,"text":"Browsers","anchor":"browsers","htmlText":"Browsers"},{"level":2,"text":"Usage","anchor":"usage","htmlText":"Usage"},{"level":3,"text":"Register the chai testing style globally","anchor":"register-the-chai-testing-style-globally","htmlText":"Register the chai testing style globally"},{"level":3,"text":"Import assertion styles as local variables","anchor":"import-assertion-styles-as-local-variables","htmlText":"Import assertion styles as local variables"},{"level":3,"text":"Usage with Mocha","anchor":"usage-with-mocha","htmlText":"Usage with Mocha"},{"level":2,"text":"Plugins","anchor":"plugins","htmlText":"Plugins"},{"level":3,"text":"Related Projects","anchor":"related-projects","htmlText":"Related Projects"},{"level":3,"text":"Contributing","anchor":"contributing","htmlText":"Contributing"},{"level":3,"text":"Contributors","anchor":"contributors","htmlText":"Contributors"},{"level":3,"text":"Core Contributors","anchor":"core-contributors","htmlText":"Core Contributors"}],"siteNavLoginPath":"/login?return_to=https%3A%2F%2Fgithub.com%2Fchaijs%2Fchai"}},{"displayName":"CODE_OF_CONDUCT.md","repoName":"chai","refName":"main","path":"CODE_OF_CONDUCT.md","preferredFileType":"code_of_conduct","tabName":"Code of 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src="https://camo.githubusercontent.com/aadaadaede0d9d49b9445eaf9ffad39b10a38c531da4a2595b1ea4943a2ebf91/687474703a2f2f636861696a732e636f6d2f696d672f636861692d6c6f676f2e706e67" data-canonical-src="http://chaijs.com/img/chai-logo.png" style="max-width: 100%;"> </a> <br> chai </h1><a id="user-content-------------chai" class="anchor" aria-label="Permalink: chai " href="#------------chai"><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 align="center" dir="auto"> Chai is a BDD / TDD assertion library for <a href="http://nodejs.org" rel="nofollow">node</a> and the browser that can be delightfully paired with any javascript testing framework. </p> <p align="center" dir="auto"> <a href="https://www.npmjs.com/package/chai" rel="nofollow"> <img alt="downloads:?" src="https://camo.githubusercontent.com/99ae1e95e0daec367b1fe0408c16b9f071356f17a21bfb61a7f97c7e064d098e/68747470733a2f2f696d672e736869656c64732e696f2f6e706d2f646d2f636861692e7376673f7374796c653d666c61742d737175617265" data-canonical-src="https://img.shields.io/npm/dm/chai.svg?style=flat-square" style="max-width: 100%;"> </a> <a href="https://www.npmjs.com/package/chai" rel="nofollow"> <img alt="node:?" 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class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">What is Chai?</h2><a id="user-content-what-is-chai" class="anchor" aria-label="Permalink: What is Chai?" href="#what-is-chai"><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">Chai is an <em>assertion library</em>, similar to Node's built-in <code>assert</code>. It makes testing much easier by giving you lots of assertions you can run against your code.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Installation</h2><a id="user-content-installation" class="anchor" aria-label="Permalink: Installation" href="#installation"><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">Node.js</h3><a id="user-content-nodejs" class="anchor" aria-label="Permalink: Node.js" href="#nodejs"><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>chai</code> is available on <a href="http://npmjs.org" rel="nofollow">npm</a>. To install it, type:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="$ npm install --save-dev chai"><pre class="notranslate"><code>$ npm install --save-dev chai </code></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Browsers</h3><a id="user-content-browsers" class="anchor" aria-label="Permalink: Browsers" href="#browsers"><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 it within the browser; install via npm and use the <code>chai.js</code> file found within the download. For example:</p> <div class="highlight highlight-text-html-basic notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="<script src="./node_modules/chai/chai.js"></script>"><pre><span class="pl-kos"><</span><span class="pl-ent">script</span> <span class="pl-c1">src</span>="<span class="pl-s">./node_modules/chai/chai.