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v18.20.1 documentation</h1> 1001cb0ef41Sopenharmony_ci <button class="theme-toggle-btn" id="theme-toggle-btn" title="Toggle dark mode/light mode" aria-label="Toggle dark mode/light mode" hidden> 1011cb0ef41Sopenharmony_ci <svg xmlns="http://www.w3.org/2000/svg" class="icon dark-icon" height="24" width="24"> 1021cb0ef41Sopenharmony_ci <path fill="none" d="M0 0h24v24H0z" /> 1031cb0ef41Sopenharmony_ci <path d="M11.1 12.08c-2.33-4.51-.5-8.48.53-10.07C6.27 2.2 1.98 6.59 1.98 12c0 .14.02.28.02.42.62-.27 1.29-.42 2-.42 1.66 0 3.18.83 4.1 2.15A4.01 4.01 0 0111 18c0 1.52-.87 2.83-2.12 3.51.98.32 2.03.5 3.11.5 3.5 0 6.58-1.8 8.37-4.52-2.36.23-6.98-.97-9.26-5.41z"/> 1041cb0ef41Sopenharmony_ci <path d="M7 16h-.18C6.4 14.84 5.3 14 4 14c-1.66 0-3 1.34-3 3s1.34 3 3 3h3c1.1 0 2-.9 2-2s-.9-2-2-2z"/> 1051cb0ef41Sopenharmony_ci </svg> 1061cb0ef41Sopenharmony_ci <svg xmlns="http://www.w3.org/2000/svg" class="icon light-icon" height="24" width="24"> 1071cb0ef41Sopenharmony_ci <path d="M0 0h24v24H0z" fill="none" /> 1081cb0ef41Sopenharmony_ci <path d="M6.76 4.84l-1.8-1.79-1.41 1.41 1.79 1.79 1.42-1.41zM4 10.5H1v2h3v-2zm9-9.95h-2V3.5h2V.55zm7.45 3.91l-1.41-1.41-1.79 1.79 1.41 1.41 1.79-1.79zm-3.21 13.7l1.79 1.8 1.41-1.41-1.8-1.79-1.4 1.4zM20 10.5v2h3v-2h-3zm-8-5c-3.31 0-6 2.69-6 6s2.69 6 6 6 6-2.69 6-6-2.69-6-6-6zm-1 16.95h2V19.5h-2v2.95zm-7.45-3.91l1.41 1.41 1.79-1.8-1.41-1.41-1.79 1.8z"/> 1091cb0ef41Sopenharmony_ci </svg> 1101cb0ef41Sopenharmony_ci </button> 1111cb0ef41Sopenharmony_ci </div> 1121cb0ef41Sopenharmony_ci <div id="gtoc"> 1131cb0ef41Sopenharmony_ci <ul> 1141cb0ef41Sopenharmony_ci <li class="pinned-header">Node.js v18.20.1</li> 1151cb0ef41Sopenharmony_ci 1161cb0ef41Sopenharmony_ci <li class="picker-header"> 1171cb0ef41Sopenharmony_ci <a href="#"> 1181cb0ef41Sopenharmony_ci <span class="collapsed-arrow">►</span><span class="expanded-arrow">▼</span> 1191cb0ef41Sopenharmony_ci Table of contents 1201cb0ef41Sopenharmony_ci </a> 1211cb0ef41Sopenharmony_ci 1221cb0ef41Sopenharmony_ci <div class="picker"><div class="toc"><ul> 1231cb0ef41Sopenharmony_ci<li><a href="#global-objects">Global objects</a> 1241cb0ef41Sopenharmony_ci<ul> 1251cb0ef41Sopenharmony_ci<li><a href="#class-abortcontroller">Class: <code>AbortController</code></a> 1261cb0ef41Sopenharmony_ci<ul> 1271cb0ef41Sopenharmony_ci<li><a href="#abortcontrollerabortreason"><code>abortController.abort([reason])</code></a></li> 1281cb0ef41Sopenharmony_ci<li><a href="#abortcontrollersignal"><code>abortController.signal</code></a></li> 1291cb0ef41Sopenharmony_ci<li><a href="#class-abortsignal">Class: <code>AbortSignal</code></a> 1301cb0ef41Sopenharmony_ci<ul> 1311cb0ef41Sopenharmony_ci<li><a href="#static-method-abortsignalabortreason">Static method: <code>AbortSignal.abort([reason])</code></a></li> 1321cb0ef41Sopenharmony_ci<li><a href="#static-method-abortsignaltimeoutdelay">Static method: <code>AbortSignal.timeout(delay)</code></a></li> 1331cb0ef41Sopenharmony_ci<li><a href="#static-method-abortsignalanysignals">Static method: <code>AbortSignal.any(signals)</code></a></li> 1341cb0ef41Sopenharmony_ci<li><a href="#event-abort">Event: <code>'abort'</code></a></li> 1351cb0ef41Sopenharmony_ci<li><a href="#abortsignalaborted"><code>abortSignal.aborted</code></a></li> 1361cb0ef41Sopenharmony_ci<li><a href="#abortsignalonabort"><code>abortSignal.onabort</code></a></li> 1371cb0ef41Sopenharmony_ci<li><a href="#abortsignalreason"><code>abortSignal.reason</code></a></li> 