CINXE.COM

<!doctype html><html lang="en-US" prefix="og: https://ogp.me/ns#"><head><meta charSet="utf-8"/><meta name="viewport" content="width=device-width,initial-scale=1"/><link rel="icon" href="https://developer.mozilla.org/favicon-48x48.bc390275e955dacb2e65.png"/><link rel="apple-touch-icon" href="https://developer.mozilla.org/apple-touch-icon.528534bba673c38049c2.png"/><meta name="theme-color" content="#ffffff"/><link rel="manifest" href="https://developer.mozilla.org/manifest.f42880861b394dd4dc9b.json"/><link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="MDN Web Docs"/><title>try...catch - JavaScript | MDN</title><link rel="alternate" title="try...catch" href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="en"/><link rel="alternate" title="try...catch" href="https://developer.mozilla.org/es/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="es"/><link rel="alternate" title="try...catch" href="https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="fr"/><link rel="alternate" title="try...catch" href="https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="ja"/><link rel="alternate" title="try...catch" href="https://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="ko"/><link rel="alternate" title="try...catch" href="https://developer.mozilla.org/pt-BR/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="pt"/><link rel="alternate" title="try...catch" href="https://developer.mozilla.org/ru/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="ru"/><link rel="alternate" title="try...catch" href="https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="zh"/><link rel="alternate" title="try...catch 語法" href="https://developer.mozilla.org/zh-TW/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="zh-Hant"/><link rel="alternate" title="try...catch" href="https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Statements/try...catch" hrefLang="de"/><link rel="preload" as="font" type="font/woff2" href="/static/media/Inter.var.c2fe3cb2b7c746f7966a.woff2" crossorigin=""/><link rel="alternate" type="application/rss+xml" title="MDN Blog RSS Feed" href="https://developer.mozilla.org/en-US/blog/rss.xml" hrefLang="en"/><meta name="robots" content="noindex, follow"/><meta name="description" content="Die try...catch-Anweisung besteht aus einem try-Block und entweder einem catch-Block, einem finally-Block oder beidem. Der Code im try-Block wird zuerst ausgeführt, und wenn er eine Ausnahme auslöst, wird der Code im catch-Block ausgeführt. Der Code im finally-Block wird immer ausgeführt, bevor der Kontrollfluss das gesamte Konstrukt verlässt."/><meta property="og:url" content="https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Statements/try...catch"/><meta property="og:title" content="try...catch - JavaScript | MDN"/><meta property="og:type" content="website"/><meta property="og:locale" content="de"/><meta property="og:description" content="Die try...catch-Anweisung besteht aus einem try-Block und entweder einem catch-Block, einem finally-Block oder beidem. Der Code im try-Block wird zuerst ausgeführt, und wenn er eine Ausnahme auslöst, wird der Code im catch-Block ausgeführt. Der Code im finally-Block wird immer ausgeführt, bevor der Kontrollfluss das gesamte Konstrukt verlässt."/><meta property="og:image" content="https://developer.mozilla.org/mdn-social-share.d893525a4fb5fb1f67a2.png"/><meta property="og:image:type" content="image/png"/><meta property="og:image:height" content="1080"/><meta property="og:image:width" content="1920"/><meta property="og:image:alt" content="The MDN Web Docs logo, featuring a blue accent color, displayed on a solid black background."/><meta property="og:site_name" content="MDN Web Docs"/><meta name="twitter:card" content="summary_large_image"/><meta name="twitter:creator" content="MozDevNet"/><link rel="canonical" href="https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Statements/try...catch"/><style media="print">.article-actions-container,.document-toc-container,.language-menu,.main-menu-toggle,.on-github,.page-footer,.place,.sidebar,.top-banner,.top-navigation-main,ul.prev-next{display:none!important}.main-page-content,.main-page-content pre{padding:2px}.main-page-content pre{border-left-width:2px}</style><script src="/static/js/gtag.js" defer=""></script><script defer="" src="/static/js/main.5e889624.js"></script><link href="/static/css/main.26c64ea7.css" rel="stylesheet"/></head><body><script>if(document.body.addEventListener("load",(t=>{t.target.classList.contains("interactive")&&t.target.setAttribute("data-readystate","complete")}),{capture:!0}),window&&document.documentElement){const t={light:"#ffffff",dark:"#1b1b1b"};try{const e=window.localStorage.getItem("theme");e&&(document.documentElement.className=e,document.documentElement.style.backgroundColor=t[e]);const o=window.localStorage.getItem("nop");o&&(document.documentElement.dataset.nop=o)}catch(t){console.warn("Unable to read theme from localStorage",t)}}</script><div id="root"><ul id="nav-access" class="a11y-nav"><li><a id="skip-main" href="#content">Skip to main content</a></li><li><a id="skip-search" href="#top-nav-search-input">Skip to search</a></li><li><a id="skip-select-language" href="#languages-switcher-button">Skip to select language</a></li></ul><div class="page-wrapper category-javascript document-page"><div class="top-banner loading"><section class="place top container"></section></div><div class="sticky-header-container"><header class="top-navigation "><div class="container "><div class="top-navigation-wrap"><a href="/de/" class="logo" aria-label="MDN homepage"><svg id="mdn-docs-logo" xmlns="http://www.w3.org/2000/svg" x="0" y="0" viewBox="0 0 694.9 104.4" style="enable-background:new 0 0 694.9 104.4" xml:space="preserve" role="img"><title>MDN Web Docs</title><path d="M40.3 0 11.7 92.1H0L28.5 0h11.8zm10.4 0v92.1H40.3V0h10.4zM91 0 62.5 92.1H50.8L79.3 0H91zm10.4 0v92.1H91V0h10.4z" class="logo-m"></path><path d="M627.9 95.6h67v8.8h-67v-8.8z" class="logo-_"></path><path d="M367 42h-4l-10.7 30.8h-5.5l-10.8-26h-.4l-10.5 26h-5.2L308.7 42h-3.8v-5.6H323V42h-6.5l6.8 20.4h.4l10.3-26h4.7l11.2 26h.5l5.7-20.3h-6.2v-5.6H367V42zm34.9 20c-.4 3.2-2 5.9-4.7 8.2-2.8 2.3-6.5 3.4-11.3 3.4-5.4 0-9.7-1.6-13.1-4.7-3.3-3.2-5-7.7-5-13.7 0-5.7 1.6-10.3 4.7-14s7.4-5.5 12.9-5.5c5.1 0 9.1 1.6 11.9 4.7s4.3 6.9 4.3 11.3c0 1.5-.2 3-.5 4.7h-25.6c.3 7.7 4 11.6 10.9 11.6 2.9 0 5.1-.7 6.5-2 1.5-1.4 2.5-3 3-4.9l6 .9zM394 51.3c.2-2.4-.4-4.7-1.8-6.9s-3.8-3.3-7-3.3c-3.1 0-5.3 1-6.9 3-1.5 2-2.5 4.4-2.8 7.2H394zm51 2.4c0 5-1.3 9.5-4 13.7s-6.9 6.2-12.7 6.2c-6 0-10.3-2.2-12.7-6.7-.1.4-.2 1.4-.4 2.9s-.3 2.5-.4 2.9h-7.3c.3-1.7.6-3.5.8-5.3.3-1.8.4-3.7.4-5.5V22.3h-6v-5.6H416v27c1.1-2.2 2.7-4.1 4.7-5.7 2-1.6 4.8-2.4 8.4-2.4 4.6 0 8.4 1.6 11.4 4.7 3 3.2 4.5 7.6 4.5 13.4zm-7.7.6c0-4.2-1-7.4-3-9.5-2-2.2-4.4-3.3-7.4-3.3-3.4 0-6 1.2-8 3.7-1.9 2.4-2.9 5-3 7.7V57c0 3 1 5.6 3 7.7s4.5 3.1 7.6 3.1c3.6 0 6.3-1.3 8.1-3.9 1.8-2.7 2.7-5.9 2.7-9.6zm69.2 18.5h-13.2v-7.2c-1.2 2.2-2.8 4.1-4.9 5.6-2.1 1.6-4.8 2.4-8.3 2.4-4.8 0-8.7-1.6-11.6-4.9-2.9-3.2-4.3-7.7-4.3-13.3 0-5 1.3-9.6 4-13.7 2.6-4.1 6.9-6.2 12.8-6.2 5.7 0 9.8 2.2 12.3 6.5V22.3h-8.6v-5.6h15.8v50.6h6v5.5zM493.2 56v-4.4c-.1-3-1.2-5.5-3.2-7.3s-4.4-2.8-7.2-2.8c-3.6 0-6.3 1.3-8.2 3.9-1.9 2.6-2.8 5.8-2.8 9.6 0 4.1 1 7.3 3 9.5s4.5 3.3 7.4 3.3c3.2 0 5.8-1.3 7.8-3.8 2.1-2.6 3.1-5.3 3.2-8zm53.1-1.4c0 5.6-1.8 10.2-5.3 13.7s-8.2 5.3-13.9 5.3-10.1-1.7-13.4-5.1c-3.3-3.4-5-7.9-5-13.5 0-5.3 1.6-9.9 4.7-13.7 3.2-3.8 7.9-5.7 14.2-5.7s11 1.9 14.1 5.7c3 3.7 4.6 8.1 4.6 13.3zm-7.7-.2c0-4-1-7.2-3-9.5s-4.8-3.5-8.2-3.5c-3.6 0-6.4 1.2-8.3 3.7s-2.9 5.6-2.9 9.5c0 3.7.9 6.8 2.8 9.4 1.9 2.6 4.6 3.9 8.3 3.9 3.6 0 6.4-1.3 8.4-3.8 1.9-2.6 2.9-5.8 2.9-9.7zm45 5.8c-.4 3.2-1.9 6.3-4.4 9.1-2.5 2.9-6.4 4.3-11.8 4.3-5.2 0-9.4-1.6-12.6-4.8-3.2-3.2-4.8-7.7-4.8-13.7 0-5.5 1.6-10.1 4.7-13.9 3.2-3.8 7.6-5.7 13.2-5.7 2.3 0 4.6.3 6.7.8 2.2.5 4.2 1.5 6.2 2.9l1.5 9.5-5.9.7-1.3-6.1c-2.1-1.2-4.5-1.8-7.2-1.8-3.5 0-6.1 1.2-7.7 3.7-1.7 2.5-2.5 5.7-2.5 9.6 0 4.1.9 7.3 2.7 9.5 1.8 2.3 4.4 3.4 7.8 3.4 5.2 0 8.2-2.9 9.2-8.8l6.2 1.3zm34.7 1.9c0 3.6-1.5 6.5-4.6 8.5s-7 3-11.7 3c-5.7 0-10.6-1.2-14.6-3.6l1.2-8.8 5.7.6-.2 4.7c1.1.5 2.3.9 3.6 1.1s2.6.3 3.9.3c2.4 0 4.5-.4 6.5-1.3 1.9-.9 2.9-2.2 2.9-4.1 0-1.8-.8-3.1-2.3-3.8s-3.5-1.3-5.8-1.7-4.6-.9-6.9-1.4c-2.3-.6-4.2-1.6-5.7-2.9-1.6-1.4-2.3-3.5-2.3-6.3 0-4.1 1.5-6.9 4.6-8.5s6.4-2.4 9.9-2.4c2.6 0 5 .3 7.2.9 2.2.6 4.3 1.4 6.1 2.4l.8 8.8-5.8.7-.8-5.7c-2.3-1-4.7-1.6-7.2-1.6-2.1 0-3.7.4-5.1 1.1-1.3.8-2 2-2 3.8 0 1.7.8 2.9 2.3 3.6 1.5.7 3.4 1.2 5.7 1.6 2.2.4 4.5.8 6.7 1.4 2.2.6 4.1 1.6 5.7 3 1.4 1.6 2.2 3.7 2.2 6.6zM197.6 73.2h-17.1v-5.5h3.8V51.9c0-3.7-.7-6.3-2.1-7.9-1.4-1.6-3.3-2.3-5.7-2.3-3.2 0-5.6 1.1-7.2 3.4s-2.4 4.6-2.5 6.9v15.6h6v5.5h-17.1v-5.5h3.8V51.9c0-3.8-.7-6.4-2.1-7.9-1.4-1.5-3.3-2.3-5.6-2.3-3.2 0-5.5 1.1-7.2 3.3-1.6 2.2-2.4 4.5-2.5 6.9v15.8h6.9v5.5h-20.2v-5.5h6V42.4h-6.1v-5.6h13.4v6.4c1.2-2.1 2.7-3.8 4.7-5.2 2-1.3 4.4-2 7.3-2s5.3.7 7.5 2.1c2.2 1.4 3.7 3.5 4.5 6.4 1.1-2.5 2.7-4.5 4.9-6.1s4.8-2.4 7.9-2.4c3.5 0 6.5 1.1 8.9 3.3s3.7 5.6 3.7 10.2v18.2h6.1v5.5zm42.5 0h-13.2V66c-1.2 2.2-2.8 4.1-4.9 5.6-2.1 1.6-4.8 2.4-8.3 2.4-4.8 0-8.7-1.6-11.6-4.9-2.9-3.2-4.3-7.7-4.3-13.3 0-5 1.3-9.6 4-13.7 2.6-4.1 6.9-6.2 12.8-6.2s9.8 2.2 12.3 6.5V22.7h-8.6v-5.6h15.8v50.6h6v5.5zm-13.3-16.8V52c-.1-3-1.2-5.5-3.2-7.3s-4.4-2.8-7.2-2.8c-3.6 0-6.3 1.3-8.2 3.9-1.9 2.6-2.8 5.8-2.8 9.6 0 4.1 1 7.3 3 9.5s4.5 3.3 7.4 3.3c3.2 0 5.8-1.3 7.8-3.8 2.1-2.6 3.1-5.3 3.2-8zm61.5 16.8H269v-5.5h6V51.9c0-3.7-.7-6.3-2.2-7.9-1.4-1.6-3.4-2.3-5.7-2.3-3.1 0-5.6 1-7.4 3s-2.8 4.4-2.9 7v15.9h6v5.5h-19.3v-5.5h6V42.4h-6.2v-5.6h13.6V43c2.6-4.6 6.8-6.9 12.7-6.9 3.6 0 6.7 1.1 9.2 3.3s3.7 5.6 3.7 10.2v18.2h6v5.4h-.2z" class="logo-text"></path></svg></a><button title="Open main menu" type="button" class="button action has-icon main-menu-toggle" aria-haspopup="menu" aria-label="Open main menu" aria-expanded="false"><span class="button-wrap"><span class="icon icon-menu "></span><span class="visually-hidden">Open main menu</span></span></button></div><div class="top-navigation-main"><nav class="main-nav" aria-label="Main menu"><ul class="main-menu nojs"><li class="top-level-entry-container active"><button type="button" id="references-button" class="top-level-entry menu-toggle" aria-controls="references-menu" aria-expanded="false">References</button><a href="/de/docs/Web" class="top-level-entry">References</a><ul id="references-menu" class="submenu references hidden inline-submenu-lg" aria-labelledby="references-button"><li class="apis-link-container mobile-only "><a href="/de/docs/Web" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Overview / Web Technology</div><p class="submenu-item-description">Web technology reference for developers</p></div></a></li><li class="html-link-container "><a href="/de/docs/Web/HTML" class="submenu-item "><div class="submenu-icon html"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTML</div><p class="submenu-item-description">Structure of content on the web</p></div></a></li><li class="css-link-container "><a href="/de/docs/Web/CSS" class="submenu-item "><div class="submenu-icon css"></div><div class="submenu-content-container"><div class="submenu-item-heading">CSS</div><p class="submenu-item-description">Code used to describe document style</p></div></a></li><li class="javascript-link-container "><a href="/de/docs/Web/JavaScript" class="submenu-item "><div class="submenu-icon javascript"></div><div class="submenu-content-container"><div class="submenu-item-heading">JavaScript</div><p class="submenu-item-description">General-purpose scripting language</p></div></a></li><li class="http-link-container "><a href="/de/docs/Web/HTTP" class="submenu-item "><div class="submenu-icon http"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTTP</div><p class="submenu-item-description">Protocol for transmitting web resources</p></div></a></li><li class="apis-link-container "><a href="/de/docs/Web/API" class="submenu-item "><div class="submenu-icon apis"></div><div class="submenu-content-container"><div class="submenu-item-heading">Web APIs</div><p class="submenu-item-description">Interfaces for building web applications</p></div></a></li><li class="apis-link-container "><a href="/de/docs/Mozilla/Add-ons/WebExtensions" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Web Extensions</div><p class="submenu-item-description">Developing extensions for web browsers</p></div></a></li><li class="apis-link-container desktop-only "><a href="/de/docs/Web" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Web Technology</div><p class="submenu-item-description">Web technology reference for developers</p></div></a></li></ul></li><li class="top-level-entry-container "><button type="button" id="guides-button" class="top-level-entry menu-toggle" aria-controls="guides-menu" aria-expanded="false">Guides</button><a href="/de/docs/Learn" class="top-level-entry">Guides</a><ul id="guides-menu" class="submenu guides hidden inline-submenu-lg" aria-labelledby="guides-button"><li class="apis-link-container mobile-only "><a href="/de/docs/Learn" class="submenu-item "><div class="submenu-icon learn"></div><div class="submenu-content-container"><div class="submenu-item-heading">Overview / MDN Learning Area</div><p class="submenu-item-description">Learn web development</p></div></a></li><li class="apis-link-container desktop-only "><a href="/de/docs/Learn" class="submenu-item "><div class="submenu-icon learn"></div><div class="submenu-content-container"><div class="submenu-item-heading">MDN Learning Area</div><p class="submenu-item-description">Learn web development</p></div></a></li><li class="html-link-container "><a href="/de/docs/Learn/HTML" class="submenu-item "><div class="submenu-icon html"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTML</div><p class="submenu-item-description">Learn to structure web content with HTML</p></div></a></li><li class="css-link-container "><a href="/de/docs/Learn/CSS" class="submenu-item "><div class="submenu-icon css"></div><div class="submenu-content-container"><div class="submenu-item-heading">CSS</div><p class="submenu-item-description">Learn to style content using CSS</p></div></a></li><li class="javascript-link-container "><a href="/de/docs/Learn/JavaScript" class="submenu-item "><div class="submenu-icon javascript"></div><div class="submenu-content-container"><div class="submenu-item-heading">JavaScript</div><p class="submenu-item-description">Learn to run scripts in the browser</p></div></a></li><li class=" "><a href="/de/docs/Web/Accessibility" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Accessibility</div><p class="submenu-item-description">Learn to make the web accessible to all</p></div></a></li></ul></li><li class="top-level-entry-container "><button type="button" id="mdn-plus-button" class="top-level-entry menu-toggle" aria-controls="mdn-plus-menu" aria-expanded="false">Plus</button><a href="/de/plus" class="top-level-entry">Plus</a><ul id="mdn-plus-menu" class="submenu mdn-plus hidden inline-submenu-lg" aria-labelledby="mdn-plus-button"><li class=" "><a href="/de/plus" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Overview</div><p class="submenu-item-description">A customized MDN experience</p></div></a></li><li class=" "><a href="/de/plus/ai-help" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">AI Help</div><p class="submenu-item-description">Get real-time assistance and support</p></div></a></li><li class=" "><a href="/de/plus/updates" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Updates</div><p class="submenu-item-description">All browser compatibility updates at a glance</p></div></a></li><li class=" "><a href="/en-US/plus/docs/features/overview" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Documentation</div><p class="submenu-item-description">Learn how to use MDN Plus</p></div></a></li><li class=" "><a href="/en-US/plus/docs/faq" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">FAQ</div><p class="submenu-item-description">Frequently asked questions about MDN Plus</p></div></a></li></ul></li><li class="top-level-entry-container "><a class="top-level-entry menu-link" href="/en-US/curriculum/">Curriculum <sup class="new">New</sup></a></li><li class="top-level-entry-container "><a class="top-level-entry menu-link" href="/en-US/blog/">Blog</a></li><li class="top-level-entry-container "><button type="button" id="tools-button" class="top-level-entry menu-toggle" aria-controls="tools-menu" aria-expanded="false">Tools</button><ul id="tools-menu" class="submenu tools hidden inline-submenu-lg" aria-labelledby="tools-button"><li class=" "><a href="/de/play" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Playground</div><p class="submenu-item-description">Write, test and share your code</p></div></a></li><li class=" "><a href="/en-US/observatory" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTTP Observatory</div><p class="submenu-item-description">Scan a website for free</p></div></a></li><li class=" "><a href="/en-US/plus/ai-help" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">AI Help</div><p class="submenu-item-description">Get real-time assistance and support</p></div></a></li></ul></li></ul></nav><div class="header-search"><form action="/de/search" class="search-form search-widget" id="top-nav-search-form" role="search"><label id="top-nav-search-label" for="top-nav-search-input" class="visually-hidden">Search MDN</label><input aria-activedescendant="" aria-autocomplete="list" aria-controls="top-nav-search-menu" aria-expanded="false" aria-labelledby="top-nav-search-label" autoComplete="off" id="top-nav-search-input" role="combobox" type="search" class="search-input-field" name="q" placeholder=" " required="" value=""/><button type="button" class="button action has-icon clear-search-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear search input</span></span></button><button type="submit" class="button action has-icon search-button"><span class="button-wrap"><span class="icon icon-search "></span><span class="visually-hidden">Search</span></span></button><div id="top-nav-search-menu" role="listbox" aria-labelledby="top-nav-search-label"></div></form></div><div class="theme-switcher-menu"><button type="button" class="button action has-icon theme-switcher-menu small" aria-haspopup="menu"><span class="button-wrap"><span class="icon icon-theme-os-default "></span>Theme</span></button></div><ul class="auth-container"><li><a href="/users/fxa/login/authenticate/?next=%2Fde%2Fdocs%2FWeb%2FJavaScript%2FReference%2FStatements%2Ftry...catch" class="login-link" rel="nofollow">Log in</a></li><li><a href="/users/fxa/login/authenticate/?next=%2Fde%2Fdocs%2FWeb%2FJavaScript%2FReference%2FStatements%2Ftry...catch" target="_self" rel="nofollow" class="button primary mdn-plus-subscribe-link"><span class="button-wrap">Sign up for free</span></a></li></ul></div></div></header><div class="article-actions-container"><div class="container"><button type="button" class="button action has-icon sidebar-button" aria-label="Expand sidebar" aria-expanded="false" aria-controls="sidebar-quicklinks"><span class="button-wrap"><span class="icon icon-sidebar "></span></span></button><nav class="breadcrumbs-container" aria-label="Breadcrumb"><ol typeof="BreadcrumbList" vocab="https://schema.org/" aria-label="breadcrumbs"><li property="itemListElement" typeof="ListItem"><a href="/de/docs/Web" class="breadcrumb" property="item" typeof="WebPage"><span property="name">Web-Technologien für Entwickler</span></a><meta property="position" content="1"/></li><li property="itemListElement" typeof="ListItem"><a href="/de/docs/Web/JavaScript" class="breadcrumb" property="item" typeof="WebPage"><span property="name">JavaScript</span></a><meta property="position" content="2"/></li><li property="itemListElement" typeof="ListItem"><a href="/de/docs/Web/JavaScript/Reference" class="breadcrumb" property="item" typeof="WebPage"><span property="name">JavaScript-Referenz</span></a><meta property="position" content="3"/></li><li property="itemListElement" typeof="ListItem"><a href="/de/docs/Web/JavaScript/Reference/Statements" class="breadcrumb" property="item" typeof="WebPage"><span property="name">Statements und Deklarationen</span></a><meta property="position" content="4"/></li><li property="itemListElement" typeof="ListItem"><a href="/de/docs/Web/JavaScript/Reference/Statements/try...catch" class="breadcrumb-current-page" property="item" typeof="WebPage"><span property="name">try...catch</span></a><meta property="position" content="5"/></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>Deutsch<span title="Diese Übersetzung ist Teil eines Experiments."