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class="breadcrumb" property="item" typeof="WebPage"><span property="name">Web APIs</span></a><meta property="position" content="2"/></li><li property="itemListElement" typeof="ListItem"><a href="/en-US/docs/Web/API/Window" class="breadcrumb" property="item" typeof="WebPage"><span property="name">Window</span></a><meta property="position" content="3"/></li><li property="itemListElement" typeof="ListItem"><a href="/en-US/docs/Web/API/Window/reportError" class="breadcrumb-current-page" property="item" typeof="WebPage"><span property="name">reportError()</span></a><meta property="position" content="4"/></li></ol></nav><div class="article-actions"><button type="button" class="button action has-icon article-actions-toggle" aria-label="Article actions"><span class="button-wrap"><span class="icon icon-ellipses "></span><span class="article-actions-dialog-heading">Article Actions</span></span></button><ul class="article-actions-entries"><li class="article-actions-entry"><div class="languages-switcher-menu open-on-focus-within"><button id="languages-switcher-button" type="button" class="button action small has-icon languages-switcher-menu" aria-haspopup="menu"><span class="button-wrap"><span class="icon icon-language "></span>English (US)</span></button><div class="hidden"><ul class="submenu language-menu " aria-labelledby="language-menu-button"><li class=" "><form class="submenu-item locale-redirect-setting"><div class="group"><label class="switch"><input type="checkbox" name="locale-redirect"/><span class="slider"></span><span class="label">Remember language</span></label><a href="https://github.com/orgs/mdn/discussions/739" rel="external noopener noreferrer" target="_blank" title="Enable this setting to automatically switch to this language when it's available. (Click to learn more.)"><span class="icon icon-question-mark "></span></a></div></form></li><li class=" "><a data-locale="de" href="/de/docs/Web/API/Window/reportError" class="button submenu-item"><span>Deutsch</span><span title="Diese Übersetzung ist Teil eines Experiments."><span class="icon icon-experimental "></span></span></a></li><li class=" "><a data-locale="ja" href="/ja/docs/Web/API/Window/reportError" class="button submenu-item"><span>日本語</span></a></li><li class=" "><a data-locale="zh-CN" href="/zh-CN/docs/Web/API/Window/reportError" class="button submenu-item"><span>中文 (简体)</span></a></li></ul></div></div></li></ul></div></div></div></div><div class="main-wrapper"><div class="sidebar-container"><aside id="sidebar-quicklinks" class="sidebar" data-macro="APIRef"><button type="button" class="button action backdrop" aria-label="Collapse sidebar"><span class="button-wrap"></span></button><nav aria-label="Related Topics" class="sidebar-inner"><header class="sidebar-actions"><section class="sidebar-filter-container"><div class="sidebar-filter "><label id="sidebar-filter-label" class="sidebar-filter-label" for="sidebar-filter-input"><span class="icon icon-filter"></span><span class="visually-hidden">Filter sidebar</span></label><input id="sidebar-filter-input" autoComplete="off" class="sidebar-filter-input-field false" type="text" placeholder="Filter" value=""/><button type="button" class="button action has-icon clear-sidebar-filter-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear filter input</span></span></button></div></section></header><div class="sidebar-inner-nav"><div class="in-nav-toc"><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In this article</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#syntax">Syntax</a></li><li class="document-toc-item "><a class="document-toc-link" href="#examples">Examples</a></li><li class="document-toc-item "><a class="document-toc-link" href="#specifications">Specifications</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser_compatibility">Browser compatibility</a></li><li class="document-toc-item "><a class="document-toc-link" href="#see_also">See also</a></li></ul></section></div></div><div class="sidebar-body"><ol><li class="section"><a href="/en-US/docs/Web/API/Document_Object_Model">Document Object Model</a></li><li class="section"><a href="/en-US/docs/Web/API/Window"><code>Window</code></a></li><li class="toggle"><details open=""><summary>Instance properties</summary><ol><li><a href="/en-US/docs/Web/API/Window/caches"><code>caches</code></a></li><li><a href="/en-US/docs/Web/API/Window/closed"><code>closed</code></a></li><li><a href="/en-US/docs/Web/API/Window/console"><code>console</code></a></li><li><a href="/en-US/docs/Web/API/Window/cookieStore"><code>cookieStore</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/credentialless"><code>credentialless</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/crossOriginIsolated"><code>crossOriginIsolated</code></a></li><li><a href="/en-US/docs/Web/API/Window/crypto"><code>crypto</code></a></li><li><a href="/en-US/docs/Web/API/Window/customElements"><code>customElements</code></a></li><li><a href="/en-US/docs/Web/API/Window/devicePixelRatio"><code>devicePixelRatio</code></a></li><li><a href="/en-US/docs/Web/API/Window/document"><code>document</code></a></li><li><a href="/en-US/docs/Web/API/Window/documentPictureInPicture"><code>documentPictureInPicture</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/event"><code>event</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/external"><code>external</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/fence"><code>fence</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/frameElement"><code>frameElement</code></a></li><li><a href="/en-US/docs/Web/API/Window/frames"><code>frames</code></a></li><li><a href="/en-US/docs/Web/API/Window/fullScreen"><code>fullScreen</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/history"><code>history</code></a></li><li><a href="/en-US/docs/Web/API/Window/indexedDB"><code>indexedDB</code></a></li><li><a href="/en-US/docs/Web/API/Window/innerHeight"><code>innerHeight</code></a></li><li><a href="/en-US/docs/Web/API/Window/innerWidth"><code>innerWidth</code></a></li><li><a href="/en-US/docs/Web/API/Window/isSecureContext"><code>isSecureContext</code></a></li><li><a href="/en-US/docs/Web/API/Window/launchQueue"><code>launchQueue</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/length"><code>length</code></a></li><li><a