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> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Usage</h2><a id="user-content-usage" class="anchor" aria-label="Permalink: Usage" href="#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> <p dir="auto">Import the library in your code, and then pick one of the styles you'd like to use - either <code>assert</code>, <code>expect</code> or <code>should</code>:</p> <div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="import { assert } from 'chai'; // Using Assert style import { expect } from 'chai'; // Using Expect style import { should } from 'chai'; // Using Should style"><pre><span class="pl-k">import</span> <span class="pl-kos">{</span> <span class="pl-s1">assert</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">'chai'</span><span class="pl-kos">;</span> <span class="pl-c">// Using Assert style</span> <span class="pl-k">import</span> <span class="pl-kos">{</span> <span class="pl-s1">expect</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">'chai'</span><span class="pl-kos">;</span> <span class="pl-c">// Using Expect style</span> <span class="pl-k">import</span> <span class="pl-kos">{</span> <span class="pl-s1">should</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">'chai'</span><span class="pl-kos">;</span> <span class="pl-c">// Using Should style</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Register the chai testing style globally</h3><a id="user-content-register-the-chai-testing-style-globally" class="anchor" aria-label="Permalink: Register the chai testing style globally" href="#register-the-chai-testing-style-globally"><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="import 'chai/register-assert'; // Using Assert style import 'chai/register-expect'; // Using Expect style import 'chai/register-should'; // Using Should style"><pre><span class="pl-k">import</span> <span class="pl-s">'chai/register-assert'</span><span class="pl-kos">;</span> <span class="pl-c">// Using Assert style</span> <span class="pl-k">import</span> <span class="pl-s">'chai/register-expect'</span><span class="pl-kos">;</span> <span class="pl-c">// Using Expect style</span> <span class="pl-k">import</span> <span class="pl-s">'chai/register-should'</span><span class="pl-kos">;</span> <span class="pl-c">// Using Should style</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Import assertion styles as local variables</h3><a id="user-content-import-assertion-styles-as-local-variables" class="anchor" aria-label="Permalink: Import assertion styles as local variables" href="#import-assertion-styles-as-local-variables"><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="import { assert } from 'chai'; // Using Assert style import { expect } from 'chai'; // Using Expect style import { should } from 'chai'; // Using Should style should(); // Modifies `Object.prototype` import { expect, use } from 'chai'; // Creates local variables `expect` and `use`; useful for plugin use"><pre><span class="pl-k">import</span> <span class="pl-kos">{</span> <span class="pl-s1">assert</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">'chai'</span><span class="pl-kos">;</span> <span class="pl-c">// Using Assert style</span> <span class="pl-k">import</span> <span class="pl-kos">{</span> <span class="pl-s1">expect</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">'chai'</span><span class="pl-kos">;</span> <span class="pl-c">// Using Expect style</span> <span class="pl-k">import</span> <span class="pl-kos">{</span> <span class="pl-s1">should</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">'chai'</span><span class="pl-kos">;</span> <span class="pl-c">// Using Should style</span> <span class="pl-en">should</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// Modifies `Object.prototype`</span> <span class="pl-k">import</span> <span class="pl-kos">{</span> <span class="pl-s1">expect</span><span class="pl-kos">,</span> <span class="pl-s1">use</span> <span class="pl-kos">}</span> <span class="pl-k">from</span> <span class="pl-s">'chai'</span><span class="pl-kos">;</span> <span class="pl-c">// Creates local variables `expect` and `use`; useful for plugin use</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Usage with Mocha</h3><a id="user-content-usage-with-mocha" class="anchor" aria-label="Permalink: Usage with Mocha" href="#usage-with-mocha"><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-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="mocha spec.js --require chai/register-assert.js # Using Assert style mocha spec.js --require chai/register-expect.js # Using Expect style mocha spec.js --require chai/register-should.js # Using Should style"><pre>mocha spec.js --require chai/register-assert.js <span class="pl-c"><span class="pl-c">#</span> Using Assert style</span> mocha spec.js --require chai/register-expect.js <span class="pl-c"><span class="pl-c">#</span> Using Expect style</span> mocha spec.js --require chai/register-should.js <span class="pl-c"><span class="pl-c">#</span> Using Should style</span></pre></div> <p dir="auto"><a href="http://chaijs.com/guide/styles/" rel="nofollow">Read more about these styles in our docs</a>.