><span class="icon icon-experimental "></span></span></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="en-US" href="/en-US/docs/Web/JavaScript/Reference/Statements/try...catch" class="button submenu-item"><span>English (US)</span></a></li><li class=" "><a data-locale="es" href="/es/docs/Web/JavaScript/Reference/Statements/try...catch" class="button submenu-item"><span>Español</span></a></li><li class=" "><a data-locale="fr" href="/fr/docs/Web/JavaScript/Reference/Statements/try...catch" class="button submenu-item"><span>Français</span></a></li><li class=" "><a data-locale="ja" href="/ja/docs/Web/JavaScript/Reference/Statements/try...catch" class="button submenu-item"><span>日本語</span></a></li><li class=" "><a data-locale="ko" href="/ko/docs/Web/JavaScript/Reference/Statements/try...catch" class="button submenu-item"><span>한국어</span></a></li><li class=" "><a data-locale="pt-BR" href="/pt-BR/docs/Web/JavaScript/Reference/Statements/try...catch" class="button submenu-item"><span>Português (do Brasil)</span></a></li><li class=" "><a data-locale="ru" href="/ru/docs/Web/JavaScript/Reference/Statements/try...catch" class="button submenu-item"><span>Русский</span></a></li><li class=" "><a data-locale="zh-CN" href="/zh-CN/docs/Web/JavaScript/Reference/Statements/try...catch" class="button submenu-item"><span>中文 (简体)</span></a></li><li class=" "><a data-locale="zh-TW" href="/zh-TW/docs/Web/JavaScript/Reference/Statements/try...catch" class="button submenu-item"><span>正體中文 (繁體)</span></a></li></ul></div></div></li></ul></div></div></div></div><div class="container"><div class="notecard experimental localized-content-note"><p><a href="https://github.com/orgs/mdn/discussions/741" class="external"><strong>Experiment</strong>: Dieser Inhalt wurde automatisch aus dem Englischen übersetzt, und kann Fehler enthalten.</a></p></div></div><div class="main-wrapper"><div class="sidebar-container"><aside id="sidebar-quicklinks" class="sidebar" data-macro="JsSidebar"><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 diesem Artikel</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#probieren_sie_es_aus">Probieren Sie es aus</a></li><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="#beschreibung">Beschreibung</a></li><li class="document-toc-item "><a class="document-toc-link" href="#beispiele">Beispiele</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spezifikationen">Spezifikationen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser-kompatibilität">Browser-Kompatibilität</a></li><li class="document-toc-item "><a class="document-toc-link" href="#siehe_auch">Siehe auch</a></li></ul></section></div></div><div class="sidebar-body"> <ol> <li class="section"><a href="/de/docs/Web/JavaScript">JavaScript</a></li> <li class="section">Tutorials</li> <li class="toggle"> <details> <summary>Komplette Anfänger</summary> <ol> <li><a href="/de/docs/Learn/Getting_started_with_the_web/JavaScript_basics">JavaScript-Grundlagen</a></li> <li><a href="/de/docs/Learn/JavaScript/First_steps">Erste Schritte in JavaScript</a></li> <li><a href="/de/docs/Learn/JavaScript/Building_blocks">JavaScript-Bausteine</a></li> <li><a href="/de/docs/Learn/JavaScript/Objects">Einführung in JavaScript-Objekte</a></li> </ol> </details> </li> <li class="toggle"> <details> <summary>JavaScript-Handbuch</summary> <ol> <li><a href="/de/docs/Web/JavaScript/Guide/Introduction">Einführung</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Grammar_and_types">Grammatik und Typen</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Control_flow_and_error_handling">Steuerfluss und Fehlerbehandlung</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Loops_and_iteration">Schleifen und Iteration</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Functions">Funktionen</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Expressions_and_operators">Ausdrücke und Operatoren</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Numbers_and_dates">Zahlen und Daten</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Text_formatting">Textformatierung</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Regular_expressions">Reguläre Ausdrücke</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Indexed_collections">Indexierte Sammlungen</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Keyed_collections">Gekennzeichnete Sammlungen</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Working_with_objects">Arbeiten mit Objekten</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Using_classes">Verwendung von Klassen</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Using_promises">Verwendung von Promises</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Typed_arrays">Typisierte Arrays in JavaScript</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Iterators_and_generators">Iteratoren und Generatoren</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Meta_programming">Metaprogrammierung</a></li> <li><a href="/de/docs/Web/JavaScript/Guide/Modules">JavaScript-Module</a></li> </ol> </details> </li> <li class="toggle"> <details> <summary>Mittelstufe</summary> <ol> <li><a href="/de/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks">Client-seitige JavaScript-Frameworks</a></li> <li><a href="/de/docs/Learn/JavaScript/Client-side_web_APIs">Client-seitige Web-APIs</a></li> <li><a href="/de/docs/Web/JavaScript/Language_overview">Sprachübersicht</a></li> <li><a href="/de/docs/Web/JavaScript/Data_structures">JavaScript-Datenstrukturen</a></li> <li><a href="/de/docs/Web/JavaScript/Equality_comparisons_and_sameness">Gleichheitsvergleiche und Gleichheit</a></li> <li><a href="/de/docs/Web/JavaScript/Enumerability_and_ownership_of_properties">Aufzählbarkeit und Eigentum von Eigenschaften</a></li> <li><a href="/de/docs/Web/JavaScript/Closures">Closures</a></li> </ol> </details> </li> <li class="toggle"> <details> <summary>Fortgeschritten</summary> <ol> <li><a href="/de/docs/Web/JavaScript/Inheritance_and_the_prototype_chain">Vererbung und die Prototypenkette</a></li> <li><a href="/de/docs/Web/JavaScript/Memory_management">Speicherverwaltung</a></li> <li><a href="/de/docs/Web/JavaScript/Event_loop">Konkurrenzmodell und Ereignisschleife</a></li> </ol> </details> </li> <li class="section"><a href="/de/docs/Web/JavaScript/Reference">Referenzen</a></li> <li class="toggle"> <details> <summary>Eingebaute Objekte</summary> <ol><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects">Standard eingebaute Objekte</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/AggregateError">AggregateError</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer">ArrayBuffer</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/AsyncFunction">AsyncFunction</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/AsyncGenerator">AsyncGenerator</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/AsyncGeneratorFunction">AsyncGeneratorFunction</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/AsyncIterator">AsyncIterator</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Atomics">Atomics</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/BigInt">BigInt</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/BigInt64Array">BigInt64Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/BigUint64Array">BigUint64Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Boolean">Boolean</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/DataView">DataView</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Date">Date</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/decodeURI">decodeURI()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent">decodeURIComponent()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/encodeURI">encodeURI()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent">encodeURIComponent()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Error">Error</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/escape">escape()</a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/eval">eval()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/EvalError">EvalError</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/FinalizationRegistry">FinalizationRegistry</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Float16Array">Float16Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Float32Array">Float32Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Float64Array">Float64Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Function">Function</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Generator">Generator</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/GeneratorFunction">GeneratorFunction</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/globalThis">globalThis</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Infinity">Infinity</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Int16Array">Int16Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Int32Array">Int32Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Int8Array">Int8Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/InternalError">InternalError</a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Intl">Intl</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/isFinite">isFinite()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/isNaN">isNaN()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Iterator">Iterator</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/JSON">JSON</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Map">Map</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Math">Math</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/NaN">NaN</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Number">Number</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Object">Object</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/parseFloat">parseFloat()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/parseInt">parseInt()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Promise">Promise</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Proxy">Proxy</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/RangeError">RangeError</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError">ReferenceError</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Reflect">Reflect</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/RegExp">RegExp</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Set">Set</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer">SharedArrayBuffer</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/String">String</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Symbol">Symbol</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError">SyntaxError</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/TypedArray">TypedArray</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/TypeError">TypeError</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Uint16Array">Uint16Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Uint32Array">Uint32Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array">Uint8Array</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray">Uint8ClampedArray</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/undefined">undefined</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/unescape">unescape()</a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/URIError">URIError</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/WeakMap">WeakMap</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/WeakRef">WeakRef</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/WeakSet">WeakSet</a></li></ol> </details> </li> <li class="toggle"> <details> <summary>Ausdrücke und Operatoren</summary> <ol><li><a href="/de/docs/Web/JavaScript/Reference/Operators">Ausdrücke und Operatoren</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Addition">Addition (+)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Addition_assignment">Addition Assignment (+=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Assignment">Zuweisung (=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/async_function">async function expression</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/async_function*">async function* Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/await">await</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Bitwise_AND">Bitweises UND (&)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Bitwise_AND_assignment">Bitweise UND-Zuweisung (&=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Bitwise_NOT">Bitweise NOT (~)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Bitwise_OR">Bitweises Oder (|)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Bitwise_OR_assignment">Bitweises OR-Zuweisung (|=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR">Bitweises XOR (^)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR_assignment">Bitweises XOR-Zuweisung (^=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/class">Klassenausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Comma_operator">Komma-Operator (,)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Conditional_operator">Bedingungsoperator (ternärer Operator)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Decrement">Decrement (--)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/delete">delete</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment">Destructuring-Zuweisung</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Division">Division (/)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Division_assignment">Division assignment (/=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Equality">Gleichheit (==)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Exponentiation">Potenzierung (**)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Exponentiation_assignment">Exponentiation-Zuweisung (**=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/function">function expression</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/function*">function* Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Greater_than">Greater than (>)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Greater_than_or_equal">Greater than or equal (>=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Grouping">Gruppierungsoperator ( )</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/import.meta">import.meta</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/import">import()</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/in">in</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Increment">Increment (++)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Inequality">Inequality (!=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/instanceof">instanceof</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Left_shift">Left shift (<<)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Left_shift_assignment">Left shift assignment (<<=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Less_than">Less than (<)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Less_than_or_equal">Less than or equal (<=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Logical_AND">Logisches UND (&&)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Logical_AND_assignment">Logical AND assignment (&&=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Logical_NOT">Logisches NICHT (!)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Logical_OR">Logical OR (||)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Logical_OR_assignment">Logische ODER-Zuweisung (||=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Multiplication">Multiplication (*)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Multiplication_assignment">Multiplikationszuweisung (*=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/new">new</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/new.target">new.target</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/null">null</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing_assignment">Nullish coalescing assignment (??=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing">Nullish coalescing-Operator (??)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Object_initializer">Object initializer</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Operator_precedence">Operatorpriorität</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Optional_chaining">Optional Chaining (?.)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Property_accessors">Property accessors</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Remainder">Remainder (%)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Remainder_assignment">Remainder-Zuweisung (%=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Right_shift">Rechtsschiebung (>>)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Right_shift_assignment">Right shift assignment (>>=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Spread_syntax">Spread-Syntax (...)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Strict_equality">Strikte Gleichheit (===)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Strict_inequality">Strikte Ungleichheit (!