href="/en-US/docs/Web/API/Window/localStorage"><code>localStorage</code></a></li><li><a href="/en-US/docs/Web/API/Window/location"><code>location</code></a></li><li><a href="/en-US/docs/Web/API/Window/locationbar"><code>locationbar</code></a></li><li><a href="/en-US/docs/Web/API/Window/menubar"><code>menubar</code></a></li><li><a href="/en-US/docs/Web/API/Window/mozInnerScreenX"><code>mozInnerScreenX</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/mozInnerScreenY"><code>mozInnerScreenY</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/name"><code>name</code></a></li><li><a href="/en-US/docs/Web/API/Window/navigation"><code>navigation</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/navigator"><code>navigator</code></a></li><li><a href="/en-US/docs/Web/API/Window/opener"><code>opener</code></a></li><li><a href="/en-US/docs/Web/API/Window/orientation"><code>orientation</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/origin"><code>origin</code></a></li><li><a href="/en-US/docs/Web/API/Window/originAgentCluster"><code>originAgentCluster</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/outerHeight"><code>outerHeight</code></a></li><li><a href="/en-US/docs/Web/API/Window/outerWidth"><code>outerWidth</code></a></li><li><a href="/en-US/docs/Web/API/Window/parent"><code>parent</code></a></li><li><a href="/en-US/docs/Web/API/Window/performance"><code>performance</code></a></li><li><a href="/en-US/docs/Web/API/Window/personalbar"><code>personalbar</code></a></li><li><a href="/en-US/docs/Web/API/Window/scheduler"><code>scheduler</code></a></li><li><a href="/en-US/docs/Web/API/Window/screen"><code>screen</code></a></li><li><a href="/en-US/docs/Web/API/Window/screenLeft"><code>screenLeft</code></a></li><li><a href="/en-US/docs/Web/API/Window/screenTop"><code>screenTop</code></a></li><li><a href="/en-US/docs/Web/API/Window/screenX"><code>screenX</code></a></li><li><a href="/en-US/docs/Web/API/Window/screenY"><code>screenY</code></a></li><li><a href="/en-US/docs/Web/API/Window/scrollbars"><code>scrollbars</code></a></li><li><a href="/en-US/docs/Web/API/Window/scrollMaxX"><code>scrollMaxX</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/scrollMaxY"><code>scrollMaxY</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/scrollX"><code>scrollX</code></a></li><li><a href="/en-US/docs/Web/API/Window/scrollY"><code>scrollY</code></a></li><li><a href="/en-US/docs/Web/API/Window/self"><code>self</code></a></li><li><a href="/en-US/docs/Web/API/Window/sessionStorage"><code>sessionStorage</code></a></li><li><a href="/en-US/docs/Web/API/Window/sharedStorage"><code>sharedStorage</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/speechSynthesis"><code>speechSynthesis</code></a></li><li><a href="/en-US/docs/Web/API/Window/status"><code>status</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/statusbar"><code>statusbar</code></a></li><li><a href="/en-US/docs/Web/API/Window/toolbar"><code>toolbar</code></a></li><li><a href="/en-US/docs/Web/API/Window/top"><code>top</code></a></li><li><a href="/en-US/docs/Web/API/Window/trustedTypes"><code>trustedTypes</code></a></li><li><a href="/en-US/docs/Web/API/Window/visualViewport"><code>visualViewport</code></a></li><li><a href="/en-US/docs/Web/API/Window/window"><code>window</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Instance methods</summary><ol><li><a href="/en-US/docs/Web/API/Window/alert"><code>alert()</code></a></li><li><a href="/en-US/docs/Web/API/Window/atob"><code>atob()</code></a></li><li><a href="/en-US/docs/Web/API/Window/back"><code>back()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/blur"><code>blur()</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/btoa"><code>btoa()</code></a></li><li><a href="/en-US/docs/Web/API/Window/cancelAnimationFrame"><code>cancelAnimationFrame()</code></a></li><li><a href="/en-US/docs/Web/API/Window/cancelIdleCallback"><code>cancelIdleCallback()</code></a></li><li><a href="/en-US/docs/Web/API/Window/captureEvents"><code>captureEvents()</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/clearImmediate"><code>clearImmediate()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/clearInterval"><code>clearInterval()</code></a></li><li><a href="/en-US/docs/Web/API/Window/clearTimeout"><code>clearTimeout()</code></a></li><li><a href="/en-US/docs/Web/API/Window/close"><code>close()</code></a></li><li><a href="/en-US/docs/Web/API/Window/confirm"><code>confirm()</code></a></li><li><a href="/en-US/docs/Web/API/Window/createImageBitmap"><code>createImageBitmap()</code></a></li><li><a href="/en-US/docs/Web/API/Window/dump"><code>dump()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/fetch"><code>fetch()</code></a></li><li><a href="/en-US/docs/Web/API/Window/find"><code>find()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/focus"><code>focus()</code></a></li><li><a href="/en-US/docs/Web/API/Window/forward"><code>forward()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/getComputedStyle"><code>getComputedStyle()</code></a></li><li><a href="/en-US/docs/Web/API/Window/getDefaultComputedStyle"><code>getDefaultComputedStyle()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/getScreenDetails"><code>getScreenDetails()</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/getSelection"><code>getSelection()</code></a></li><li><a href="/en-US/docs/Web/API/Window/matchMedia"><code>matchMedia()</code></a></li><li><a href="/en-US/docs/Web/API/Window/moveBy"><code>moveBy()</code></a></li><li><a href="/en-US/docs/Web/API/Window/moveTo"><code>moveTo()</code></a></li><li><a href="/en-US/docs/Web/API/Window/open"><code>open()</code></a></li><li><a href="/en-US/docs/Web/API/Window/postMessage"><code>postMessage()</code></a></li><li><a href="/en-US/docs/Web/API/Window/print"><code>print()</code></a></li><li><a href="/en-US/docs/Web/API/Window/prompt"><code>prompt()</code></a></li><li><a href="/en-US/docs/Web/API/Window/queryLocalFonts"><code>queryLocalFonts()</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/queueMicrotask"><code>queueMicrotask()</code></a></li><li><a href="/en-US/docs/Web/API/Window/releaseEvents"><code>releaseEvents()</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><em><code>reportError()</code> </em></li><li><a href="/en-US/docs/Web/API/Window/requestAnimationFrame"><code>requestAnimationFrame()</code></a></li><li><a