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Plugins</h2><a id="user-content-plugins" class="anchor" aria-label="Permalink: Plugins" href="#plugins"><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">Chai offers a robust Plugin architecture for extending Chai's assertions and interfaces.</p> <ul dir="auto"> <li>Need a plugin? View the <a href="http://chaijs.com/plugins" rel="nofollow">official plugin list</a>.</li> <li>Want to build a plugin? Read the <a href="http://chaijs.com/guide/plugins/" rel="nofollow">plugin api documentation</a>.</li> <li>Have a plugin and want it listed? Simply add the following keywords to your package.json: <ul dir="auto"> <li><code>chai-plugin</code></li> <li><code>browser</code> if your plugin works in the browser as well as Node.js</li> <li><code>browser-only</code> if your plugin does not work with Node.js</li> </ul> </li> </ul> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Related Projects</h3><a id="user-content-related-projects" class="anchor" aria-label="Permalink: Related Projects" href="#related-projects"><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><a href="https://github.com/chaijs/chai-docs">chaijs / chai-docs</a>: The chaijs.com website source code.</li> <li><a href="https://github.com/chaijs/assertion-error">chaijs / assertion-error</a>: Custom <code>Error</code> constructor thrown upon an assertion failing.</li> <li><a href="https://github.com/chaijs/deep-eql">chaijs / deep-eql</a>: Improved deep equality testing for Node.js and the browser.</li> <li><a href="https://github.com/chaijs/check-error">chaijs / check-error</a>: Error comparison and information related utility for Node.js and the browser.</li> <li><a href="https://github.com/chaijs/loupe">chaijs / loupe</a>: Inspect utility for Node.js and browsers.</li> <li><a href="https://github.com/chaijs/pathval">chaijs / pathval</a>: Object value retrieval given a string path.</li> </ul> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Contributing</h3><a id="user-content-contributing" class="anchor" aria-label="Permalink: Contributing" href="#contributing"><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">Thank you very much for considering to contribute!</p> <p dir="auto">Please make sure you follow our <a href="https://github.com/chaijs/chai/blob/master/CODE_OF_CONDUCT.md">Code Of Conduct</a> and we also strongly recommend reading our <a href="https://github.com/chaijs/chai/blob/master/CONTRIBUTING.md">Contributing Guide</a>.</p> <p dir="auto">Here are a few issues other contributors frequently ran into when opening pull requests:</p> <ul dir="auto"> <li>Please do not commit changes to the <code>chai.js</code> build. We do it once per release.</li> <li>Before pushing your commits, please make sure you <a href="https://github.com/chaijs/chai/blob/master/CONTRIBUTING.md#pull-requests">rebase</a> them.</li> </ul> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Contributors</h3><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> <p dir="auto">Please see the full <a href="https://github.com/chaijs/chai/graphs/contributors">Contributors Graph</a> for our list of contributors.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Core Contributors</h3><a id="user-content-core-contributors" class="anchor" aria-label="Permalink: Core Contributors" href="#core-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">Feel free to reach out to any of the core contributors with your questions or concerns. We will do our best to respond in a timely manner.