==)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Subtraction">Subtraction (-)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Subtraction_assignment">Subtraction assignment (-=)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/super">super</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/this">this</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/typeof">typeof</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Unary_negation">Unäre Negation (-)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Unary_plus">Unary plus (+)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift">Unsigned right shift (>>>)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift_assignment">Unsigned right shift assignment (`>>>=`)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/void">void operator</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/yield">yield</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Operators/yield*">yield*</a></li></ol> </details> </li> <li class="toggle"> <details open=""> <summary>Anweisungen und Deklarationen</summary> <ol><li><a href="/de/docs/Web/JavaScript/Reference/Statements">Statements und Deklarationen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/async_function">async function</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/async_function*">async function*</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/block">Block Statement</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/break">break</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/class">class</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/const">const</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/continue">continue</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/debugger">debugger</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/do...while">do...while</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/Empty">Empty Statement</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/export">export</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/Expression_statement">Expression statement</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/for">for</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/for-await...of">for await...of</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/for...in">for...in</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/for...of">for...of</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/function">function</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/function*">function*</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/if...else">if...else</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/import">import</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/label">Labelierte Anweisung</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/let">let</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/return">return</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/switch">switch</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/throw">throw</a></li><li><em><a href="/de/docs/Web/JavaScript/Reference/Statements/try...catch" aria-current="page">try...catch</a></em></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/var">var</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/while">while</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Statements/with">with</a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li></ol> </details> </li> <li class="toggle"> <details> <summary>Funktionen</summary> <ol><li><a href="/de/docs/Web/JavaScript/Reference/Functions">Functions</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Functions/Arrow_functions">Pfeilfunktionen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Functions/Default_parameters">Default parameters</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Functions/get">get</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Functions/Method_definitions">Methodendefinitionen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Functions/rest_parameters">Rest-Parameter</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Functions/set">set</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Functions/arguments">Das arguments Objekt</a></li></ol> </details> </li> <li class="toggle"> <details> <summary>Klassen</summary> <ol><li><a href="/de/docs/Web/JavaScript/Reference/Classes">Klassen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Classes/constructor">constructor</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Classes/extends">extends</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Classes/Private_properties">Private properties</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Classes/Public_class_fields">Public class fields</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Classes/static">static</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Classes/Static_initialization_blocks">Statische Initialisierungsblöcke</a></li></ol> </details> </li> <li class="toggle"> <details> <summary>Reguläre Ausdrücke</summary> <ol><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions">Regular expressions</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Backreference">Backreference: \1, \2</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Capturing_group">Capturing group: (...)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Character_class_escape">Zeichenklassen-Escape: \d, \D, \w, \W, \s, \S</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Character_class">Zeichenklasse: [...], [^...]</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Character_escape">Zeichen-Escape: \n, \u{...}</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Disjunction">Disjunktion: |</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Input_boundary_assertion">Input-Bereichs-Assertion: ^, $</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Literal_character">Literalzeichen: a, b</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Lookahead_assertion">Lookahead-Assertion: (?=...), (?!...)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Lookbehind_assertion">Lookbehind Assertion: (?<=...), (?<!...)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Modifier">Modifikator: (?ims-ims:...)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Named_backreference">Benannte Rückreferenz: \k<name></a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Named_capturing_group">Named capturing group: (?<name>...)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Non-capturing_group">Nicht erfassende Gruppe: (?:...)</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Quantifier">Quantifier: *, +, ?, {n}, {n,}, {n,m}</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Unicode_character_class_escape">Unicode-Zeichenklassenescapes: \p{...}, \P{...}</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Wildcard">Wildcard: .</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Regular_expressions/Word_boundary_assertion">Wortgrenzen-Assertion: \b, \B</a></li></ol> </details> </li> <li class="toggle"> <details> <summary>Fehler</summary> <ol><li><a href="/de/docs/Web/JavaScript/Reference/Errors">JavaScript-Fehlerreferenz</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Promise_any_all_rejected">AggregateError: Kein Promise in Promise.any wurde aufgelöst</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Property_access_denied">Fehler: Zugriff verweigert auf Eigenschaft "x"</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Too_much_recursion">InternalError: zu viel Rekursion</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Not_a_valid_code_point">RangeError: argument ist kein gültiger Codepunkt</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/BigInt_division_by_zero">RangeError: BigInt-Division durch Null</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/BigInt_negative_exponent">RangeError: BigInt negative exponent</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Form_must_be_one_of">RangeError: form muss einer von 'NFC', 'NFD', 'NFKC' oder 'NFKD' sein</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Invalid_array_length">RangeError: invalid array length</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Invalid_date">RangeError: invalid date</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Precision_range">RangeError: precision liegt außerhalb des zulässigen Bereichs</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_radix">RangeError: radix muss eine ganze Zahl sein</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Resulting_string_too_large">RangeError: repeat count muss kleiner als unendlich sein</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Negative_repetition_count">RangeError: repeat count must be non-negative</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_be_converted_to_BigInt_because_it_isnt_an_integer">RangeError: x kann nicht in BigInt konvertiert werden, da es keine ganze Zahl ist</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Not_defined">ReferenceError: "x" ist nicht definiert</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Undeclared_var">ReferenceError: Zuordnung zu einer nicht deklarierten Variable "x"</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_access_lexical_declaration_before_init">ReferenceError: kann auf lexikalische Deklaration 'X' vor der Initialisierung nicht zugreifen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Deprecated_caller_or_arguments_usage">ReferenceError: veraltete Verwendung von caller oder arguments</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Super_not_called">ReferenceError: 'super' Konstruktor muss vor der Verwendung von 'this' im Konstruktor der abgeleiteten Klasse aufgerufen werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Super_called_twice">ReferenceError: super() zweimal im abgeleiteten Klassenkonstruktor aufgerufen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_strict_arguments_eval">SyntaxError: 'arguments'/'eval' können im Strict-Mode-Code nicht definiert oder zugewiesen werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Deprecated_octal_literal">SyntaxError: "0"-präfixierte Oktalliterale sind veraltet</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Strict_non_simple_params">SyntaxError: "use strict" nicht erlaubt in Funktion mit nicht einfachen Parametern</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Reserved_identifier">SyntaxError: "x" ist ein reservierter Bezeichner</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_backslash_at_end_of_pattern">SyntaxError: \ am Ende des Musters</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Invalid_for-of_initializer">SyntaxError: Eine Deklaration im Kopf einer for-of-Schleife darf keinen Initialisierer haben</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Delete_in_strict_mode">SyntaxError: Die Anwendung des 'delete'-Operators auf einen unqualifizierten Namen ist veraltet</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Arguments_not_allowed">SyntaxError: arguments ist in Feldern nicht gültig</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_await">SyntaxError: await ist nur in async Funktionen, async Generatoren und Modulen gültig</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/await_yield_in_parameter">SyntaxError: await/yield expression kann nicht im Parameter verwendet werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_use_nullish_coalescing_unparenthesized">SyntaxError: `??` kann nicht ohne Klammern innerhalb von `||` und `&&`-Ausdrücken verwendet werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_character_class_escape_in_class_range">SyntaxError: Zeichenklassen-Escape kann nicht im Klassenbereich im regulären Ausdruck verwendet werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_continue">SyntaxError: continue muss innerhalb einer Schleife sein</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_duplicate_capture_group_name">SyntaxError: doppelter Name der Erfassungsgruppe im regulären Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Duplicate_parameter">SyntaxError: doppeltes formales Argument x</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Invalid_for-in_initializer">SyntaxError: Deklarationen im Kopf einer for-in-Schleife dürfen keine Initialisierer enthalten</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Unnamed_function_statement">SyntaxError: Funktionsanweisung erfordert einen Namen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Function_label">SyntaxError: Funktionen können nicht beschriftet werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Either_be_both_static_or_non-static">SyntaxError: Getter und Setter für privaten Namen #x sollten entweder beide statisch oder nicht statisch sein</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Getter_no_arguments">SyntaxError: Getter-Funktionen dürfen keine Argumente haben</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Identifier_after_number">SyntaxError: identifier startet direkt nach einer numerischen Literal</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Illegal_character">SyntaxError: illegales Zeichen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/import_decl_module_top_level">SyntaxError: import-Deklarationen dürfen nur auf der obersten Ebene eines Moduls erscheinen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_incomplete_quantifier">SyntaxError: unvollständiger Quantifizierer im regulären Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Invalid_assignment_left-hand_side">SyntaxError: invalid assignment left-hand side</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Invalid_BigInt_syntax">SyntaxError: Ungültige BigInt-Syntax</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_capture_group_name">SyntaxError: ungültiger Name der Erfassungsgruppe im regulären Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_char_in_class">SyntaxError: ungültiges Zeichen in Klasse in regulärem Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_class_set_operation">SyntaxError: Ungültige Klassenmengenoperation im regulären Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_decimal_escape">SyntaxError: ungültiger Dezimal-Escape in regulärem Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_identity_escape">SyntaxError: ungültige Identitätsflucht in regulärem Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_named_capture_reference">SyntaxError: ungültige benannte Referenz in regulärem Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_property_name">SyntaxError: ungültiger Eigenschaftsname im regulären Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_range_in_character_class">SyntaxError: invalid range in character class</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_group">SyntaxError: invalid regexp group</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_regexp_flag">SyntaxError: invalid regular expression flag "x"</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_unicode_escape">SyntaxError: ungültiger Unicode-Escape in regulärem Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/JSON_bad_parse">SyntaxError: JSON.parse: Fehlerhaftes Parsing</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Label_not_found">SyntaxError: label not found</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Missing_colon_after_property_id">SyntaxError: missing : after property id</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Missing_parenthesis_after_argument_list">SyntaxError: missing ) after argument list</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Missing_parenthesis_after_condition">SyntaxError: missing ) after condition</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Missing_bracket_after_list">SyntaxError: missing ] after element list</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Missing_curly_after_function_body">SyntaxError: fehlende } nach Funktionskörper</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Missing_curly_after_property_list">SyntaxError: missing } after property list</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Missing_initializer_in_const">SyntaxError: missing = in const declaration</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Missing_formal_parameter">SyntaxError: missing formal parameter</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Missing_name_after_dot_operator">SyntaxError: missing name after . operator</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/No_variable_name">SyntaxError: missing variable name</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_negated_char_class_with_strings">SyntaxError: Negierte Zeichenklasse mit Strings im regulären Ausdruck</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_new_optional">SyntaxError: new-Schlüsselwort kann nicht mit einer Optionalen Kette verwendet werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_nothing_to_repeat">SyntaxError: nothing to repeat</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_numbers_out_of_order_in_quantifier">SyntaxError: numbers out of order in {} quantifier.</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Deprecated_octal_escape_sequence">SyntaxError: Oktale Escape-Sequenzen können nicht in nicht-getaggten Vorlagenliteralen oder im Strict Mode-Code verwendet werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Parameter_after_rest_parameter">SyntaxError: parameter nach Rest-Parameter</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_delete_private_fields">SyntaxError: private fields können nicht gelöscht werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Duplicate_proto">SyntaxError: Eigenschaftenname __proto__ erscheint mehr als einmal im Objektliteral</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Regex_raw_bracket">SyntaxError: Raw-Klammern sind im regulären Ausdruck mit Unicode-Flag nicht erlaubt</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Redeclared_parameter">SyntaxError: redeclaration of formal parameter "x"</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Undeclared_private_field_or_method">SyntaxError: Verweis auf nicht deklariertes privates Feld oder Methode #x</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Rest_with_default">SyntaxError: Restparameter darf keinen Standardwert haben</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_return">SyntaxError: return not in function</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Setter_one_argument">SyntaxError: Setter-Funktionen müssen ein Argument haben</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/String_literal_EOL">SyntaxError: string literal enthält einen nicht-escaped Zeilenumbruch</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_super_call">SyntaxError: super() ist nur in Konstruktoren abgeleiteter Klassen gültig</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_optional_template">SyntaxError: getaggtes Template kann nicht mit optionaler Verkettung verwendet werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Hash_outside_class">SyntaxError: Unerwartetes '#' außerhalb des Klassenkörpers verwendet</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Unexpected_token">SyntaxError: Unerwartetes Token</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_break">SyntaxError: unlabeled break muss innerhalb einer Schleife oder eines Switch sein</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Unparenthesized_unary_expr_lhs_exponentiation">SyntaxError: unverklammerter unärer Ausdruck kann nicht auf der linken Seite von '**' erscheinen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Bad_super_prop">SyntaxError: Verwendung von Super-Eigenschaften/-mitgliedern ist nur innerhalb von Methoden oder eval-Code innerhalb von Methoden gültig</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Deprecated_source_map_pragma">SyntaxError: Die Verwendung von //@ zur Angabe von sourceURL-Pragmas ist veraltet. Verwenden Sie stattdessen //#</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/is_not_iterable">TypeError: 'x' ist nicht iterierbar</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Unexpected_type">TypeError: "x" ist (nicht) "y"</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Not_a_constructor">TypeError: "x" ist kein Konstruktor</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Not_a_function">TypeError: "x" ist keine Funktion</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/No_non-null_object">TypeError: "x" ist kein nicht-null-Objekt</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Read-only">TypeError: "x" ist schreibgeschützt</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/BigInt_not_serializable">TypeError: BigInt-Wert kann nicht in JSON serialisiert werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Builtin_ctor_no_new">TypeError: Der Aufruf eines eingebauten X-Konstruktors ohne new ist verboten</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Get_set_missing_private">TypeError: kann nicht auf privates Feld oder Methode zugreifen/setzen: Objekt ist nicht die richtige Klasse</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_assign_to_property">TypeError: kann Eigenschaft „x“ auf „y“ nicht zuweisen: kein Objekt</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_convert_BigInt_to_number">TypeError: can't convert BigInt to number</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_convert_x_to_BigInt">TypeError: kann x nicht in BigInt konvertieren</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_define_property_object_not_extensible">TypeError: kann Eigenschaft "x" nicht definieren: "obj" ist nicht erweiterbar</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Non_configurable_array_element">TypeError: can't delete non-configurable array element</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_redefine_property">TypeError: kann nicht konfigurierbare Eigenschaft "x" neu definieren</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_set_prototype">TypeError: kann das Prototyp dieses Objekts nicht festlegen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cyclic_prototype">TypeError: can't set prototype: it would cause a prototype chain cycle</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/in_operator_no_object">TypeError: kann den 'in'-Operator nicht verwenden, um nach 'x' in 'y' zu suchen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Class_ctor_no_new">TypeError: Klassenkonstruktoren müssen mit 'new' aufgerufen werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cyclic_object_value">TypeError: cyclic object value</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Invalid_derived_return">TypeError: abgeleiteter Klassenkonstruktor hat einen ungültigen Wert x zurückgegeben</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Private_setter_only">TypeError: getting private setter-only property</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Private_double_initialization">TypeError: Initialisierung eines Objekts zweimal ist ein Fehler bei privaten Feldern/Methoden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/invalid_right_hand_side_instanceof_operand">TypeError: ungültiger 'instanceof'-Operand 'x'</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Array_sort_argument">TypeError: invalides Array.prototype.sort Argument</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Invalid_const_assignment">TypeError: ungültige Zuweisung zu const "x"</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Constructor_cant_be_used_directly">TypeError: Iterator/AsyncIterator-Konstruktor kann nicht direkt verwendet werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Requires_global_RegExp">TypeError: matchAll/replaceAll muss mit einem globalen RegExp aufgerufen werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/More_arguments_needed">TypeError: Mehr Argumente benötigt</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/No_properties">TypeError: null/undefined hat keine Eigenschaften</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Cant_delete">TypeError: Eigenschaft "x" ist nicht konfigurierbar und kann nicht gelöscht werden</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Reduce_of_empty_array_with_no_initial_value">TypeError: Reduce eines leeren Arrays ohne initialen Wert</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Getter_only">TypeError: Einstellung der nur-Getter-Eigenschaft "x"</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Key_not_weakly_held">TypeError: WeakSet-Schlüssel/WeakMap-Wert 'x' muss ein Objekt oder ein nicht registriertes Symbol sein</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Called_on_incompatible_type">TypeError: X.prototype.y auf inkompatiblen Typ aufgerufen</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Malformed_URI">URIError: malformed URI sequence</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Already_has_pragma">Warnung: -file- wird ein //# sourceMappingURL zugewiesen, hat aber bereits eines</a></li><li><a href="/de/docs/Web/JavaScript/Reference/Errors/Stmt_after_return">Warnung: unerreichbarer Code nach return-Anweisung</a></li></ol> </details> </li> <li class="toggle"> <details> <summary>Sonstiges</summary> <ol> <li><a href="/de/docs/Web/JavaScript/JavaScript_technologies_overview">JavaScript-Technologie (Übersicht)</a></li> <li><a href="/de/docs/Web/JavaScript/Reference/Lexical_grammar">Lexikalische Grammatik</a></li> <li><a href="/de/docs/Web/JavaScript/Reference/Iteration_protocols">Iterationsprotokolle</a></li> <li><a href="/de/docs/Web/JavaScript/Reference/Strict_mode">Strenger Modus</a></li> <li><a href="/de/docs/Web/JavaScript/Reference/Template_literals">Vorlagenliterale</a></li> <li><a href="/de/docs/Web/JavaScript/Reference/Trailing_commas">Abschließende Kommas</a></li> <li><a href="/de/docs/Web/JavaScript/Reference/Deprecated_and_obsolete_features">Veraltete Funktionen</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 diesem Artikel</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#probieren_sie_es_aus">Probieren Sie es aus</a></li><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="#beschreibung">Beschreibung</a></li><li class="document-toc-item "><a class="document-toc-link" href="#beispiele">Beispiele</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spezifikationen">Spezifikationen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser-kompatibilität">Browser-Kompatibilität</a></li><li class="document-toc-item "><a class="document-toc-link" href="#siehe_auch">Siehe auch</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="de"><header><h1>try...catch</h1><details class="baseline-indicator high"><summary><span class="indicator" role="img" aria-label="Baseline Check"></span><h2>Baseline <span class="not-bold">Widely available</span></h2><div class="browsers"><span class="engine" title="Supported in Chrome and Edge"><span class="browser chrome supported" role="img" aria-label="Chrome check"></span><span class="browser edge supported" role="img" aria-label="Edge check"></span></span><span class="engine" title="Supported in Firefox"><span class="browser firefox supported" role="img" aria-label="Firefox check"></span></span><span class="engine" title="Supported in Safari"><span class="browser safari supported" role="img" aria-label="Safari check"></span></span></div><span class="icon icon-chevron "></span></summary><div class="extra"><p>This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.</p><ul><li><a href="/de/docs/Glossary/Baseline/Compatibility" data-glean="baseline_link_learn_more" target="_blank" class="learn-more">Learn more</a></li><li><a href="#browser-kompatibilität" data-glean="baseline_link_bcd_table">See full compatibility</a></li><li><a href="https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Fde%2Fdocs%2FWeb%2FJavaScript%2FReference%2FStatements%2Ftry...catch&level=high" data-glean="baseline_link_feedback" class="feedback-link" target="_blank" rel="noreferrer">Report feedback</a></li></ul></div></details></header><div class="section-content"><p>Die <strong><code>try...catch</code></strong>-Anweisung besteht aus einem <code>try</code>-Block und entweder einem <code>catch</code>-Block, einem <code>finally</code>-Block oder beidem. Der Code im <code>try</code>-Block wird zuerst ausgeführt, und wenn er eine Ausnahme auslöst, wird der Code im <code>catch</code>-Block ausgeführt. Der Code im <code>finally</code>-Block wird immer ausgeführt, bevor der Kontrollfluss das gesamte Konstrukt verlässt.</p></div><section aria-labelledby="probieren_sie_es_aus"><h2 id="probieren_sie_es_aus"><a href="#probieren_sie_es_aus">Probieren Sie es aus</a></h2><div class="section-content"><iframe class="interactive is-js-height" height="200" src="https://interactive-examples.mdn.mozilla.net/pages/js/statement-trycatch.html" title="MDN Web Docs Interactive Example" allow="clipboard-write" loading="lazy"></iframe></div></section><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>try { tryStatements } catch (exceptionVar) { catchStatements } finally { finallyStatements } </code></pre></div> <dl> <dt id="trystatements"><a href="#trystatements"><code>tryStatements</code></a></dt> <dd> <p>Die auszuführenden Anweisungen.</p> </dd> <dt id="catchstatements"><a href="#catchstatements"><code>catchStatements</code></a></dt> <dd> <p>Anweisung, die ausgeführt wird, wenn im <code>try</code>-Block eine Ausnahme ausgelöst wird.</p> </dd> <dt id="exceptionvar"><a href="#exceptionvar"><code>exceptionVar</code></a> <span class="badge inline optional">Optional</span></dt> <dd> <p>Ein optionaler <a href="#catch-bindung">Bezeichner oder ein Muster</a>, um die abgefangene Ausnahme im zugehörigen <code>catch</code>-Block zu halten. Wenn der <code>catch</code>-Block den Wert der Ausnahme nicht verwendet, können Sie <code>exceptionVar</code> und die umgebenden Klammern weglassen.</p> </dd> <dt id="finallystatements"><a href="#finallystatements"><code>finallyStatements</code></a></dt> <dd> <p>Anweisungen, die ausgeführt werden, bevor der Kontrollfluss das <code>try...catch...finally</code>-Konstrukt verlässt. Diese Anweisungen werden unabhängig davon ausgeführt, ob eine Ausnahme ausgelöst oder abgefangen wurde.</p> </dd> </dl></div></section><section aria-labelledby="beschreibung"><h2 id="beschreibung"><a href="#beschreibung">Beschreibung</a></h2><div class="section-content"><p>Die <code>try</code>-Anweisung beginnt immer mit einem <code>try</code>-Block. Dann muss ein <code>catch</code>-Block oder ein <code>finally</code>-Block vorhanden sein. Es ist auch möglich, sowohl <code>catch</code>- als auch <code>finally</code>-Blöcke zu haben. Dies gibt uns drei Formen für die <code>try</code>-Anweisung:</p> <ul> <li><code>try...catch</code></li> <li><code>try...finally</code></li> <li><code>try...catch...finally</code></li> </ul> <p>Im Gegensatz zu anderen Konstrukten wie <a href="/de/docs/Web/JavaScript/Reference/Statements/if...else"><code>if</code></a> oder <a href="/de/docs/Web/JavaScript/Reference/Statements/for"><code>for</code></a> müssen die <code>try</code>-, <code>catch</code>- und <code>finally</code>-Blöcke <em>Blöcke</em> sein, statt einzelner Anweisungen.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js example-bad notranslate"><code>try doSomething(); // SyntaxError catch (e) console.log(e); </code></pre></div> <p>Ein <code>catch</code>-Block enthält Anweisungen, die festlegen, was zu tun ist, wenn im <code>try</code>-Block eine Ausnahme ausgelöst wird. Wenn eine beliebige Anweisung innerhalb des <code>try</code>-Blocks (oder in einer Funktion, die vom <code>try</code>-Block aus aufgerufen wird) eine Ausnahme auslöst, wird die Kontrolle sofort auf den <code>catch</code>-Block übertragen. Wenn im <code>try</code>-Block keine Ausnahme ausgelöst wird, wird der <code>catch</code>-Block übersprungen.</p> <p>Der <code>finally</code>-Block wird immer ausgeführt, bevor der Kontrollfluss das <code>try...catch...finally</code>-Konstrukt verlässt. Er wird unabhängig davon ausgeführt, ob eine Ausnahme ausgelöst oder abgefangen wurde.</p> <p>Es ist möglich, ein oder mehrere <code>try</code>-Anweisungen zu verschachteln. Wenn eine innere <code>try</code>-Anweisung keinen <code>catch</code>-Block hat, wird stattdessen der <code>catch</code>-Block der umgebenden <code>try</code>-Anweisung verwendet.</p> <p>Sie können die <code>try</code>-Anweisung auch verwenden, um JavaScript-Ausnahmen zu behandeln. Weitere Informationen zu JavaScript-Ausnahmen finden Sie im <a href="/de/docs/Web/JavaScript/Guide/Control_flow_and_error_handling#exception_handling_statements">JavaScript-Leitfaden</a>.</p></div></section><section aria-labelledby="catch-bindung"><h3 id="catch-bindung"><a href="#catch-bindung">Catch-Bindung</a></h3><div class="section-content"><p>Wenn im <code>try</code>-Block eine Ausnahme ausgelöst wird, hält <code>exceptionVar</code> (d.h. das <code>e</code> in <code>catch (e)</code>) den Ausnahme-Wert. Sie können diese <a href="/de/docs/Glossary/Binding">Bindung</a> verwenden, um Informationen über die ausgelöste Ausnahme zu erhalten. Diese <a href="/de/docs/Glossary/Binding">Bindung</a> ist nur im <a href="/de/docs/Glossary/Scope">Bereich</a> des <code>catch</code>-Blocks verfügbar.</p> <p>Es muss kein einzelner Bezeichner sein. Sie können ein <a href="/de/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment">Destructuring-Muster</a> verwenden, um mehrere Bezeichner auf einmal zuzuweisen.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>try { throw new TypeError("oops"); } catch ({ name, message }) { console.log(name); // "TypeError" console.log(message); // "oops" } </code></pre></div> <p>Die durch die <code>catch</code>-Klausel erstellten Bindungen existieren im gleichen Bereich wie der <code>catch</code>-Block, sodass alle im <code>catch</code>-Block deklarierten Variablen nicht denselben Namen wie die durch die <code>catch</code>-Klausel erstellten Bindungen haben können. (Es gibt <a href="/de/docs/Web/JavaScript/Reference/Deprecated_and_obsolete_features#statements">eine Ausnahme von dieser Regel</a>, aber sie ist ein veralteter Syntax.)</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js example-bad notranslate"><code>try { throw new TypeError("oops"); } catch ({ name, message }) { var name; // SyntaxError: Identifier 'name' has already been declared let message; // SyntaxError: Identifier 'message' has already been declared } </code></pre></div> <p>Die Ausnahmbindung ist schreibbar. Zum Beispiel möchten Sie möglicherweise den Ausnahme-Wert normalisieren, um sicherzustellen, dass es sich um ein <a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Error"><code>Error</code></a>-Objekt handelt.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>try { throw "Oops; this is not an Error object"; } catch (e) { if (!(e instanceof Error)) { e = new Error(e); } console.error(e.message); } </code></pre></div> <p>Wenn Sie den Ausnahme-Wert nicht benötigen, können Sie ihn zusammen mit den umgebenden Klammern weglassen.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>function isValidJSON(text) { try { JSON.parse(text); return true; } catch { return false; } } </code></pre></div></div></section><section aria-labelledby="der_finally-block"><h3 id="der_finally-block"><a href="#der_finally-block">Der finally-Block</a></h3><div class="section-content"><p>Der <code>finally</code>-Block enthält Anweisungen, die nach Ausführung des <code>try</code>-Blocks und der <code>catch</code>-Block(s) ausgeführt werden, jedoch vor den Anweisungen, die dem <code>try...catch...finally</code>-Block folgen. Der Kontrollfluss wird immer den <code>finally</code>-Block durchlaufen, der in einer der folgenden Weisen fortfahren kann:</p> <ul> <li>Unmittelbar nachdem der <code>try</code>-Block normal abgeschlossen wird (und keine Ausnahmen ausgelöst wurden);</li> <li>Unmittelbar nachdem der <code>catch</code>-Block normal abgeschlossen wird;</li> <li>Unmittelbar bevor die Ausführung einer Kontrollfluss-Anweisung (<code>return</code>, <code>throw</code>, <code>break</code>, <code>continue</code>) im <code>try</code>-Block oder <code>catch</code>-Block, die den Block verlassen würde, beginnt.</li> </ul> <p>Wenn von einem <code>try</code>-Block eine Ausnahme ausgelöst wird, selbst wenn kein <code>catch</code>-Block vorhanden ist, um die Ausnahme zu behandeln, wird der <code>finally</code>-Block dennoch ausgeführt, wobei die Ausnahme unmittelbar nach Abschluss des <code>finally</code>-Blocks dennoch ausgelöst wird.</p> <p>Das folgende Beispiel zeigt einen Anwendungsfall für den <code>finally</code>-Block. Der Code öffnet eine Datei und führt dann Anweisungen aus, die die Datei verwenden; der <code>finally</code>-Block stellt sicher, dass die Datei immer geschlossen wird, nachdem sie verwendet wurde, auch wenn eine Ausnahme ausgelöst wurde.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>openMyFile(); try { // tie up a resource writeMyFile(theData); } finally { closeMyFile(); // always close the resource } </code></pre></div> <p>Kontrollfluss-Anweisungen (<code>return</code>, <code>throw</code>, <code>break</code>, <code>continue</code>) im <code>finally</code>-Block werden den Abschlusswert des <code>try</code>-Blocks oder <code>catch</code>-Blocks "überdecken". In diesem Beispiel versucht der <code>try</code>-Block, 1 zurückzugeben, aber bevor er zurückgibt, wird der Kontrollfluss zuerst an den <code>finally</code>-Block übergeben, sodass der Rückgabewert des <code>finally</code>-Blocks stattdessen zurückgegeben wird.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>function doIt() { try { return 1; } finally { return 2; } } doIt(); // returns 2 </code></pre></div> <p>Es ist generell eine schlechte Idee, Kontrollfluss-Anweisungen im <code>finally</code>-Block zu haben. Verwenden Sie ihn nur für Bereinigungscode.</p></div></section><section aria-labelledby="beispiele"><h2 id="beispiele"><a href="#beispiele">Beispiele</a></h2><div class="section-content"></div></section><section aria-labelledby="unbedingter_catch-block"><h3 id="unbedingter_catch-block"><a href="#unbedingter_catch-block">Unbedingter catch-Block</a></h3><div class="section-content"><p>Wenn ein <code>catch</code>-Block verwendet wird, wird der <code>catch</code>-Block ausgeführt, wenn eine beliebige Ausnahme vom <code>try</code>-Block ausgelöst wird. Zum Beispiel, wenn die Ausnahme im folgenden Code auftritt, wird die Kontrolle auf den <code>catch</code>-Block übertragen.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>try { throw "myException"; // generates an exception } catch (e) { // statements to handle any exceptions logMyErrors(e); // pass exception object to error handler } </code></pre></div> <p>Der <code>catch</code>-Block legt einen Bezeichner (<code>e</code> im obigen Beispiel) fest, der den Wert der Ausnahme hält; dieser Wert ist nur im <a href="/de/docs/Glossary/Scope">Bereich</a> des <code>catch</code>-Blocks verfügbar.