href="/en-US/docs/Web/API/Window/requestFileSystem"><code>requestFileSystem()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/requestIdleCallback"><code>requestIdleCallback()</code></a></li><li><a href="/en-US/docs/Web/API/Window/resizeBy"><code>resizeBy()</code></a></li><li><a href="/en-US/docs/Web/API/Window/resizeTo"><code>resizeTo()</code></a></li><li><a href="/en-US/docs/Web/API/Window/scroll"><code>scroll()</code></a></li><li><a href="/en-US/docs/Web/API/Window/scrollBy"><code>scrollBy()</code></a></li><li><a href="/en-US/docs/Web/API/Window/scrollByLines"><code>scrollByLines()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/scrollByPages"><code>scrollByPages()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/scrollTo"><code>scrollTo()</code></a></li><li><a href="/en-US/docs/Web/API/Window/setImmediate"><code>setImmediate()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/setInterval"><code>setInterval()</code></a></li><li><a href="/en-US/docs/Web/API/Window/setResizable"><code>setResizable()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/setTimeout"><code>setTimeout()</code></a></li><li><a href="/en-US/docs/Web/API/Window/showDirectoryPicker"><code>showDirectoryPicker()</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/showModalDialog"><code>showModalDialog()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/showOpenFilePicker"><code>showOpenFilePicker()</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/showSaveFilePicker"><code>showSaveFilePicker()</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/sizeToContent"><code>sizeToContent()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/stop"><code>stop()</code></a></li><li><a href="/en-US/docs/Web/API/Window/structuredClone"><code>structuredClone()</code></a></li><li><a href="/en-US/docs/Web/API/Window/webkitConvertPointFromNodeToPage"><code>webkitConvertPointFromNodeToPage()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/webkitConvertPointFromPageToNode"><code>webkitConvertPointFromPageToNode()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li></ol></details></li><li class="toggle"><details open=""><summary>Events</summary><ol><li><a href="/en-US/docs/Web/API/Window/afterprint_event"><code>afterprint</code></a></li><li><a href="/en-US/docs/Web/API/Window/appinstalled_event"><code>appinstalled</code></a></li><li><a href="/en-US/docs/Web/API/Window/beforeinstallprompt_event"><code>beforeinstallprompt</code></a></li><li><a href="/en-US/docs/Web/API/Window/beforeprint_event"><code>beforeprint</code></a></li><li><a href="/en-US/docs/Web/API/Window/beforeunload_event"><code>beforeunload</code></a></li><li><a href="/en-US/docs/Web/API/Window/blur_event"><code>blur</code></a></li><li><a href="/en-US/docs/Web/API/Window/copy_event"><code>copy</code></a></li><li><a href="/en-US/docs/Web/API/Window/cut_event"><code>cut</code></a></li><li><a href="/en-US/docs/Web/API/Window/devicemotion_event"><code>devicemotion</code></a></li><li><a href="/en-US/docs/Web/API/Window/deviceorientation_event"><code>deviceorientation</code></a></li><li><a href="/en-US/docs/Web/API/Window/deviceorientationabsolute_event"><code>deviceorientationabsolute</code></a></li><li><a href="/en-US/docs/Web/API/Window/error_event"><code>error</code></a></li><li><a href="/en-US/docs/Web/API/Window/focus_event"><code>focus</code></a></li><li><a href="/en-US/docs/Web/API/Window/gamepadconnected_event"><code>gamepadconnected</code></a></li><li><a href="/en-US/docs/Web/API/Window/gamepaddisconnected_event"><code>gamepaddisconnected</code></a></li><li><a href="/en-US/docs/Web/API/Window/hashchange_event"><code>hashchange</code></a></li><li><a href="/en-US/docs/Web/API/Window/languagechange_event"><code>languagechange</code></a></li><li><a href="/en-US/docs/Web/API/Window/load_event"><code>load</code></a></li><li><a href="/en-US/docs/Web/API/Window/message_event"><code>message</code></a></li><li><a href="/en-US/docs/Web/API/Window/messageerror_event"><code>messageerror</code></a></li><li><a href="/en-US/docs/Web/API/Window/offline_event"><code>offline</code></a></li><li><a href="/en-US/docs/Web/API/Window/online_event"><code>online</code></a></li><li><a href="/en-US/docs/Web/API/Window/orientationchange_event"><code>orientationchange</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/pagehide_event"><code>pagehide</code></a></li><li><a href="/en-US/docs/Web/API/Window/pagereveal_event"><code>pagereveal</code></a></li><li><a href="/en-US/docs/Web/API/Window/pageshow_event"><code>pageshow</code></a></li><li><a href="/en-US/docs/Web/API/Window/pageswap_event"><code>pageswap</code></a></li><li><a href="/en-US/docs/Web/API/Window/paste_event"><code>paste</code></a></li><li><a href="/en-US/docs/Web/API/Window/popstate_event"><code>popstate</code></a></li><li><a href="/en-US/docs/Web/API/Window/rejectionhandled_event"><code>rejectionhandled</code></a></li><li><a href="/en-US/docs/Web/API/Window/resize_event"><code>resize</code></a></li><li><a href="/en-US/docs/Web/API/Window/scrollsnapchange_event"><code>scrollsnapchange</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/scrollsnapchanging_event"><code>scrollsnapchanging</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/storage_event"><code>storage</code></a></li><li><a href="/en-US/docs/Web/API/Window/unhandledrejection_event"><code>unhandledrejection</code></a></li><li><a href="/en-US/docs/Web/API/Window/unload_event"><code>unload</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/vrdisplayactivate_event"><code>vrdisplayactivate</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/vrdisplayconnect_event"><code>vrdisplayconnect</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/vrdisplaydeactivate_event"><code>vrdisplaydeactivate</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/vrdisplaydisconnect_event"><code>vrdisplaydisconnect</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Window/vrdisplaypresentchange_event"><code>vrdisplaypresentchange</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li></ol></details></li><li class="toggle"><details open=""><summary>Inheritance</summary><ol><li><a href="/en-US/docs/Web/API/EventTarget"><code>EventTarget</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Related pages for DOM</summary><ol><li><a href="/en-US/docs/Web/API/AbortController"><code>AbortController</code></a></li><li><a href="/en-US/docs/Web/API/AbortSignal"><code>AbortSignal</code></a></li><li><a