</p> <p dir="auto"><a href="https://github.com/logicalparadox"><img src="https://avatars3.githubusercontent.com/u/58988?v=3&s=50" alt="Jake Luer" style="max-width: 100%;"></a> <a href="https://github.com/vesln"><img src="https://avatars3.githubusercontent.com/u/330048?v=3&s=50" alt="Veselin Todorov" style="max-width: 100%;"></a> <a href="https://github.com/keithamus"><img src="https://avatars3.githubusercontent.com/u/118266?v=3&s=50" alt="Keith Cirkel" style="max-width: 100%;"></a> <a href="https://github.com/lucasfcosta"><img src="https://avatars3.githubusercontent.com/u/6868147?v=3&s=50" alt="Lucas Fernandes da Costa" style="max-width: 100%;"></a> <a href="https://github.com/meeber"><img src="https://avatars3.githubusercontent.com/u/17260989?v=3&s=50" alt="Grant Snodgrass" 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="7sRVHepmZSUq0UwaBHZ/CmdwmbnhurKoOOslU9cQVSa0ZPFnGg3HIhmlEVl2E60WJJ8iIAVLMboFj/gJQT9eVA==" /> </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"> BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework. </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://chaijs.github.io" role="link" target="_blank" rel="noopener noreferrer nofollow" class="text-bold" href="https://chaijs.github.io">chaijs.github.io</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/tdd" title="Topic: tdd" data-view-component="true" class="topic-tag topic-tag-link"> tdd </a> <a href="/topics/bdd" title="Topic: bdd" data-view-component="true" class="topic-tag topic-tag-link"> bdd </a> <a href="/topics/assertions" title="Topic: assertions" data-view-component="true" class="topic-tag topic-tag-link"> assertions </a> <a href="/topics/chai" title="Topic: chai" data-view-component="true" class="topic-tag topic-tag-link"> chai </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="#MIT-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> MIT license </a> </div> <h3 class="sr-only">Code of conduct</h3> <div class="mt-2"> <a href="#coc-ov-file" class="Link--muted" data-analytics-event="{"category":"Repository Overview","action":"click","label":"location:sidebar;file:code of conduct"}" > <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code-of-conduct mr-2"> <path d="M8.048 2.241c.964-.709 2.079-1.238 3.325-1.241a4.616 4.616 0 0 1 3.282 1.355c.41.408.757.86.996 1.428.238.568.348 1.206.347 1.968 0 2.193-1.505 4.254-3.081 5.862-1.496 1.526-3.213 2.796-4.249 3.563l-.22.163a.749.749 0 0 1-.895 0l-.221-.163c-1.036-.767-2.753-2.037-4.249-3.563C1.51 10.008.007 7.952.002 5.762a4.614 4.614 0 0 1 1.353-3.407C3.123.585 6.223.537 8.048 2.24Zm-1.153.983c-1.25-1.033-3.321-.967-4.48.191a3.115 3.115 0 0 0-.913 2.335c0 1.556 1.109 3.24 2.652 4.813C5.463 11.898 6.96 13.032 8 13.805c.353-.262.758-.565 1.191-.905l-1.326-1.223a.75.75 0 0 1 1.018-1.102l1.48 1.366c.328-.281.659-.577.984-.887L9.99 9.802a.75.75 0 1 1 1.019-1.103l1.384 1.28c.295-.329.566-.661.81-.995L12.92 8.7l-1.167-1.168c-.674-.671-1.78-.664-2.474.03-.268.269-.538.537-.802.797-.893.882-2.319.843-3.185-.032-.346-.35-.693-.697-1.043-1.047a.75.75 0 0 1-.04-1.016c.162-.191.336-.401.52-.623.62-.748 1.356-1.637 2.166-2.417Zm7.112 4.442c.313-.65.491-1.293.491-1.916v-.001c0-.614-.088-1.045-.23-1.385-.143-.339-.357-.633-.673-.949a3.111 3.111 0 0 0-2.218-.915c-1.092.003-2.165.627-3.226 1.602-.823.755-1.554 1.637-2.228 2.45l-.127.154.562.566a.755.755 0 0 0 1.066.02l.794-.79c1.258-1.258 3.312-1.31 4.594-.032.396.394.792.791 1.173 1.173Z"></path> </svg> Code of conduct </a> </div> <include-fragment src="/chaijs/chai/hovercards/citation/sidebar_partial?tree_name=main"> </include-fragment> <div class="mt-2"> <a href="/chaijs/chai/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="/chaijs/chai/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="/chaijs/chai/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>8.2k</strong> stars</a> </div> <h3 class="sr-only">Watchers</h3> <div class="mt-2"> <a href="/chaijs/chai/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>134</strong> watching</a> </div> <h3 class="sr-only">Forks</h3> <div class="mt-2"> <a href="/chaijs/chai/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>702</strong> forks</a> </div> <div class="mt-2"> <a class="Link--muted" href="/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fchaijs%2Fchai&report=chaijs+%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="/chaijs/chai/releases" data-view-component="true" class="Link--primary no-underline Link">Releases <span title="52" data-view-component="true" class="Counter">52</span></a></h2> <a class="Link--primary d-flex no-underline" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/chaijs/chai/releases/tag/v5.2.0"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-tag flex-shrink-0 mt-1 color-fg-success"> <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> <div class="ml-2 min-width-0"> <div class="d-flex"> <span class="css-truncate css-truncate-target text-bold mr-2" style="max-width: none;">v5.2.0</span> <span title="Label: Latest" data-view-component="true" class="Label Label--success flex-shrink-0"> Latest </span> </div> <div class="text-small color-fg-muted"><relative-time datetime="2025-02-14T17:00:22Z" class="no-wrap">Feb 