</p></div></section><section aria-labelledby="bedingte_catch-blöcke"><h3 id="bedingte_catch-blöcke"><a href="#bedingte_catch-blöcke">Bedingte catch-Blöcke</a></h3><div class="section-content"><p>Sie können "Bedingte <code>catch</code>-Blöcke" erstellen, indem Sie <code>try...catch</code>-Blöcke mit <code>if...else if...else</code>-Strukturen kombinieren, wie folgt:</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>try { myRoutine(); // may throw three types of exceptions } catch (e) { if (e instanceof TypeError) { // statements to handle TypeError exceptions } else if (e instanceof RangeError) { // statements to handle RangeError exceptions } else if (e instanceof EvalError) { // statements to handle EvalError exceptions } else { // statements to handle any unspecified exceptions logMyErrors(e); // pass exception object to error handler } } </code></pre></div> <p>Ein häufiger Anwendungsfall dafür ist, nur einen kleinen Teil erwarteter Fehler abzufangen (und zu unterdrücken) und dann den Fehler in anderen Fällen erneut auszulösen:</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>try { myRoutine(); } catch (e) { if (e instanceof RangeError) { // statements to handle this very common expected error } else { throw e; // re-throw the error unchanged } } </code></pre></div> <p>Dies kann die Syntax aus anderen Sprachen, wie Java, nachahmen:</p> <div class="code-example"><div class="example-header"><span class="language-name">java</span></div><pre class="brush: java notranslate"><code>try { myRoutine(); } catch (RangeError e) { // statements to handle this very common expected error } // Other errors are implicitly re-thrown </code></pre></div></div></section><section aria-labelledby="verschachtelte_try-blöcke"><h3 id="verschachtelte_try-blöcke"><a href="#verschachtelte_try-blöcke">Verschachtelte try-Blöcke</a></h3><div class="section-content"><p>Lassen Sie uns zunächst sehen, was mit diesem passiert:</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>try { try { throw new Error("oops"); } finally { console.log("finally"); } } catch (ex) { console.error("outer", ex.message); } // Logs: // "finally" // "outer" "oops" </code></pre></div> <p>Nun, wenn wir die Ausnahme bereits im inneren <code>try</code>-Block gefangen haben, indem wir einen <code>catch</code>-Block hinzufügen:</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>try { try { throw new Error("oops"); } catch (ex) { console.error("inner", ex.message); } finally { console.log("finally"); } } catch (ex) { console.error("outer", ex.message); } // Logs: // "inner" "oops" // "finally" </code></pre></div> <p>Und jetzt, lassen Sie uns den Fehler erneut auslösen.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>try { try { throw new Error("oops"); } catch (ex) { console.error("inner", ex.message); throw ex; } finally { console.log("finally"); } } catch (ex) { console.error("outer", ex.message); } // Logs: // "inner" "oops" // "finally" // "outer" "oops" </code></pre></div> <p>Jede gegebene Ausnahme wird nur einmal vom nächstgelegenen, umgebenden <code>catch</code>-Block abgefangen, es sei denn, sie wird erneut ausgelöst. Natürlich werden alle neuen Ausnahmen, die im "inneren" Block ausgelöst werden (weil der Code im <code>catch</code>-Block möglicherweise etwas tut, das eine Ausnahme auslöst), vom "äußeren" Block abgefangen.</p></div></section><section aria-labelledby="rückgabe_aus_einem_finally-block"><h3 id="rückgabe_aus_einem_finally-block"><a href="#rückgabe_aus_einem_finally-block">Rückgabe aus einem finally-Block</a></h3><div class="section-content"><p>Wenn der <code>finally</code>-Block einen Wert zurückgibt, wird dieser Wert zum Rückgabewert der gesamten <code>try-catch-finally</code>-Anweisung, unabhängig von <code>return</code>-Anweisungen in den <code>try</code>- und <code>catch</code>-Blöcken. Dies gilt auch für Ausnahmen, die innerhalb des <code>catch</code>-Blocks ausgelöst werden:</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>(() => { try { try { throw new Error("oops"); } catch (ex) { console.error("inner", ex.message); throw ex; } finally { console.log("finally"); return; } } catch (ex) { console.error("outer", ex.message); } })(); // Logs: // "inner" "oops" // "finally" </code></pre></div> <p>Das äußere "oops" wird nicht ausgelöst, wegen der Rückgabe im <code>finally</code>-Block. Gleiches würde für jeden zurückgegebenen Wert aus dem <code>catch</code>-Block gelten.</p></div></section><h2 id="spezifikationen"><a href="#spezifikationen">Spezifikationen</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-try-statement">ECMAScript Language Specification <br/><small># sec-try-statement</small></a></td></tr></tbody></table><h2 id="browser-kompatibilität"><a href="#browser-kompatibilität">Browser-Kompatibilität</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="siehe_auch"><h2 id="siehe_auch"><a href="#siehe_auch">Siehe auch</a></h2><div class="section-content"><ul> <li><a href="/de/docs/Web/JavaScript/Reference/Global_Objects/Error"><code>Error</code></a></li> <li><a href="/de/docs/Web/JavaScript/Reference/Statements/throw"><code>throw</code></a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" fill="#fff"><path d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 23.86c5.819 9.579 9.269 20.318 10.083 31.385a69.85 69.85 0 0 1-5.387 32.44c-4.358 10.272-11.115 19.443-19.747 26.801-8.632 7.359-18.908 12.709-30.034 15.637l-6.17-21.698c7.666-2.017 14.746-5.703 20.694-10.773 5.948-5.071 10.603-11.389 13.606-18.467a48.14 48.14 0 0 0 3.712-22.352c-.561-7.625-2.938-15.025-6.948-21.625s-9.544-12.226-16.175-16.44-14.181-6.904-22.065-7.863a53.75 53.75 0 0 0-23.405 2.336c-7.513 2.495-14.327 6.62-19.918 12.053z"></path></mask><path stroke="url(#a)" stroke-dasharray="6, 6" stroke-width="2" d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 23.86c5.819 9.579 9.269 20.318 10.083 31.385a69.85 69.85 0 0 1-5.387 32.44c-4.358 10.272-11.115 19.443-19.747 26.801-8.632 7.359-18.908 12.709-30.034 15.637l-6.17-21.698c7.666-2.017 14.746-5.703 20.694-10.773 5.948-5.071 10.603-11.389 13.606-18.467a48.14 48.14 0 0 0 3.712-22.352c-.561-7.625-2.938-15.025-6.948-21.625s-9.544-12.226-16.175-16.44-14.181-6.904-22.065-7.863a53.75 53.75 0 0 0-23.405 2.336c-7.513 2.495-14.327 6.62-19.918 12.053z" mask="url(#b)" style="stroke:url(#a)" transform="translate(-63.992 -25.587)"></path><ellipse cx="8.066" cy="111.597" fill="var(--background-tertiary)" rx="53.677" ry="53.699" transform="matrix(.71707 -.697 .7243 .6895 0 0)"></ellipse><g clip-path="url(#c)" transform="translate(-63.992 -25.587)"><path fill="#9abff5" d="m144.256 137.379 32.906 12.434a4.41 4.41 0 0 1 2.559 5.667l-9.326 24.679a4.41 4.41 0 0 1-5.667 2.559l-8.226-3.108-2.332 6.17c-.466 1.233-.375 1.883-1.609 1.417l-2.253-.527c-.411-.155-.95-.594-1.206-1.161l-4.734-10.484-12.545-4.741a4.41 4.41 0 0 1-2.559-5.667l9.325-24.679a4.41 4.41 0 0 1 5.667-2.559m9.961 29.617 8.227 3.108 3.264-8.638-.498-6.768-4.113-1.555.548 7.258-4.319-1.632zm-12.339-4.663 8.226 3.108 3.264-8.637-.498-6.769-4.113-1.554.548 7.257-4.319-1.632z"></path></g><g clip-path="url(#d)" transform="translate(-63.992 -25.587)"><path fill="#81b0f3" d="M135.35 60.136 86.67 41.654c-3.346-1.27-7.124.428-8.394 3.775L64.414 81.938c-1.27 3.347.428 7.125 3.774 8.395l12.17 4.62-3.465 9.128c-.693 1.826-1.432 2.457.394 3.15l3.014 1.625c.609.231 1.637.274 2.477-.104l15.53-6.983 18.56 7.047c3.346 1.27 7.124-.428 8.395-3.775l13.862-36.51c1.27-3.346-.428-7.124-3.775-8.395M95.261 83.207l-12.17-4.62 4.852-12.779 7.19-7.017 6.085 2.31-7.725 7.51 6.389 2.426zm18.255 6.93-12.17-4.62 4.852-12.778 7.189-7.017 6.085 2.31-7.725 7.51 6.39 2.426z"></path></g><defs><clipPath id="c"><path fill="#fff" d="m198.638 146.586-65.056-24.583-24.583 65.057 65.056 24.582z"></path></clipPath><clipPath id="d"><path fill="#fff" d="m66.438 14.055 96.242 36.54-36.54 96.243-96.243-36.54z"></path></clipPath><linearGradient id="a" x1="97.203" x2="199.995" y1="47.04" y2="152.793" gradientUnits="userSpaceOnUse"><stop stop-color="#086DFC"></stop><stop offset="0.246" stop-color="#2C81FA"></stop><stop offset="0.516" stop-color="#5497F8"></stop><stop offset="0.821" stop-color="#80B0F6"></stop><stop offset="1" stop-color="#9ABFF5"></stop></linearGradient></defs></svg></div><h2>MDN-Feedback-Box</h2><fieldset class="feedback"><label>War diese Übersetzung hilfreich?</label><div class="button-container"><button type="button" class="button primary has-icon yes"><span class="button-wrap"><span class="icon icon-thumbs-up "></span>Ja</span></button><button type="button" class="button primary has-icon no"><span class="button-wrap"><span class="icon icon-thumbs-down "></span>Nein</span></button></div></fieldset><p class="last-modified-date">Diese Seite wurde automatisch aus dem Englischen übersetzt.</p><div id="on-github" class="on-github"><a href="https://github.com/mdn/translated-content-de/blob/main/files/de/web/javascript/reference/statements/try...catch/index.md?plain=1" title="Folder: de/web/javascript/reference/statements/try...catch (Opens in a new tab)" target="_blank" rel="noopener noreferrer">Übersetzung auf GitHub anzeigen</a> • <a href="https://github.com/mdn/translated-content-de/issues/new?template=page-report-de.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fde%2Fdocs%2FWeb%2FJavaScript%2FReference%2FStatements%2Ftry...catch&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60de%2Fweb%2Fjavascript%2Freference%2Fstatements%2Ftry...catch%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fde%2Fdocs%2FWeb%2FJavaScript%2FReference%2FStatements%2Ftry...catch%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Ftranslated-content-de%2Fblob%2Fmain%2Ffiles%2Fde%2Fweb%2Fjavascript%2Freference%2Fstatements%2Ftry...catch%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Ftranslated-content-de%2Fcommit%2Faebcbfc2355fccddc193e6b25ba720935bf90172%0A*+Document+last+modified%3A+2022-08-14T03%3A39%3A57.000Z%0A%0A%3C%2Fdetails%3E" title="This will take you to GitHub to file a new issue." target="_blank" rel="noopener noreferrer">Fehler mit dieser Übersetzung melden</a></div></div></aside></main></div></div><footer id="nav-footer" class="page-footer"><div class="page-footer-grid"><div class="page-footer-logo-col"><a href="/" class="mdn-footer-logo" aria-label="MDN homepage"><svg width="48" height="17" viewBox="0 0 48 17" fill="none" xmlns="http://www.w3.org/2000/svg"><title id="mdn-footer-logo-svg">MDN logo</title><path d="M20.04 16.512H15.504V10.416C15.504 9.488 15.344 8.824 15.024 8.424C14.72 8.024 14.264 7.824 13.656 7.824C12.92 7.824 12.384 8.064 12.048 8.544C11.728 9.024 11.568 9.64 11.568 10.392V14.184H13.008V16.512H8.472V10.416C8.472 9.488 8.312 8.824 7.992 8.424C7.688 8.024 7.232 7.824 6.624 7.824C5.872 7.824 5.336 8.064 5.016 8.544C4.696 9.024 4.536 9.64 4.536 10.392V14.184H6.6V16.512H0V14.184H1.44V8.04H0.024V5.688H4.536V7.32C5.224 6.088 6.32 5.472 7.824 5.472C8.608 5.472 9.328 5.664 9.984 6.048C10.64 6.432 11.096 7.016 11.352 7.8C11.992 6.248 13.168 5.472 14.88 5.472C15.856 5.472 16.72 5.776 17.472 6.384C18.224 6.992 18.6 7.936 18.6 9.216V14.184H20.04V16.512Z" fill="currentColor"></path><path d="M33.6714 16.512H29.1354V14.496C28.8314 15.12 28.3834 15.656 27.7914 16.104C27.1994 16.536 26.4154 16.752 25.4394 16.752C24.0154 16.752 22.8954 16.264 22.0794 15.288C21.2634 14.312 20.8554 12.984 20.8554 11.304C20.8554 9.688 21.2554 8.312 22.0554 7.176C22.8554 6.04 24.0634 5.472 25.6794 5.472C26.5594 5.472 27.2794 5.648 27.8394 6C28.3994 6.352 28.8314 6.8 29.1354 7.344V2.352H26.9754V0H32.2314V14.184H33.6714V16.512ZM29.1354 11.04V10.776C29.1354 9.88 28.8954 9.184 28.4154 8.688C27.9514 8.176 27.3674 7.92 26.6634 7.92C25.9754 7.92 25.3674 8.176 24.8394 8.688C24.3274 9.2 24.0714 10.008 24.0714 11.112C24.0714 12.152 24.3114 12.944 24.7914 13.488C25.2714 14.032 25.8394 14.304 26.4954 14.304C27.3114 14.304 27.9514 13.96 28.4154 13.272C28.8954 12.584 29.1354 11.84 29.1354 11.04Z" fill="currentColor"></path><path d="M47.9589 16.512H41.9829V14.184H43.4229V10.416C43.4229 9.488 43.2629 8.824 42.9429 8.424C42.6389 8.024 42.1829 7.824 41.5749 7.824C40.8389 7.824 40.2709 8.056 39.8709 8.52C39.4709 8.968 39.2629 9.56 39.2469 10.296V14.184H40.6869V16.512H34.7109V14.184H36.1509V8.04H34.5909V5.688H39.2469V7.344C39.9669 6.096 41.1269 5.472 42.7269 5.472C43.7509 5.472 44.6389 5.776 45.3909 6.384C46.1429 6.992 46.5189 7.936 46.5189 9.216V14.184H47.9589V16.512Z" fill="currentColor"></path></svg></a><p>Your blueprint for a better internet.</p><ul class="social-icons"><li><a href="https://mozilla.social/@mdn" target="_blank" rel="me noopener noreferrer"><span class="icon icon-mastodon"></span><span class="visually-hidden">MDN on Mastodon</span></a></li><li><a href="https://twitter.com/mozdevnet" target="_blank" rel="noopener noreferrer"><span class="icon icon-twitter-x"></span><span class="visually-hidden">MDN on X (formerly Twitter)</span></a></li><li><a href="https://github.com/mdn/" target="_blank" rel="noopener noreferrer"><span class="icon icon-github-mark-small"></span><span class="visually-hidden">MDN on GitHub</span></a></li><li><a href="/en-US/blog/rss.xml" target="_blank"><span class="icon icon-feed"></span><span class="visually-hidden">MDN Blog RSS Feed</span></a></li></ul></div><div class="page-footer-nav-col-1"><h2 class="footer-nav-heading">MDN</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a href="/en-US/about">About</a></li><li class="footer-nav-item"><a href="/en-US/blog/">Blog</a></li><li class="footer-nav-item"><a href="https://www.mozilla.org/en-US/careers/listings/?team=ProdOps" target="_blank" rel="noopener noreferrer">Careers</a></li><li class="footer-nav-item"><a href="/en-US/advertising">Advertise with us</a></li></ul></div><div class="page-footer-nav-col-2"><h2 class="footer-nav-heading">Support</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a class="footer-nav-link" href="https://support.mozilla.org/products/mdn-plus">Product help</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/de/docs/MDN/Community/Issues">Report an issue</a></li></ul></div><div class="page-footer-nav-col-3"><h2 class="footer-nav-heading">Our communities</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a class="footer-nav-link" href="/en-US/community">MDN Community</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="https://discourse.mozilla.org/c/mdn/236" target="_blank" rel="noopener noreferrer">MDN Forum</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/discord" target="_blank" rel="noopener noreferrer">MDN Chat</a></li></ul></div><div class="page-footer-nav-col-4"><h2 class="footer-nav-heading">Developers</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a class="footer-nav-link" href="/de/docs/Web">Web Technologies</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/de/docs/Learn">Learn Web Development</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/de/plus">MDN Plus</a></li><li class="footer-nav-item"><a href="https://hacks.mozilla.org/" target="_blank" rel="noopener noreferrer">Hacks Blog</a></li></ul></div><div class="page-footer-moz"><a href="https://www.mozilla.org/" class="footer-moz-logo-link" target="_blank" rel="noopener noreferrer"><svg width="112" height="32" fill="none" xmlns="http://www.w3.org/2000/svg"><title id="mozilla-footer-logo-svg">Mozilla logo</title><path d="M41.753 14.218c-2.048 0-3.324 1.522-3.324 4.157 0 2.423 1.119 4.286 3.29 4.286 2.082 0 3.447-1.678 3.447-4.347 0-2.826-1.522-4.096-3.413-4.096Zm54.89 7.044c0 .901.437 1.618 1.645 1.618 1.427 0 2.949-1.024 3.044-3.352-.649-.095-1.365-.185-2.02-.185-1.426-.005-2.668.397-2.668 1.92Z" fill="currentColor"></path><path d="M0 0v32h111.908V0H0Zm32.56 25.426h-5.87v-7.884c0-2.423-.806-3.352-2.39-3.352-1.924 0-2.702 1.365-2.702 3.324v4.868h1.864v3.044h-5.864v-7.884c0-2.423-.806-3.352-2.39-3.352-1.924 0-2.702 1.365-2.702 3.324v4.868h2.669v3.044H6.642v-3.044h1.863v-7.918H6.642V11.42h5.864v2.11c.839-1.489 2.3-2.39 4.252-2.39 2.02 0 3.878.963 4.566 3.01.778-1.862 2.361-3.01 4.566-3.01 2.512 0 4.812 1.522 4.812 4.84v6.402h1.863v3.044h-.005Zm9.036.307c-4.314 0-7.296-2.635-7.296-7.106 0-4.096 2.484-7.481 7.514-7.481s7.481 3.38 7.481 7.29c0 4.472-3.228 7.297-7.699 7.297Zm22.578-.307H51.942l-.403-2.11 7.7-8.846h-4.376l-.621 2.17-2.888-.313.498-4.907h12.294l.313 2.11-7.767 8.852h4.533l.654-2.172 3.167.308-.872 4.908Zm7.99 0h-4.191v-5.03h4.19v5.03Zm0-8.976h-4.191v-5.03h4.19v5.03Zm2.618 8.976 6.054-21.358h3.945l-6.054 21.358h-3.945Zm8.136 0 6.048-21.358h3.945l-6.054 21.358h-3.939Zm21.486.307c-1.863 0-2.887-1.085-3.072-2.792-.805 1.427-2.232 2.792-4.498 2.792-2.02 0-4.314-1.085-4.314-4.006 0-3.447 3.323-4.253 6.518-4.253.778 0 1.584.034 2.3.124v-.465c0-1.427-.034-3.133-2.3-3.133-.84 0-1.488.061-2.143.402l-.453 1.578-3.195-.34.549-3.224c2.45-.996 3.692-1.27 5.992-1.27 3.01 0 5.556 1.55 5.556 4.75v6.083c0 .805.314 1.085.963 1.085.184 0 .375-.034.587-.095l.034 2.11a5.432 5.432 0 0 1-2.524.654Z" fill="currentColor"></path></svg></a><ul class="footer-moz-list"><li class="footer-moz-item"><a href="https://www.mozilla.org/privacy/websites/" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Website Privacy Notice</a></li><li class="footer-moz-item"><a href="https://www.mozilla.org/privacy/websites/#cookies" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Cookies</a></li><li class="footer-moz-item"><a href="https://www.mozilla.org/about/legal/terms/mozilla" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Legal</a></li><li class="footer-moz-item"><a href="https://www.mozilla.org/about/governance/policies/participation/" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Community Participation Guidelines</a></li></ul></div><div class="page-footer-legal"><p id="license" class="page-footer-legal-text">Visit <a href="https://www.mozilla.org" target="_blank" rel="noopener noreferrer">Mozilla Corporation’s</a> not-for-profit parent, the <a target="_blank" rel="noopener noreferrer" 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="/de/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/de/docs/Web/JavaScript/Reference/Statements/try...catch","doc":{"isMarkdown":true,"isTranslated":true,"isActive":true,"flaws":{},"title":"try...catch","mdn_url":"/de/docs/Web/JavaScript/Reference/Statements/try...catch","locale":"de","native":"Deutsch","browserCompat":["javascript.statements.try_catch"],"baseline":{"baseline":"high","baseline_high_date":"2018-01-29","baseline_low_date":"2015-07-29","support":{"chrome":"5","chrome_android":"18","edge":"12","firefox":"1","firefox_android":"4","safari":"5","safari_ios":"4.2"}},"sidebarHTML":"\n <ol>\n <li class=\"section\"><a href=\"/de/docs/Web/JavaScript\">JavaScript</a></li>\n <li class=\"section\">Tutorials</li>\n <li class=\"toggle\">\n <details>\n <summary>Komplette Anfänger</summary>\n <ol>\n <li><a href=\"/de/docs/Learn/Getting_started_with_the_web/JavaScript_basics\">JavaScript-Grundlagen</a></li>\n <li><a href=\"/de/docs/Learn/JavaScript/First_steps\">Erste Schritte in JavaScript</a></li>\n <li><a href=\"/de/docs/Learn/JavaScript/Building_blocks\">JavaScript-Bausteine</a></li>\n <li><a href=\"/de/docs/Learn/JavaScript/Objects\">Einführung in JavaScript-Objekte</a></li>\n </ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>JavaScript-Handbuch</summary>\n <ol>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Introduction\">Einführung</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Grammar_and_types\">Grammatik und Typen</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Control_flow_and_error_handling\">Steuerfluss und Fehlerbehandlung</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Loops_and_iteration\">Schleifen und Iteration</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Functions\">Funktionen</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Expressions_and_operators\">Ausdrücke