href="/en-US/docs/Web/API/AbstractRange"><code>AbstractRange</code></a></li><li><a href="/en-US/docs/Web/API/Attr"><code>Attr</code></a></li><li><a href="/en-US/docs/Web/API/CDATASection"><code>CDATASection</code></a></li><li><a href="/en-US/docs/Web/API/CharacterData"><code>CharacterData</code></a></li><li><a href="/en-US/docs/Web/API/Comment"><code>Comment</code></a></li><li><a href="/en-US/docs/Web/API/CustomEvent"><code>CustomEvent</code></a></li><li><a href="/en-US/docs/Web/API/DOMError"><code>DOMError</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/DOMException"><code>DOMException</code></a></li><li><a href="/en-US/docs/Web/API/DOMImplementation"><code>DOMImplementation</code></a></li><li><a href="/en-US/docs/Web/API/DOMParser"><code>DOMParser</code></a></li><li><a href="/en-US/docs/Web/API/DOMPoint"><code>DOMPoint</code></a></li><li><a href="/en-US/docs/Web/API/DOMPointReadOnly"><code>DOMPointReadOnly</code></a></li><li><a href="/en-US/docs/Web/API/DOMRect"><code>DOMRect</code></a></li><li><a href="/en-US/docs/Web/API/DOMTokenList"><code>DOMTokenList</code></a></li><li><a href="/en-US/docs/Web/API/Document"><code>Document</code></a></li><li><a href="/en-US/docs/Web/API/DocumentFragment"><code>DocumentFragment</code></a></li><li><a href="/en-US/docs/Web/API/DocumentType"><code>DocumentType</code></a></li><li><a href="/en-US/docs/Web/API/Element"><code>Element</code></a></li><li><a href="/en-US/docs/Web/API/Event"><code>Event</code></a></li><li><a href="/en-US/docs/Web/API/EventTarget"><code>EventTarget</code></a></li><li><a href="/en-US/docs/Web/API/HTMLCollection"><code>HTMLCollection</code></a></li><li><a href="/en-US/docs/Web/API/MutationObserver"><code>MutationObserver</code></a></li><li><a href="/en-US/docs/Web/API/MutationRecord"><code>MutationRecord</code></a></li><li><a href="/en-US/docs/Web/API/NamedNodeMap"><code>NamedNodeMap</code></a></li><li><a href="/en-US/docs/Web/API/Node"><code>Node</code></a></li><li><a href="/en-US/docs/Web/API/NodeIterator"><code>NodeIterator</code></a></li><li><a href="/en-US/docs/Web/API/NodeList"><code>NodeList</code></a></li><li><a href="/en-US/docs/Web/API/ProcessingInstruction"><code>ProcessingInstruction</code></a></li><li><a href="/en-US/docs/Web/API/Range"><code>Range</code></a></li><li><a href="/en-US/docs/Web/API/StaticRange"><code>StaticRange</code></a></li><li><a href="/en-US/docs/Web/API/Text"><code>Text</code></a></li><li><a href="/en-US/docs/Web/API/TextDecoder"><code>TextDecoder</code></a></li><li><a href="/en-US/docs/Web/API/TextEncoder"><code>TextEncoder</code></a></li><li><a href="/en-US/docs/Web/API/TimeRanges"><code>TimeRanges</code></a></li><li><a href="/en-US/docs/Web/API/TreeWalker"><code>TreeWalker</code></a></li><li><a href="/en-US/docs/Web/API/XMLDocument"><code>XMLDocument</code></a></li></ol></details></li></ol></div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In this article</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#syntax">Syntax</a></li><li class="document-toc-item "><a class="document-toc-link" href="#examples">Examples</a></li><li class="document-toc-item "><a class="document-toc-link" href="#specifications">Specifications</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser_compatibility">Browser compatibility</a></li><li class="document-toc-item "><a class="document-toc-link" href="#see_also">See also</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="en-US"><header><h1>Window: reportError() method</h1></header><div class="section-content"><p>The <strong><code>reportError()</code></strong> method of the <a href="/en-US/docs/Web/API/Window"><code>Window</code></a> interface may be used to report errors to the console or event handlers of global scopes, emulating an uncaught JavaScript exception.</p> <p> This feature is primarily intended for custom event-dispatching or callback-manipulating libraries. Libraries can use this feature to catch errors in callback code and re-throw them to the top level handler. This ensures that an exception in one callback will not prevent others from being handled, while at the same time ensuring that stack trace information is still readily available for debugging at the top level. </p></div><section aria-labelledby="syntax"><h2 id="syntax"><a href="#syntax">Syntax</a></h2><div class="section-content"><div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>reportError(throwable) </code></pre></div></div></section><section aria-labelledby="parameters"><h3 id="parameters"><a href="#parameters">Parameters</a></h3><div class="section-content"><dl> <dt id="throwable"><a href="#throwable"><code>throwable</code></a></dt> <dd> <p>An error object such as a <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError"><code>TypeError</code></a>.</p> </dd> </dl></div></section><section aria-labelledby="return_value"><h3 id="return_value"><a href="#return_value">Return value</a></h3><div class="section-content"><p>None (<a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/undefined"><code>undefined</code></a>).</p></div></section><section aria-labelledby="exceptions"><h3 id="exceptions"><a href="#exceptions">Exceptions</a></h3><div class="section-content"><dl> <dt id="typeerror"><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError"><code>TypeError</code></a></dt> <dd> <p>The method is called without an error argument.</p> </dd> </dl></div></section><section aria-labelledby="examples"><h2 id="examples"><a href="#examples">Examples</a></h2><div class="section-content"><p>Feature test for the method using:</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>if (typeof window.reportError === "function") { // function is defined } </code></pre></div> <p> The following code shows how you might create and report an error, and how it may be caught using either the <code>onerror</code> event handler property or by adding a listener for the <code>error</code> event. Note that the handler assigned to <code>onerror</code> must return <code>true</code> to stop the event propagating further. </p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>const newError = new Error("Some error message", "someFile.js", 11); window.reportError(newError); window.onerror = (message, source, lineno, colno, error) => { console.error(`message: ${error.message}, lineno: ${lineno}`); return true; }; window.addEventListener("error", (error) => { console.error(error.filename); }); // Output // > "message:Some error message, lineno: 11" // > "someFile.js" </code></pre></div></div></section><h2 id="specifications"><a href="#specifications">Specifications</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://html.spec.whatwg.org/multipage/webappapis.html#runtime-script-errors">HTML Standard <br/><small># runtime-script-errors</small></a></td></tr></tbody></table><h2 id="browser_compatibility"><a href="#browser_compatibility">Browser compatibility</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="see_also"><h2 id="see_also"><a href="#see_also">See also</a></h2><div class="section-content"><ul> <li><a href="/en-US/docs/Web/API/Window"><code>Window</code></a></li> <li><a href="/en-US/docs/Web/API/WorkerGlobalScope/reportError"><code>WorkerGlobalScope.reportError()</code></a></li> <li><a href="/en-US/docs/Web/API/Window"><code>Window</code></a>: <a href="/en-US/docs/Web/API/Window/error_event" title="error"><code>error</code></a> event</li> <li><a href="/en-US/docs/Web/API/WorkerGlobalScope"><code>WorkerGlobalScope</code></a>: <a href="/en-US/docs/Web/API/WorkerGlobalScope/error_event" title="error"><code>error</code></a> event</li> <li><a href="/en-US/docs/Web/API/HTMLElement"><code>HTMLElement</code></a>: <a href="/en-US/docs/Web/API/HTMLElement/error_event" title="error"><code>error</code></a> event</li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div 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href="https://foundation.mozilla.org/">Mozilla Foundation</a>.<br/>Portions of this content are ©1998–2024 by individual mozilla.org contributors. Content available under <a href="/en-US/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/en-US/docs/Web/API/Window/reportError","doc":{"isMarkdown":true,"isTranslated":false,"isActive":true,"flaws":{},"title":"Window: reportError() method","mdn_url":"/en-US/docs/Web/API/Window/reportError","locale":"en-US","native":"English (US)","browserCompat":["api.reportError"],"sidebarHTML":"<ol><li class=\"section\"><a href=\"/en-US/docs/Web/API/Document_Object_Model\">Document Object Model</a></li><li class=\"section\"><a href=\"/en-US/docs/Web/API/Window\"><code>Window</code></a></li><li class=\"toggle\"><details open=\"\"><summary>Instance properties</summary><ol><li><a href=\"/en-US/docs/Web/API/Window/caches\"><code>caches</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/closed\"><code>closed</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/console\"><code>console</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/cookieStore\"><code>cookieStore</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/credentialless\"><code>credentialless</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/crossOriginIsolated\"><code>crossOriginIsolated</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/crypto\"><code>crypto</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/customElements\"><code>customElements</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/devicePixelRatio\"><code>devicePixelRatio</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/document\"><code>document</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/documentPictureInPicture\"><code>documentPictureInPicture</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/event\"><code>event</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/external\"><code>external</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/fence\"><code>fence</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/frameElement\"><code>frameElement</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/frames\"><code>frames</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/fullScreen\"><code>fullScreen</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/history\"><code>history</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/indexedDB\"><code>indexedDB</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/innerHeight\"><code>innerHeight</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/innerWidth\"><code>innerWidth</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/isSecureContext\"><code>isSecureContext</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/launchQueue\"><code>launchQueue</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/length\"><code>length</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/localStorage\"><code>localStorage</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/location\"><code>location</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/locationbar\"><code>locationbar</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/menubar\"><code>menubar</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/mozInnerScreenX\"><code>mozInnerScreenX</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/mozInnerScreenY\"><code>mozInnerScreenY</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/name\"><code>name</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/navigation\"><code>navigation</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/navigator\"><code>navigator</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/opener\"><code>opener</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/orientation\"><code>orientation</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/origin\"><code>origin</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/originAgentCluster\"><code>originAgentCluster</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/outerHeight\"><code>outerHeight</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/outerWidth\"><code>outerWidth</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/parent\"><code>parent</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/performance\"><code>performance</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/personalbar\"><code>personalbar</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/scheduler\"><code>scheduler</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/screen\"><code>screen</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/screenLeft\"><code>screenLeft</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/screenTop\"><code>screenTop</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/screenX\"><code>screenX</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/screenY\"><code>screenY</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/scrollbars