14, 2025</relative-time></div> </div> </a> <div data-view-component="true" class="mt-3"> <a text="small" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/chaijs/chai/releases" data-view-component="true" class="Link">+ 51 releases</a></div> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3">Sponsor this project</h2> <include-fragment src="/chaijs/chai/sponsors_list?block_button=false&current_repository=chai" 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/chaijs"},"platforms":[{"platform_type":"OPEN_COLLECTIVE","platform_url":"https://opencollective.com/chaijs"}],"repo_id":2931111,"owner_id":1515293,"user_id":null,"originating_url":"https://github.com/chaijs/chai"}}" data-hydro-click-hmac="d563d0856b5ca24e116513aa8edbf92ff21d81c96868fd62020b2ff46903b5ab" href="https://opencollective.com/chaijs"><span>opencollective.com/<strong>chaijs</strong></span></a> </span> </li> </ul> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3"> <a href="/orgs/chaijs/packages?repo_name=chai" 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="/chaijs/chai/network/dependents" data-view-component="true" class="Link--primary no-underline Link">Used by <span title="2,323,120" data-view-component="true" class="Counter">2.3m</span></a> </h2> <a class="d-flex flex-items-center" href="/chaijs/chai/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/118959735?s=64&v=4" width="32" height="32" alt="@eldo88" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/3514991?s=64&v=4" width="32" height="32" alt="@rzymek" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/91952755?s=64&v=4" width="32" height="32" alt="@matyasmanur" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/79145995?s=64&v=4" width="32" height="32" alt="@Bewizi" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/188362486?s=64&v=4" width="32" height="32" alt="@Vinuthna-Sneha" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/203703854?s=64&v=4" width="32" height="32" alt="@spektredev" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/19254205?s=64&v=4" width="32" height="32" alt="@NLGRF" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/148908628?s=64&v=4" width="32" height="32" alt="@tiny-table-top" /> </li> </ul> <span class="px-2 text-bold text-small no-wrap"> + 2,323,112 </span> </a> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3"> <a href="/chaijs/chai/graphs/contributors" data-view-component="true" class="Link--primary no-underline Link d-flex flex-items-center">Contributors <span title="167" data-view-component="true" class="Counter ml-1">167</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/logicalparadox" class="" data-hovercard-type="user" data-hovercard-url="/users/logicalparadox/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/58988?s=64&v=4" alt="@logicalparadox" 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/keithamus" class="" data-hovercard-type="user" data-hovercard-url="/users/keithamus/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/118266?s=64&v=4" alt="@keithamus" 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/meeber" class="" data-hovercard-type="user" data-hovercard-url="/users/meeber/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/17260989?s=64&v=4" alt="@meeber" 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/vesln" class="" data-hovercard-type="user" data-hovercard-url="/users/vesln/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/330048?s=64&v=4" alt="@vesln" 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/lucasfcosta" class="" data-hovercard-type="user" data-hovercard-url="/users/lucasfcosta/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/6868147?s=64&v=4" alt="@lucasfcosta" 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/domenic" class="" data-hovercard-type="user" data-hovercard-url="/users/domenic/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/617481?s=64&v=4" alt="@domenic" 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/astorije" class="" data-hovercard-type="user" data-hovercard-url="/users/astorije/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/113730?s=64&v=4" alt="@astorije" 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/vieiralucas" class="" data-hovercard-type="user" data-hovercard-url="/users/vieiralucas/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/7764293?s=64&v=4" alt="@vieiralucas" 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/shvaikalesh" class="" data-hovercard-type="user" 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