und Operatoren</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Numbers_and_dates\">Zahlen und Daten</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Text_formatting\">Textformatierung</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Regular_expressions\">Reguläre Ausdrücke</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Indexed_collections\">Indexierte Sammlungen</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Keyed_collections\">Gekennzeichnete Sammlungen</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Working_with_objects\">Arbeiten mit Objekten</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Using_classes\">Verwendung von Klassen</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Using_promises\">Verwendung von Promises</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Typed_arrays\">Typisierte Arrays in JavaScript</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Iterators_and_generators\">Iteratoren und Generatoren</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Meta_programming\">Metaprogrammierung</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Guide/Modules\">JavaScript-Module</a></li>\n </ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>Mittelstufe</summary>\n <ol>\n <li><a href=\"/de/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks\">Client-seitige JavaScript-Frameworks</a></li>\n <li><a href=\"/de/docs/Learn/JavaScript/Client-side_web_APIs\">Client-seitige Web-APIs</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Language_overview\">Sprachübersicht</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Data_structures\">JavaScript-Datenstrukturen</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Equality_comparisons_and_sameness\">Gleichheitsvergleiche und Gleichheit</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Enumerability_and_ownership_of_properties\">Aufzählbarkeit und Eigentum von Eigenschaften</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Closures\">Closures</a></li>\n </ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>Fortgeschritten</summary>\n <ol>\n <li><a href=\"/de/docs/Web/JavaScript/Inheritance_and_the_prototype_chain\">Vererbung und die Prototypenkette</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Memory_management\">Speicherverwaltung</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Event_loop\">Konkurrenzmodell und Ereignisschleife</a></li>\n </ol>\n </details>\n </li>\n <li class=\"section\"><a href=\"/de/docs/Web/JavaScript/Reference\">Referenzen</a></li>\n <li class=\"toggle\">\n <details>\n <summary>Eingebaute Objekte</summary>\n <ol><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects\">Standard eingebaute Objekte</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/AggregateError\">AggregateError</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Array\">Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer\">ArrayBuffer</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/AsyncFunction\">AsyncFunction</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/AsyncGenerator\">AsyncGenerator</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/AsyncGeneratorFunction\">AsyncGeneratorFunction</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/AsyncIterator\">AsyncIterator</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Atomics\">Atomics</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/BigInt\">BigInt</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/BigInt64Array\">BigInt64Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/BigUint64Array\">BigUint64Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Boolean\">Boolean</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/DataView\">DataView</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Date\">Date</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/decodeURI\">decodeURI()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent\">decodeURIComponent()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/encodeURI\">encodeURI()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent\">encodeURIComponent()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Error\">Error</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/escape\">escape()</a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/eval\">eval()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/EvalError\">EvalError</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/FinalizationRegistry\">FinalizationRegistry</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Float16Array\">Float16Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Float32Array\">Float32Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Float64Array\">Float64Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Function\">Function</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Generator\">Generator</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/GeneratorFunction\">GeneratorFunction</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/globalThis\">globalThis</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Infinity\">Infinity</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Int16Array\">Int16Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Int32Array\">Int32Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Int8Array\">Int8Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/InternalError\">InternalError</a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Intl\">Intl</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/isFinite\">isFinite()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/isNaN\">isNaN()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Iterator\">Iterator</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/JSON\">JSON</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Map\">Map</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Math\">Math</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/NaN\">NaN</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Number\">Number</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Object\">Object</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/parseFloat\">parseFloat()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/parseInt\">parseInt()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Promise\">Promise</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Proxy\">Proxy</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/RangeError\">RangeError</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError\">ReferenceError</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Reflect\">Reflect</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/RegExp\">RegExp</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Set\">Set</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer\">SharedArrayBuffer</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/String\">String</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Symbol\">Symbol</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError\">SyntaxError</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/TypedArray\">TypedArray</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/TypeError\">TypeError</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Uint16Array\">Uint16Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Uint32Array\">Uint32Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array\">Uint8Array</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray\">Uint8ClampedArray</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/undefined\">undefined</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/unescape\">unescape()</a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/URIError\">URIError</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/WeakMap\">WeakMap</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/WeakRef\">WeakRef</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/WeakSet\">WeakSet</a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>Ausdrücke und Operatoren</summary>\n <ol><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators\">Ausdrücke und Operatoren</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Addition\">Addition (+)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Addition_assignment\">Addition Assignment (+=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Assignment\">Zuweisung (=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/async_function\">async function expression</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/async_function*\">async function* Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/await\">await</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Bitwise_AND\">Bitweises UND (&)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Bitwise_AND_assignment\">Bitweise UND-Zuweisung (&=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Bitwise_NOT\">Bitweise NOT (~)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Bitwise_OR\">Bitweises Oder (|)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Bitwise_OR_assignment\">Bitweises OR-Zuweisung (|=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR\">Bitweises XOR (^)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR_assignment\">Bitweises XOR-Zuweisung (^=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/class\">Klassenausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Comma_operator\">Komma-Operator (,)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Conditional_operator\">Bedingungsoperator (ternärer Operator)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Decrement\">Decrement (--)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/delete\">delete</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment\">Destructuring-Zuweisung</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Division\">Division (/)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Division_assignment\">Division assignment (/=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Equality\">Gleichheit (==)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Exponentiation\">Potenzierung (**)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Exponentiation_assignment\">Exponentiation-Zuweisung (**=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/function\">function expression</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/function*\">function* Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Greater_than\">Greater than (>)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Greater_than_or_equal\">Greater than or equal (>=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Grouping\">Gruppierungsoperator ( )</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/import.meta\">import.meta</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/import\">import()</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/in\">in</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Increment\">Increment (++)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Inequality\">Inequality (!=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/instanceof\">instanceof</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Left_shift\">Left shift (<<)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Left_shift_assignment\">Left shift assignment (<<=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Less_than\">Less than (<)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Less_than_or_equal\">Less than or equal (<=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Logical_AND\">Logisches UND (&&)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Logical_AND_assignment\">Logical AND assignment (&&=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Logical_NOT\">Logisches NICHT (!)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Logical_OR\">Logical OR (||)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Logical_OR_assignment\">Logische ODER-Zuweisung (||=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Multiplication\">Multiplication (*)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Multiplication_assignment\">Multiplikationszuweisung (*=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/new\">new</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/new.target\">new.target</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/null\">null</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing_assignment\">Nullish coalescing assignment (??=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing\">Nullish coalescing-Operator (??)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Object_initializer\">Object initializer</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Operator_precedence\">Operatorpriorität</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Optional_chaining\">Optional Chaining (?.)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Property_accessors\">Property accessors</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Remainder\">Remainder (%)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Remainder_assignment\">Remainder-Zuweisung (%=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Right_shift\">Rechtsschiebung (>>)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Right_shift_assignment\">Right shift assignment (>>=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Spread_syntax\">Spread-Syntax (...)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Strict_equality\">Strikte Gleichheit (===)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Strict_inequality\">Strikte Ungleichheit (!==)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Subtraction\">Subtraction (-)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Subtraction_assignment\">Subtraction assignment (-=)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/super\">super</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/this\">this</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/typeof\">typeof</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Unary_negation\">Unäre Negation (-)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Unary_plus\">Unary plus (+)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift\">Unsigned right shift (>>>)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift_assignment\">Unsigned right shift assignment (`>>>=`)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/void\">void operator</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/yield\">yield</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Operators/yield*\">yield*</a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details open=\"\">\n <summary>Anweisungen und Deklarationen</summary>\n <ol><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements\">Statements und Deklarationen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/async_function\">async function</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/async_function*\">async function*</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/block\">Block Statement</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/break\">break</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/class\">class</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/const\">const</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/continue\">continue</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/debugger\">debugger</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/do...while\">do...while</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/Empty\">Empty Statement</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/export\">export</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/Expression_statement\">Expression statement</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/for\">for</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/for-await...of\">for await...of</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/for...in\">for...in</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/for...of\">for...of</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/function\">function</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/function*\">function*</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/if...else\">if...else</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/import\">import</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/label\">Labelierte Anweisung</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/let\">let</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/return\">return</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/switch\">switch</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/throw\">throw</a></li><li><em><a href=\"/de/docs/Web/JavaScript/Reference/Statements/try...catch\" aria-current=\"page\">try...catch</a></em></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/var\">var</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/while\">while</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/with\">with</a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>Funktionen</summary>\n <ol><li><a href=\"/de/docs/Web/JavaScript/Reference/Functions\">Functions</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Functions/Arrow_functions\">Pfeilfunktionen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Functions/Default_parameters\">Default parameters</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Functions/get\">get</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Functions/Method_definitions\">Methodendefinitionen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Functions/rest_parameters\">Rest-Parameter</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Functions/set\">set</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Functions/arguments\">Das arguments Objekt</a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>Klassen</summary>\n <ol><li><a href=\"/de/docs/Web/JavaScript/Reference/Classes\">Klassen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Classes/constructor\">constructor</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Classes/extends\">extends</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Classes/Private_properties\">Private properties</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Classes/Public_class_fields\">Public class fields</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Classes/static\">static</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Classes/Static_initialization_blocks\">Statische Initialisierungsblöcke</a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>Reguläre Ausdrücke</summary>\n <ol><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions\">Regular expressions</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Backreference\">Backreference: \\1, \\2</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Capturing_group\">Capturing group: (...)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Character_class_escape\">Zeichenklassen-Escape: \\d, \\D, \\w, \\W, \\s, \\S</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Character_class\">Zeichenklasse: [...], [^...]</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Character_escape\">Zeichen-Escape: \\n, \\u{...