\"><code>scrollbars</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/scrollMaxX\"><code>scrollMaxX</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/scrollMaxY\"><code>scrollMaxY</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/scrollX\"><code>scrollX</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/scrollY\"><code>scrollY</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/self\"><code>self</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/sessionStorage\"><code>sessionStorage</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/sharedStorage\"><code>sharedStorage</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/speechSynthesis\"><code>speechSynthesis</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/status\"><code>status</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/statusbar\"><code>statusbar</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/toolbar\"><code>toolbar</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/top\"><code>top</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/trustedTypes\"><code>trustedTypes</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/visualViewport\"><code>visualViewport</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/window\"><code>window</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Instance methods</summary><ol><li><a href=\"/en-US/docs/Web/API/Window/alert\"><code>alert()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/atob\"><code>atob()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/back\"><code>back()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/blur\"><code>blur()</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/btoa\"><code>btoa()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/cancelAnimationFrame\"><code>cancelAnimationFrame()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/cancelIdleCallback\"><code>cancelIdleCallback()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/captureEvents\"><code>captureEvents()</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/clearImmediate\"><code>clearImmediate()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/clearInterval\"><code>clearInterval()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/clearTimeout\"><code>clearTimeout()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/close\"><code>close()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/confirm\"><code>confirm()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/createImageBitmap\"><code>createImageBitmap()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/dump\"><code>dump()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/fetch\"><code>fetch()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/find\"><code>find()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/focus\"><code>focus()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/forward\"><code>forward()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/getComputedStyle\"><code>getComputedStyle()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/getDefaultComputedStyle\"><code>getDefaultComputedStyle()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/getScreenDetails\"><code>getScreenDetails()</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/getSelection\"><code>getSelection()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/matchMedia\"><code>matchMedia()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/moveBy\"><code>moveBy()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/moveTo\"><code>moveTo()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/open\"><code>open()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/postMessage\"><code>postMessage()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/print\"><code>print()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/prompt\"><code>prompt()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/queryLocalFonts\"><code>queryLocalFonts()</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/queueMicrotask\"><code>queueMicrotask()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/releaseEvents\"><code>releaseEvents()</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><em><code>reportError()</code> </em></li><li><a href=\"/en-US/docs/Web/API/Window/requestAnimationFrame\"><code>requestAnimationFrame()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/requestFileSystem\"><code>requestFileSystem()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/requestIdleCallback\"><code>requestIdleCallback()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/resizeBy\"><code>resizeBy()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/resizeTo\"><code>resizeTo()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/scroll\"><code>scroll()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/scrollBy\"><code>scrollBy()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/scrollByLines\"><code>scrollByLines()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/scrollByPages\"><code>scrollByPages()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/scrollTo\"><code>scrollTo()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/setImmediate\"><code>setImmediate()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/setInterval\"><code>setInterval()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/setResizable\"><code>setResizable()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/setTimeout\"><code>setTimeout()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/showDirectoryPicker\"><code>showDirectoryPicker()</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/showModalDialog\"><code>showModalDialog()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/showOpenFilePicker\"><code>showOpenFilePicker()</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/showSaveFilePicker\"><code>showSaveFilePicker()</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/sizeToContent\"><code>sizeToContent()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/stop\"><code>stop()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/structuredClone\"><code>structuredClone()</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/webkitConvertPointFromNodeToPage\"><code>webkitConvertPointFromNodeToPage()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/webkitConvertPointFromPageToNode\"><code>webkitConvertPointFromPageToNode()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Events</summary><ol><li><a href=\"/en-US/docs/Web/API/Window/afterprint_event\"><code>afterprint</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/appinstalled_event\"><code>appinstalled</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/beforeinstallprompt_event\"><code>beforeinstallprompt</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/beforeprint_event\"><code>beforeprint</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/beforeunload_event\"><code>beforeunload</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/blur_event\"><code>blur</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/copy_event\"><code>copy</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/cut_event\"><code>cut</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/devicemotion_event\"><code>devicemotion</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/deviceorientation_event\"><code>deviceorientation</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/deviceorientationabsolute_event\"><code>deviceorientationabsolute</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/error_event\"><code>error</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/focus_event\"><code>focus</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/gamepadconnected_event\"><code>gamepadconnected</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/gamepaddisconnected_event\"><code>gamepaddisconnected</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/hashchange_event\"><code>hashchange</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/languagechange_event\"><code>languagechange</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/load_event\"><code>load</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/message_event\"><code>message</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/messageerror_event\"><code>messageerror</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/offline_event\"><code>offline</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/online_event\"><code>online</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/orientationchange_event\"><code>orientationchange</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/pagehide_event\"><code>pagehide</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/pagereveal_event\"><code>pagereveal</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/pageshow_event\"><code>pageshow</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/pageswap_event\"><code>pageswap</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/paste_event\"><code>paste</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/popstate_event\"><code>popstate</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/rejectionhandled_event\"><code>rejectionhandled</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/resize_event\"><code>resize</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/scrollsnapchange_event\"><code>scrollsnapchange</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/scrollsnapchanging_event\"><code>scrollsnapchanging</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/storage_event\"><code>storage</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/unhandledrejection_event\"><code>unhandledrejection</code></a></li><li><a href=\"/en-US/docs/Web/API/Window/unload_event\"><code>unload</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/vrdisplayactivate_event\"><code>vrdisplayactivate</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/vrdisplayconnect_event\"><code>vrdisplayconnect</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/vrdisplaydeactivate_event\"><code>vrdisplaydeactivate</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/vrdisplaydisconnect_event\"><code>vrdisplaydisconnect</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Window/vrdisplaypresentchange_event\"><code>vrdisplaypresentchange</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Inheritance</summary><ol><li><a href=\"/en-US/docs/Web/API/EventTarget\"><code>EventTarget</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Related pages for DOM</summary><ol><li><a href=\"/en-US/docs/Web/API/AbortController\"><code>AbortController</code></a></li><li><a href=\"/en-US/docs/Web/API/AbortSignal\"><code>AbortSignal</code></a></li><li><a href=\"/en-US/docs/Web/API/AbstractRange\"><code>AbstractRange</code></a></li><li><a href=\"/en-US/docs/Web/API/Attr\"><code>Attr</code></a></li><li><a href=\"/en-US/docs/Web/API/CDATASection\"><code>CDATASection</code></a></li><li><a href=\"/en-US/docs/Web/API/CharacterData\"><code>CharacterData</code></a></li><li><a href=\"/en-US/docs/Web/API/Comment\"><code>Comment</code></a></li><li><a href=\"/en-US/docs/Web/API/CustomEvent\"><code>CustomEvent</code></a></li><li><a href=\"/en-US/docs/Web/API/DOMError\"><code>DOMError</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/DOMException\"><code>DOMException</code></a></li><li><a href=\"/en-US/docs/Web/API/DOMImplementation\"><code>DOMImplementation</code></a></li><li><a href=\"/en-US/docs/Web/API/DOMParser\"><code>DOMParser</code></a></li><li><a href=\"/en-US/docs/Web/API/DOMPoint\"><code>DOMPoint</code></a></li><li><a href=\"/en-US/docs/Web/API/DOMPointReadOnly\"><code>DOMPointReadOnly</code></a></li><li><a href=\"/en-US/docs/Web/API/DOMRect\"><code>DOMRect</code></a></li><li><a href=\"/en-US/docs/Web/API/DOMTokenList\"><code>DOMTokenList</code></a></li><li><a href=\"/en-US/docs/Web/API/Document\"><code>Document</code></a></li><li><a href=\"/en-US/docs/Web/API/DocumentFragment\"><code>DocumentFragment</code></a></li><li><a href=\"/en-US/docs/Web/API/DocumentType\"><code>DocumentType</code></a></li><li><a href=\"/en-US/docs/Web/API/Element\"><code>Element</code></a></li><li><a href=\"/en-US/docs/Web/API/Event\"><code>Event</code></a></li><li><a href=\"/en-US/docs/Web/API/EventTarget\"><code>EventTarget</code></a></li><li><a href=\"/en-US/docs/Web/API/HTMLCollection\"><code>HTMLCollection</code></a></li><li><a href=\"/en-US/docs/Web/API/MutationObserver\"><code>MutationObserver</code></a></li><li><a href=\"/en-US/docs/Web/API/MutationRecord\"><code>MutationRecord</code></a></li><li><a href=\"/en-US/docs/Web/API/NamedNodeMap\"><code>NamedNodeMap</code></a></li><li><a href=\"/en-US/docs/Web/API/Node\"><code>Node</code></a></li><li><a href=\"/en-US/docs/Web/API/NodeIterator\"><code>NodeIterator</code></a></li><li><a