}</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Disjunction\">Disjunktion: |</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Input_boundary_assertion\">Input-Bereichs-Assertion: ^, $</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Literal_character\">Literalzeichen: a, b</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Lookahead_assertion\">Lookahead-Assertion: (?=...), (?!...)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Lookbehind_assertion\">Lookbehind Assertion: (?<=...), (?<!...)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Modifier\">Modifikator: (?ims-ims:...)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Named_backreference\">Benannte Rückreferenz: \\k<name></a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Named_capturing_group\">Named capturing group: (?<name>...)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Non-capturing_group\">Nicht erfassende Gruppe: (?:...)</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Quantifier\">Quantifier: *, +, ?, {n}, {n,}, {n,m}</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Unicode_character_class_escape\">Unicode-Zeichenklassenescapes: \\p{...}, \\P{...}</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Wildcard\">Wildcard: .</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Regular_expressions/Word_boundary_assertion\">Wortgrenzen-Assertion: \\b, \\B</a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>Fehler</summary>\n <ol><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors\">JavaScript-Fehlerreferenz</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Promise_any_all_rejected\">AggregateError: Kein Promise in Promise.any wurde aufgelöst</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Property_access_denied\">Fehler: Zugriff verweigert auf Eigenschaft \"x\"</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Too_much_recursion\">InternalError: zu viel Rekursion</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Not_a_valid_code_point\">RangeError: argument ist kein gültiger Codepunkt</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/BigInt_division_by_zero\">RangeError: BigInt-Division durch Null</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/BigInt_negative_exponent\">RangeError: BigInt negative exponent</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Form_must_be_one_of\">RangeError: form muss einer von 'NFC', 'NFD', 'NFKC' oder 'NFKD' sein</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Invalid_array_length\">RangeError: invalid array length</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Invalid_date\">RangeError: invalid date</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Precision_range\">RangeError: precision liegt außerhalb des zulässigen Bereichs</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_radix\">RangeError: radix muss eine ganze Zahl sein</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Resulting_string_too_large\">RangeError: repeat count muss kleiner als unendlich sein</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Negative_repetition_count\">RangeError: repeat count must be non-negative</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_be_converted_to_BigInt_because_it_isnt_an_integer\">RangeError: x kann nicht in BigInt konvertiert werden, da es keine ganze Zahl ist</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Not_defined\">ReferenceError: \"x\" ist nicht definiert</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Undeclared_var\">ReferenceError: Zuordnung zu einer nicht deklarierten Variable \"x\"</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_access_lexical_declaration_before_init\">ReferenceError: kann auf lexikalische Deklaration 'X' vor der Initialisierung nicht zugreifen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Deprecated_caller_or_arguments_usage\">ReferenceError: veraltete Verwendung von caller oder arguments</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Super_not_called\">ReferenceError: 'super' Konstruktor muss vor der Verwendung von 'this' im Konstruktor der abgeleiteten Klasse aufgerufen werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Super_called_twice\">ReferenceError: super() zweimal im abgeleiteten Klassenkonstruktor aufgerufen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_strict_arguments_eval\">SyntaxError: 'arguments'/'eval' können im Strict-Mode-Code nicht definiert oder zugewiesen werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Deprecated_octal_literal\">SyntaxError: \"0\"-präfixierte Oktalliterale sind veraltet</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Strict_non_simple_params\">SyntaxError: \"use strict\" nicht erlaubt in Funktion mit nicht einfachen Parametern</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Reserved_identifier\">SyntaxError: \"x\" ist ein reservierter Bezeichner</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_backslash_at_end_of_pattern\">SyntaxError: \\ am Ende des Musters</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Invalid_for-of_initializer\">SyntaxError: Eine Deklaration im Kopf einer for-of-Schleife darf keinen Initialisierer haben</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Delete_in_strict_mode\">SyntaxError: Die Anwendung des 'delete'-Operators auf einen unqualifizierten Namen ist veraltet</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Arguments_not_allowed\">SyntaxError: arguments ist in Feldern nicht gültig</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_await\">SyntaxError: await ist nur in async Funktionen, async Generatoren und Modulen gültig</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/await_yield_in_parameter\">SyntaxError: await/yield expression kann nicht im Parameter verwendet werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_use_nullish_coalescing_unparenthesized\">SyntaxError: `??` kann nicht ohne Klammern innerhalb von `||` und `&&`-Ausdrücken verwendet werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_character_class_escape_in_class_range\">SyntaxError: Zeichenklassen-Escape kann nicht im Klassenbereich im regulären Ausdruck verwendet werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_continue\">SyntaxError: continue muss innerhalb einer Schleife sein</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_duplicate_capture_group_name\">SyntaxError: doppelter Name der Erfassungsgruppe im regulären Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Duplicate_parameter\">SyntaxError: doppeltes formales Argument x</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Invalid_for-in_initializer\">SyntaxError: Deklarationen im Kopf einer for-in-Schleife dürfen keine Initialisierer enthalten</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Unnamed_function_statement\">SyntaxError: Funktionsanweisung erfordert einen Namen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Function_label\">SyntaxError: Funktionen können nicht beschriftet werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Either_be_both_static_or_non-static\">SyntaxError: Getter und Setter für privaten Namen #x sollten entweder beide statisch oder nicht statisch sein</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Getter_no_arguments\">SyntaxError: Getter-Funktionen dürfen keine Argumente haben</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Identifier_after_number\">SyntaxError: identifier startet direkt nach einer numerischen Literal</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Illegal_character\">SyntaxError: illegales Zeichen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/import_decl_module_top_level\">SyntaxError: import-Deklarationen dürfen nur auf der obersten Ebene eines Moduls erscheinen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_incomplete_quantifier\">SyntaxError: unvollständiger Quantifizierer im regulären Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Invalid_assignment_left-hand_side\">SyntaxError: invalid assignment left-hand side</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Invalid_BigInt_syntax\">SyntaxError: Ungültige BigInt-Syntax</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_capture_group_name\">SyntaxError: ungültiger Name der Erfassungsgruppe im regulären Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_char_in_class\">SyntaxError: ungültiges Zeichen in Klasse in regulärem Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_class_set_operation\">SyntaxError: Ungültige Klassenmengenoperation im regulären Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_decimal_escape\">SyntaxError: ungültiger Dezimal-Escape in regulärem Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_identity_escape\">SyntaxError: ungültige Identitätsflucht in regulärem Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_named_capture_reference\">SyntaxError: ungültige benannte Referenz in regulärem Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_property_name\">SyntaxError: ungültiger Eigenschaftsname im regulären Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_range_in_character_class\">SyntaxError: invalid range in character class</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_group\">SyntaxError: invalid regexp group</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_regexp_flag\">SyntaxError: invalid regular expression flag \"x\"</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_invalid_unicode_escape\">SyntaxError: ungültiger Unicode-Escape in regulärem Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/JSON_bad_parse\">SyntaxError: JSON.parse: Fehlerhaftes Parsing</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Label_not_found\">SyntaxError: label not found</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Missing_colon_after_property_id\">SyntaxError: missing : after property id</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Missing_parenthesis_after_argument_list\">SyntaxError: missing ) after argument list</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Missing_parenthesis_after_condition\">SyntaxError: missing ) after condition</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Missing_bracket_after_list\">SyntaxError: missing ] after element list</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Missing_curly_after_function_body\">SyntaxError: fehlende } nach Funktionskörper</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Missing_curly_after_property_list\">SyntaxError: missing } after property list</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Missing_initializer_in_const\">SyntaxError: missing = in const declaration</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Missing_formal_parameter\">SyntaxError: missing formal parameter</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Missing_name_after_dot_operator\">SyntaxError: missing name after . operator</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/No_variable_name\">SyntaxError: missing variable name</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_negated_char_class_with_strings\">SyntaxError: Negierte Zeichenklasse mit Strings im regulären Ausdruck</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_new_optional\">SyntaxError: new-Schlüsselwort kann nicht mit einer Optionalen Kette verwendet werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_nothing_to_repeat\">SyntaxError: nothing to repeat</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_numbers_out_of_order_in_quantifier\">SyntaxError: numbers out of order in {} quantifier.</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Deprecated_octal_escape_sequence\">SyntaxError: Oktale Escape-Sequenzen können nicht in nicht-getaggten Vorlagenliteralen oder im Strict Mode-Code verwendet werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Parameter_after_rest_parameter\">SyntaxError: parameter nach Rest-Parameter</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_delete_private_fields\">SyntaxError: private fields können nicht gelöscht werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Duplicate_proto\">SyntaxError: Eigenschaftenname __proto__ erscheint mehr als einmal im Objektliteral</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Regex_raw_bracket\">SyntaxError: Raw-Klammern sind im regulären Ausdruck mit Unicode-Flag nicht erlaubt</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Redeclared_parameter\">SyntaxError: redeclaration of formal parameter \"x\"</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Undeclared_private_field_or_method\">SyntaxError: Verweis auf nicht deklariertes privates Feld oder Methode #x</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Rest_with_default\">SyntaxError: Restparameter darf keinen Standardwert haben</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_return\">SyntaxError: return not in function</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Setter_one_argument\">SyntaxError: Setter-Funktionen müssen ein Argument haben</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/String_literal_EOL\">SyntaxError: string literal enthält einen nicht-escaped Zeilenumbruch</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_super_call\">SyntaxError: super() ist nur in Konstruktoren abgeleiteter Klassen gültig</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_optional_template\">SyntaxError: getaggtes Template kann nicht mit optionaler Verkettung verwendet werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Hash_outside_class\">SyntaxError: Unerwartetes '#' außerhalb des Klassenkörpers verwendet</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Unexpected_token\">SyntaxError: Unerwartetes Token</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_break\">SyntaxError: unlabeled break muss innerhalb einer Schleife oder eines Switch sein</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Unparenthesized_unary_expr_lhs_exponentiation\">SyntaxError: unverklammerter unärer Ausdruck kann nicht auf der linken Seite von '**' erscheinen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Bad_super_prop\">SyntaxError: Verwendung von Super-Eigenschaften/-mitgliedern ist nur innerhalb von Methoden oder eval-Code innerhalb von Methoden gültig</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Deprecated_source_map_pragma\">SyntaxError: Die Verwendung von //@ zur Angabe von sourceURL-Pragmas ist veraltet. Verwenden Sie stattdessen //#</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/is_not_iterable\">TypeError: 'x' ist nicht iterierbar</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Unexpected_type\">TypeError: \"x\" ist (nicht) \"y\"</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Not_a_constructor\">TypeError: \"x\" ist kein Konstruktor</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Not_a_function\">TypeError: \"x\" ist keine Funktion</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/No_non-null_object\">TypeError: \"x\" ist kein nicht-null-Objekt</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Read-only\">TypeError: \"x\" ist schreibgeschützt</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/BigInt_not_serializable\">TypeError: BigInt-Wert kann nicht in JSON serialisiert werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Builtin_ctor_no_new\">TypeError: Der Aufruf eines eingebauten X-Konstruktors ohne new ist verboten</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Get_set_missing_private\">TypeError: kann nicht auf privates Feld oder Methode zugreifen/setzen: Objekt ist nicht die richtige Klasse</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_assign_to_property\">TypeError: kann Eigenschaft „x“ auf „y“ nicht zuweisen: kein Objekt</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_convert_BigInt_to_number\">TypeError: can't convert BigInt to number</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_convert_x_to_BigInt\">TypeError: kann x nicht in BigInt konvertieren</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_define_property_object_not_extensible\">TypeError: kann Eigenschaft \"x\" nicht definieren: \"obj\" ist nicht erweiterbar</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Non_configurable_array_element\">TypeError: can't delete non-configurable array element</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_redefine_property\">TypeError: kann nicht konfigurierbare Eigenschaft \"x\" neu definieren</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_set_prototype\">TypeError: kann das Prototyp dieses Objekts nicht festlegen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cyclic_prototype\">TypeError: can't set prototype: it would cause a prototype chain cycle</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/in_operator_no_object\">TypeError: kann den 'in'-Operator nicht verwenden, um nach 'x' in 'y' zu suchen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Class_ctor_no_new\">TypeError: Klassenkonstruktoren müssen mit 'new' aufgerufen werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cyclic_object_value\">TypeError: cyclic object value</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Invalid_derived_return\">TypeError: abgeleiteter Klassenkonstruktor hat einen ungültigen Wert x zurückgegeben</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Private_setter_only\">TypeError: getting private setter-only property</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Private_double_initialization\">TypeError: Initialisierung eines Objekts zweimal ist ein Fehler bei privaten Feldern/Methoden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/invalid_right_hand_side_instanceof_operand\">TypeError: ungültiger 'instanceof'-Operand 'x'</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Array_sort_argument\">TypeError: invalides Array.prototype.sort Argument</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Invalid_const_assignment\">TypeError: ungültige Zuweisung zu const \"x\"</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Constructor_cant_be_used_directly\">TypeError: Iterator/AsyncIterator-Konstruktor kann nicht direkt verwendet werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Requires_global_RegExp\">TypeError: matchAll/replaceAll muss mit einem globalen RegExp aufgerufen werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/More_arguments_needed\">TypeError: Mehr Argumente benötigt</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/No_properties\">TypeError: null/undefined hat keine Eigenschaften</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Cant_delete\">TypeError: Eigenschaft \"x\" ist nicht konfigurierbar und kann nicht gelöscht werden</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Reduce_of_empty_array_with_no_initial_value\">TypeError: Reduce eines leeren Arrays ohne initialen Wert</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Getter_only\">TypeError: Einstellung der nur-Getter-Eigenschaft \"x\"</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Key_not_weakly_held\">TypeError: WeakSet-Schlüssel/WeakMap-Wert 'x' muss ein Objekt oder ein nicht registriertes Symbol sein</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Called_on_incompatible_type\">TypeError: X.prototype.y auf inkompatiblen Typ aufgerufen</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Malformed_URI\">URIError: malformed URI sequence</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Already_has_pragma\">Warnung: -file- wird ein //# sourceMappingURL zugewiesen, hat aber bereits eines</a></li><li><a href=\"/de/docs/Web/JavaScript/Reference/Errors/Stmt_after_return\">Warnung: unerreichbarer Code nach return-Anweisung</a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>Sonstiges</summary>\n <ol>\n <li><a href=\"/de/docs/Web/JavaScript/JavaScript_technologies_overview\">JavaScript-Technologie (Übersicht)</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Reference/Lexical_grammar\">Lexikalische Grammatik</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Reference/Iteration_protocols\">Iterationsprotokolle</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Reference/Strict_mode\">Strenger Modus</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Reference/Template_literals\">Vorlagenliterale</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Reference/Trailing_commas\">Abschließende Kommas</a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Reference/Deprecated_and_obsolete_features\">Veraltete Funktionen</a></li>\n </ol>\n </details>\n </li>\n </ol>\n","sidebarMacro":"JsSidebar","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p>Die <strong><code>try...catch</code></strong>-Anweisung besteht aus einem <code>try</code>-Block und entweder einem <code>catch</code>-Block, einem <code>finally</code>-Block oder beidem. Der Code im <code>try</code>-Block wird zuerst ausgeführt, und wenn er eine Ausnahme auslöst, wird der Code im <code>catch</code>-Block ausgeführt. Der Code im <code>finally</code>-Block wird immer ausgeführt, bevor der Kontrollfluss das gesamte Konstrukt verlässt.</p>"}},{"type":"prose","value":{"id":"probieren_sie_es_aus","title":"Probieren Sie es aus","isH3":false,"content":"<iframe class=\"interactive is-js-height\" height=\"200\" src=\"https://interactive-examples.mdn.mozilla.net/pages/js/statement-trycatch.html\" title=\"MDN Web Docs Interactive Example\" allow=\"clipboard-write\" loading=\"lazy\"></iframe>"}},{"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>try {\n tryStatements\n} catch (exceptionVar) {\n catchStatements\n} finally {\n finallyStatements\n}\n</code></pre></div>\n<dl>\n <dt id=\"trystatements\"><a href=\"#trystatements\"><code>tryStatements</code></a></dt>\n <dd>\n <p>Die auszuführenden Anweisungen.</p>\n </dd>\n <dt id=\"catchstatements\"><a href=\"#catchstatements\"><code>catchStatements</code></a></dt>\n <dd>\n <p>Anweisung, die ausgeführt wird, wenn im <code>try</code>-Block eine Ausnahme ausgelöst wird.</p>\n </dd>\n <dt id=\"exceptionvar\"><a href=\"#exceptionvar\"><code>exceptionVar</code></a> <span class=\"badge inline optional\">Optional</span></dt>\n <dd>\n <p>Ein optionaler <a href=\"#catch-bindung\">Bezeichner oder ein Muster</a>, um die abgefangene Ausnahme im zugehörigen <code>catch</code>-Block zu halten. Wenn der <code>catch</code>-Block den Wert der Ausnahme nicht verwendet, können Sie <code>exceptionVar</code> und die umgebenden Klammern weglassen.</p>\n </dd>\n <dt id=\"finallystatements\"><a href=\"#finallystatements\"><code>finallyStatements</code></a></dt>\n <dd>\n <p>Anweisungen, die ausgeführt werden, bevor der Kontrollfluss das <code>try...catch...finally</code>-Konstrukt verlässt. Diese Anweisungen werden unabhängig davon ausgeführt, ob eine Ausnahme ausgelöst oder abgefangen wurde.</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"beschreibung","title":"Beschreibung","isH3":false,"content":"<p>Die <code>try</code>-Anweisung beginnt immer mit einem <code>try</code>-Block. Dann muss ein <code>catch</code>-Block oder ein <code>finally</code>-Block vorhanden sein. Es ist auch möglich, sowohl <code>catch</code>- als auch <code>finally</code>-Blöcke zu haben. Dies gibt uns drei Formen für die <code>try</code>-Anweisung:</p>\n<ul>\n <li><code>try...catch</code></li>\n <li><code>try...finally</code></li>\n <li><code>try...catch...finally</code></li>\n</ul>\n<p>Im Gegensatz zu anderen Konstrukten wie <a href=\"/de/docs/Web/JavaScript/Reference/Statements/if...else\"><code>if</code></a> oder <a href=\"/de/docs/Web/JavaScript/Reference/Statements/for\"><code>for</code></a> müssen die <code>try</code>-, <code>catch</code>- und <code>finally</code>-Blöcke <em>Blöcke</em> sein, statt einzelner Anweisungen.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js example-bad notranslate\"><code>try doSomething(); // SyntaxError\ncatch (e) console.log(e);\n</code></pre></div>\n<p>Ein <code>catch</code>-Block enthält Anweisungen, die festlegen, was zu tun ist, wenn im <code>try</code>-Block eine Ausnahme ausgelöst wird. Wenn eine beliebige Anweisung innerhalb des <code>try</code>-Blocks (oder in einer Funktion, die vom <code>try</code>-Block aus aufgerufen wird) eine Ausnahme auslöst, wird die Kontrolle sofort auf den <code>catch</code>-Block übertragen. Wenn im <code>try</code>-Block keine Ausnahme ausgelöst wird, wird der <code>catch</code>-Block übersprungen.</p>\n<p>Der <code>finally</code>-Block wird immer ausgeführt, bevor der Kontrollfluss das <code>try...catch...finally</code>-Konstrukt verlässt. Er wird unabhängig davon ausgeführt, ob eine Ausnahme ausgelöst oder abgefangen wurde.</p>\n<p>Es ist möglich, ein oder mehrere <code>try</code>-Anweisungen zu verschachteln. Wenn eine innere <code>try</code>-Anweisung keinen <code>catch</code>-Block hat, wird stattdessen der <code>catch</code>-Block der umgebenden <code>try</code>-Anweisung verwendet.</p>\n<p>Sie können die <code>try</code>-Anweisung auch verwenden, um JavaScript-Ausnahmen zu behandeln. Weitere Informationen zu JavaScript-Ausnahmen finden Sie im <a href=\"/de/docs/Web/JavaScript/Guide/Control_flow_and_error_handling#exception_handling_statements\">JavaScript-Leitfaden</a>.</p>"}},{"type":"prose","value":{"id":"catch-bindung","title":"Catch-Bindung","isH3":true,"content":"<p>Wenn im <code>try</code>-Block eine Ausnahme ausgelöst wird, hält <code>exceptionVar</code> (d.h. das <code>e</code> in <code>catch (e)</code>) den Ausnahme-Wert. Sie können diese <a href=\"/de/docs/Glossary/Binding\">Bindung</a> verwenden, um Informationen über die ausgelöste Ausnahme zu erhalten. Diese <a href=\"/de/docs/Glossary/Binding\">Bindung</a> ist nur im <a href=\"/de/docs/Glossary/Scope\">Bereich</a> des <code>catch</code>-Blocks verfügbar.</p>\n<p>Es muss kein einzelner Bezeichner sein. Sie können ein <a href=\"/de/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment\">Destructuring-Muster</a> verwenden, um mehrere Bezeichner auf einmal zuzuweisen.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>try {\n throw new TypeError(\"oops\");\n} catch ({ name, message }) {\n console.log(name); // \"TypeError\"\n console.log(message); // \"oops\"\n}\n</code></pre></div>\n<p>Die durch die <code>catch</code>-Klausel erstellten Bindungen existieren im gleichen Bereich wie der <code>catch</code>-Block, sodass alle im <code>catch</code>-Block deklarierten Variablen nicht denselben Namen wie die durch die <code>catch</code>-Klausel erstellten Bindungen haben können. (Es gibt <a href=\"/de/docs/Web/JavaScript/Reference/Deprecated_and_obsolete_features#statements\">eine Ausnahme von dieser Regel</a>, aber sie ist ein veralteter Syntax.)</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js example-bad notranslate\"><code>try {\n throw new TypeError(\"oops\");\n} catch ({ name, message }) {\n var name; // SyntaxError: Identifier 'name' has already been declared\n let message; // SyntaxError: Identifier 'message' has already been declared\n}\n</code></pre></div>\n<p>Die Ausnahmbindung ist schreibbar. Zum Beispiel möchten Sie möglicherweise den Ausnahme-Wert normalisieren, um sicherzustellen, dass es sich um ein <a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Error\"><code>Error</code></a>-Objekt handelt.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>try {\n throw \"Oops; this is not an Error object\";\n} catch (e) {\n if (!(e instanceof Error)) {\n e = new Error(e);\n }\n console.error(e.message);\n}\n</code></pre></div>\n<p>Wenn Sie den Ausnahme-Wert nicht benötigen, können Sie ihn zusammen mit den umgebenden Klammern weglassen.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>function isValidJSON(text) {\n try {\n JSON.parse(text);\n return true;\n } catch {\n return false;\n }\n}\n</code></pre></div>"}},{"type":"prose","value":{"id":"der_finally-block","title":"Der finally-Block","isH3":true,"content":"<p>Der <code>finally</code>-Block enthält Anweisungen, die nach Ausführung des <code>try</code>-Blocks und der <code>catch</code>-Block(s) ausgeführt werden, jedoch vor den Anweisungen, die dem <code>try...catch...finally</code>-Block folgen. Der Kontrollfluss wird immer den <code>finally</code>-Block durchlaufen, der in einer der folgenden Weisen fortfahren kann:</p>\n<ul>\n <li>Unmittelbar nachdem der <code>try</code>-Block normal abgeschlossen wird (und keine Ausnahmen ausgelöst wurden);</li>\n <li>Unmittelbar nachdem der <code>catch</code>-Block normal abgeschlossen wird;</li>\n <li>Unmittelbar bevor die Ausführung einer Kontrollfluss-Anweisung (<code>return</code>, <code>throw</code>, <code>break</code>, <code>continue</code>) im <code>try</code>-Block oder <code>catch</code>-Block, die den Block verlassen würde, beginnt.</li>\n</ul>\n<p>Wenn von einem <code>try</code>-Block eine Ausnahme ausgelöst wird, selbst wenn kein <code>catch</code>-Block vorhanden ist, um die Ausnahme zu behandeln, wird der <code>finally</code>-Block dennoch ausgeführt, wobei die Ausnahme unmittelbar nach Abschluss des <code>finally</code>-Blocks dennoch ausgelöst wird.</p>\n<p>Das folgende Beispiel zeigt einen Anwendungsfall für den <code>finally</code>-Block. Der Code öffnet eine Datei und führt dann Anweisungen aus, die die Datei verwenden; der <code>finally</code>-Block stellt sicher, dass die Datei immer geschlossen wird, nachdem sie verwendet wurde, auch wenn eine Ausnahme ausgelöst wurde.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>openMyFile();\ntry {\n // tie up a resource\n writeMyFile(theData);\n} finally {\n closeMyFile(); // always close the resource\n}\n</code></pre></div>\n<p>Kontrollfluss-Anweisungen (<code>return</code>, <code>throw</code>, <code>break</code>, <code>continue</code>) im <code>finally</code>-Block werden den Abschlusswert des <code>try</code>-Blocks oder <code>catch</code>-Blocks \"überdecken\". In diesem Beispiel versucht der <code>try</code>-Block, 1 zurückzugeben, aber bevor er zurückgibt, wird der Kontrollfluss zuerst an den <code>finally</code>-Block übergeben, sodass der Rückgabewert des <code>finally</code>-Blocks stattdessen zurückgegeben wird.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>function doIt() {\n try {\n return 1;\n } finally {\n return 2;\n }\n}\n\ndoIt(); // returns 2\n</code></pre></div>\n<p>Es ist generell eine schlechte Idee, Kontrollfluss-Anweisungen im <code>finally</code>-Block zu haben. Verwenden Sie ihn nur für Bereinigungscode.</p>"}},{"type":"prose","value":{"id":"beispiele","title":"Beispiele","isH3":false,"content":""}},{"type":"prose","value":{"id":"unbedingter_catch-block","title":"Unbedingter catch-Block","isH3":true,"content":"<p>Wenn ein <code>catch</code>-Block verwendet wird, wird der <code>catch</code>-Block ausgeführt, wenn eine beliebige Ausnahme vom <code>try</code>-Block ausgelöst wird. Zum Beispiel, wenn die Ausnahme im folgenden Code auftritt, wird die Kontrolle auf den <code>catch</code>-Block übertragen.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>try {\n throw \"myException\"; // generates an exception\n} catch (e) {\n // statements to handle any exceptions\n logMyErrors(e); // pass exception object to error handler\n}\n</code></pre></div>\n<p>Der <code>catch</code>-Block legt einen Bezeichner (<code>e</code> im obigen Beispiel) fest, der den Wert der Ausnahme hält; dieser Wert ist nur im <a href=\"/de/docs/Glossary/Scope\">Bereich</a> des <code>catch</code>-Blocks verfügbar.</p>"}},{"type":"prose","value":{"id":"bedingte_catch-blöcke","title":"Bedingte catch-Blöcke","isH3":true,"content":"<p>Sie können \"Bedingte <code>catch</code>-Blöcke\" erstellen, indem Sie <code>try...catch</code>-Blöcke mit <code>if...else if...else</code>-Strukturen kombinieren, wie folgt:</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>try {\n myRoutine(); // may throw three types of exceptions\n} catch (e) {\n if (e instanceof TypeError) {\n // statements to handle TypeError exceptions\n } else if (e instanceof RangeError) {\n // statements to handle RangeError exceptions\n } else if (e instanceof EvalError) {\n // statements to handle EvalError exceptions\n } else {\n // statements to handle any unspecified exceptions\n logMyErrors(e); // pass exception object to error handler\n }\n}\n</code></pre></div>\n<p>Ein häufiger Anwendungsfall dafür ist, nur einen kleinen Teil erwarteter Fehler abzufangen (und zu unterdrücken) und dann den Fehler in anderen Fällen erneut auszulösen:</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>try {\n myRoutine();\n} catch (e) {\n if (e instanceof RangeError) {\n // statements to handle this very common expected error\n } else {\n throw e; // re-throw the error unchanged\n }\n}\n</code></pre></div>\n<p>Dies kann die Syntax aus anderen Sprachen, wie Java, nachahmen:</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">java</span></div><pre class=\"brush: java notranslate\"><code>try {\n myRoutine();\n} catch (RangeError e) {\n // statements to handle this very common expected error\n}\n// Other errors are implicitly re-thrown\n</code></pre></div>"}},{"type":"prose","value":{"id":"verschachtelte_try-blöcke","title":"Verschachtelte try-Blöcke","isH3":true,"content":"<p>Lassen Sie uns zunächst sehen, was mit diesem passiert:</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>try {\n try {\n throw new Error(\"oops\");\n } finally {\n console.log(\"finally\");\n }\n} catch (ex) {\n console.error(\"outer\", ex.message);\n}\n\n// Logs:\n// \"finally\"\n// \"outer\" \"oops\"\n</code></pre></div>\n<p>Nun, wenn wir die Ausnahme bereits im inneren <code>try</code>-Block gefangen haben, indem wir einen <code>catch</code>-Block hinzufügen:</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>try {\n try {\n throw new Error(\"oops\");\n } catch (ex) {\n console.error(\"inner\", ex.message);\n } finally {\n console.log(\"finally\");\n }\n} catch (ex) {\n console.error(\"outer\", ex.message);\n}\n\n// Logs:\n// \"inner\" \"oops\"\n// \"finally\"\n</code></pre></div>\n<p>Und jetzt, lassen Sie uns den Fehler erneut auslösen.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>try {\n try {\n throw new Error(\"oops\");\n } catch (ex) {\n console.error(\"inner\", ex.message);\n throw ex;\n } finally {\n console.log(\"finally\");\n }\n} catch (ex) {\n console.error(\"outer\", ex.message);\n}\n\n// Logs:\n// \"inner\" \"oops\"\n// \"finally\"\n// \"outer\" \"oops\"\n</code></pre></div>\n<p>Jede gegebene Ausnahme wird nur einmal vom nächstgelegenen, umgebenden <code>catch</code>-Block abgefangen, es sei denn, sie wird erneut ausgelöst. Natürlich werden alle neuen Ausnahmen, die im \"inneren\" Block ausgelöst werden (weil der Code im <code>catch</code>-Block möglicherweise etwas tut, das eine Ausnahme auslöst), vom \"äußeren\" Block abgefangen.</p>"}},{"type":"prose","value":{"id":"rückgabe_aus_einem_finally-block","title":"Rückgabe aus einem finally-Block","isH3":true,"content":"<p>Wenn der <code>finally</code>-Block einen Wert zurückgibt, wird dieser Wert zum Rückgabewert der gesamten <code>try-catch-finally</code>-Anweisung, unabhängig von <code>return</code>-Anweisungen in den <code>try</code>- und <code>catch</code>-Blöcken. Dies gilt auch für Ausnahmen, die innerhalb des <code>catch</code>-Blocks ausgelöst werden:</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>(() => {\n try {\n try {\n throw new Error(\"oops\");\n } catch (ex) {\n console.error(\"inner\", ex.message);\n throw ex;\n } finally {\n console.log(\"finally\");\n return;\n }\n } catch (ex) {\n console.error(\"outer\", ex.message);\n }\n})();\n\n// Logs:\n// \"inner\" \"oops\"\n// \"finally\"\n</code></pre></div>\n<p>Das äußere \"oops\" wird nicht ausgelöst, wegen der Rückgabe im <code>finally</code>-Block. Gleiches würde für jeden zurückgegebenen Wert aus dem <code>catch</code>-Block gelten.</p>"}},{"type":"specifications","value":{"title":"Spezifikationen","id":"spezifikationen","isH3":false,"specifications":[{"bcdSpecificationURL":"https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-try-statement","title":"ECMAScript Language Specification"}],"query":"javascript.statements.try_catch"}},{"type":"browser_compatibility","value":{"title":"Browser-Kompatibilität","id":"browser-kompatibilität","isH3":false,"query":"javascript.statements.try_catch"}},{"type":"prose","value":{"id":"siehe_auch","title":"Siehe auch","isH3":false,"content":"<ul>\n <li><a href=\"/de/docs/Web/JavaScript/Reference/Global_Objects/Error\"><code>Error</code></a></li>\n <li><a href=\"/de/docs/Web/JavaScript/Reference/Statements/throw\"><code>throw</code></a></li>\n</ul>"}}],"toc":[{"text":"Probieren Sie es aus","id":"probieren_sie_es_aus"},{"text":"Syntax","id":"syntax"},{"text":"Beschreibung","id":"beschreibung"},{"text":"Beispiele","id":"beispiele"},{"text":"Spezifikationen","id":"spezifikationen"},{"text":"Browser-Kompatibilität","id":"browser-kompatibilität"},{"text":"Siehe auch","id":"siehe_auch"}],"summary":"Die try...catch-Anweisung besteht aus einem try-Block und entweder einem catch-Block, einem finally-Block oder beidem. Der Code im try-Block wird zuerst ausgeführt, und wenn er eine Ausnahme auslöst, wird der Code im catch-Block ausgeführt. Der Code im finally-Block wird immer ausgeführt, bevor der Kontrollfluss das gesamte Konstrukt verlässt.","popularity":0,"modified":"2022-08-14T03:39:57.000Z","other_translations":[{"locale":"en-US","title":"try...catch","native":"English (US)"},{"locale":"es","title":"try...catch","native":"Español"},{"locale":"fr","title":"try...catch","native":"Français"},{"locale":"ja","title":"try...catch","native":"日本語"},{"locale":"ko","title":"try...catch","native":"한국어"},{"locale":"pt-BR","title":"try...catch","native":"Português (do Brasil)"},{"locale":"ru","title":"try...catch","native":"Русский"},{"locale":"zh-CN","title":"try...catch","native":"中文 (简体)"},{"locale":"zh-TW","title":"try...catch 語法","native":"正體中文 (繁體)"}],"pageType":"unknown","source":{"folder":"de/web/javascript/reference/statements/try...catch","github_url":"https://github.com/mdn/translated-content/blob/main/files/de/web/javascript/reference/statements/try...catch/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/aebcbfc2355fccddc193e6b25ba720935bf90172","filename":"index.md"},"short_title":"try...catch","parents":[{"uri":"/de/docs/Web","title":"Web-Technologien für Entwickler"},{"uri":"/de/docs/Web/JavaScript","title":"JavaScript"},{"uri":"/de/docs/Web/JavaScript/Reference","title":"JavaScript-Referenz"},{"uri":"/de/docs/Web/JavaScript/Reference/Statements","title":"Statements und Deklarationen"},{"uri":"/de/docs/Web/JavaScript/Reference/Statements/try...catch","title":"try...catch"}],"pageTitle":"try...catch - JavaScript | MDN","noIndexing":false}}</script></body></html>