href=\"/en-US/docs/Web/API/NodeList\"><code>NodeList</code></a></li><li><a href=\"/en-US/docs/Web/API/ProcessingInstruction\"><code>ProcessingInstruction</code></a></li><li><a href=\"/en-US/docs/Web/API/Range\"><code>Range</code></a></li><li><a href=\"/en-US/docs/Web/API/StaticRange\"><code>StaticRange</code></a></li><li><a href=\"/en-US/docs/Web/API/Text\"><code>Text</code></a></li><li><a href=\"/en-US/docs/Web/API/TextDecoder\"><code>TextDecoder</code></a></li><li><a href=\"/en-US/docs/Web/API/TextEncoder\"><code>TextEncoder</code></a></li><li><a href=\"/en-US/docs/Web/API/TimeRanges\"><code>TimeRanges</code></a></li><li><a href=\"/en-US/docs/Web/API/TreeWalker\"><code>TreeWalker</code></a></li><li><a href=\"/en-US/docs/Web/API/XMLDocument\"><code>XMLDocument</code></a></li></ol></details></li></ol>","sidebarMacro":"APIRef","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p>The <strong><code>reportError()</code></strong> method of the <a href=\"/en-US/docs/Web/API/Window\"><code>Window</code></a> interface may be used to report errors to the console or event handlers of global scopes, emulating an uncaught JavaScript exception.</p>\n<p>\n This feature is primarily intended for custom event-dispatching or callback-manipulating libraries.\n Libraries can use this feature to catch errors in callback code and re-throw them to the top level handler.\n This ensures that an exception in one callback will not prevent others from being handled, while at the same time ensuring that stack trace information is still readily available for debugging at the top level.\n</p>"}},{"type":"prose","value":{"id":"syntax","title":"Syntax","isH3":false,"content":"<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>reportError(throwable)\n</code></pre></div>"}},{"type":"prose","value":{"id":"parameters","title":"Parameters","isH3":true,"content":"<dl>\n <dt id=\"throwable\"><a href=\"#throwable\"><code>throwable</code></a></dt>\n <dd>\n <p>An error object such as a <a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError\"><code>TypeError</code></a>.</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"return_value","title":"Return value","isH3":true,"content":"<p>None (<a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/undefined\"><code>undefined</code></a>).</p>"}},{"type":"prose","value":{"id":"exceptions","title":"Exceptions","isH3":true,"content":"<dl>\n <dt id=\"typeerror\"><a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError\"><code>TypeError</code></a></dt>\n <dd>\n <p>The method is called without an error argument.</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"examples","title":"Examples","isH3":false,"content":"<p>Feature test for the method using:</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>if (typeof window.reportError === \"function\") {\n // function is defined\n}\n</code></pre></div>\n<p>\n The following code shows how you might create and report an error, and how it may be caught using either the <code>onerror</code> event handler property or by adding a listener for the <code>error</code> event.\n Note that the handler assigned to <code>onerror</code> must return <code>true</code> to stop the event propagating further.\n</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>const newError = new Error(\"Some error message\", \"someFile.js\", 11);\nwindow.reportError(newError);\n\nwindow.onerror = (message, source, lineno, colno, error) => {\n console.error(`message: ${error.message}, lineno: ${lineno}`);\n return true;\n};\n\nwindow.addEventListener(\"error\", (error) => {\n console.error(error.filename);\n});\n\n// Output\n// > \"message:Some error message, lineno: 11\"\n// > \"someFile.js\"\n</code></pre></div>"}},{"type":"specifications","value":{"title":"Specifications","id":"specifications","isH3":false,"specifications":[{"bcdSpecificationURL":"https://html.spec.whatwg.org/multipage/webappapis.html#runtime-script-errors","title":"HTML Standard"}],"query":"api.reportError"}},{"type":"browser_compatibility","value":{"title":"Browser compatibility","id":"browser_compatibility","isH3":false,"query":"api.reportError"}},{"type":"prose","value":{"id":"see_also","title":"See also","isH3":false,"content":"<ul>\n <li><a href=\"/en-US/docs/Web/API/Window\"><code>Window</code></a></li>\n <li><a href=\"/en-US/docs/Web/API/WorkerGlobalScope/reportError\"><code>WorkerGlobalScope.reportError()</code></a></li>\n <li><a href=\"/en-US/docs/Web/API/Window\"><code>Window</code></a>: <a href=\"/en-US/docs/Web/API/Window/error_event\" title=\"error\"><code>error</code></a> event</li>\n <li><a href=\"/en-US/docs/Web/API/WorkerGlobalScope\"><code>WorkerGlobalScope</code></a>: <a href=\"/en-US/docs/Web/API/WorkerGlobalScope/error_event\" title=\"error\"><code>error</code></a> event</li>\n <li><a href=\"/en-US/docs/Web/API/HTMLElement\"><code>HTMLElement</code></a>: <a href=\"/en-US/docs/Web/API/HTMLElement/error_event\" title=\"error\"><code>error</code></a> event</li>\n</ul>"}}],"toc":[{"text":"Syntax","id":"syntax"},{"text":"Examples","id":"examples"},{"text":"Specifications","id":"specifications"},{"text":"Browser compatibility","id":"browser_compatibility"},{"text":"See also","id":"see_also"}],"summary":"The reportError() method of the Window interface may be used to report errors to the console or event handlers of global scopes, emulating an uncaught JavaScript exception.","popularity":0.0017,"modified":"2024-10-19T01:09:05.000Z","other_translations":[{"locale":"de","title":"Window: reportError()-Methode","native":"Deutsch"},{"locale":"ja","title":"Window: reportError() メソッド","native":"日本語"},{"locale":"zh-CN","title":"Window：reportError() 方法","native":"中文 (简体)"}],"pageType":"web-api-instance-method","source":{"folder":"en-us/web/api/window/reporterror","github_url":"https://github.com/mdn/content/blob/main/files/en-us/web/api/window/reporterror/index.md","last_commit_url":"https://github.com/mdn/content/commit/a44e9fc017ec15af0b8e0c0101ea895b9cb30522","filename":"index.md"},"short_title":"reportError()","parents":[{"uri":"/en-US/docs/Web","title":"References"},{"uri":"/en-US/docs/Web/API","title":"Web APIs"},{"uri":"/en-US/docs/Web/API/Window","title":"Window"},{"uri":"/en-US/docs/Web/API/Window/reportError","title":"reportError()"}],"pageTitle":"Window: reportError() method - Web APIs | MDN","noIndexing":false}}</script></body></html>