1381cb0ef41Sopenharmony_ci<li><a href="#abortsignalthrowifaborted"><code>abortSignal.throwIfAborted()</code></a></li> 1391cb0ef41Sopenharmony_ci</ul> 1401cb0ef41Sopenharmony_ci</li> 1411cb0ef41Sopenharmony_ci</ul> 1421cb0ef41Sopenharmony_ci</li> 1431cb0ef41Sopenharmony_ci<li><a href="#class-blob">Class: <code>Blob</code></a></li> 1441cb0ef41Sopenharmony_ci<li><a href="#class-buffer">Class: <code>Buffer</code></a></li> 1451cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-bytelengthqueuingstrategy">Class: <code>ByteLengthQueuingStrategy</code></a></span></li> 1461cb0ef41Sopenharmony_ci<li><a href="#__dirname"><code>__dirname</code></a></li> 1471cb0ef41Sopenharmony_ci<li><a href="#__filename"><code>__filename</code></a></li> 1481cb0ef41Sopenharmony_ci<li><span class="stability_3"><a href="#atobdata"><code>atob(data)</code></a></span></li> 1491cb0ef41Sopenharmony_ci<li><a href="#broadcastchannel"><code>BroadcastChannel</code></a></li> 1501cb0ef41Sopenharmony_ci<li><span class="stability_3"><a href="#btoadata"><code>btoa(data)</code></a></span></li> 1511cb0ef41Sopenharmony_ci<li><a href="#clearimmediateimmediateobject"><code>clearImmediate(immediateObject)</code></a></li> 1521cb0ef41Sopenharmony_ci<li><a href="#clearintervalintervalobject"><code>clearInterval(intervalObject)</code></a></li> 1531cb0ef41Sopenharmony_ci<li><a href="#cleartimeouttimeoutobject"><code>clearTimeout(timeoutObject)</code></a></li> 1541cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-compressionstream">Class: <code>CompressionStream</code></a></span></li> 1551cb0ef41Sopenharmony_ci<li><a href="#console"><code>console</code></a></li> 1561cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-countqueuingstrategy">Class: <code>CountQueuingStrategy</code></a></span></li> 1571cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#crypto"><code>Crypto</code></a></span></li> 1581cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#crypto_1"><code>crypto</code></a></span></li> 1591cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#cryptokey"><code>CryptoKey</code></a></span></li> 1601cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#customevent"><code>CustomEvent</code></a></span></li> 1611cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-decompressionstream">Class: <code>DecompressionStream</code></a></span></li> 1621cb0ef41Sopenharmony_ci<li><a href="#event"><code>Event</code></a></li> 1631cb0ef41Sopenharmony_ci<li><a href="#eventtarget"><code>EventTarget</code></a></li> 1641cb0ef41Sopenharmony_ci<li><a href="#exports"><code>exports</code></a></li> 1651cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#fetch"><code>fetch</code></a></span></li> 1661cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-formdata">Class <code>FormData</code></a></span></li> 1671cb0ef41Sopenharmony_ci<li><span class="stability_3"><a href="#global"><code>global</code></a></span></li> 1681cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-headers">Class <code>Headers</code></a></span></li> 1691cb0ef41Sopenharmony_ci<li><a href="#messagechannel"><code>MessageChannel</code></a></li> 1701cb0ef41Sopenharmony_ci<li><a href="#messageevent"><code>MessageEvent</code></a></li> 1711cb0ef41Sopenharmony_ci<li><a href="#messageport"><code>MessagePort</code></a></li> 1721cb0ef41Sopenharmony_ci<li><a href="#module"><code>module</code></a></li> 1731cb0ef41Sopenharmony_ci<li><a href="#performance"><code>performance</code></a></li> 1741cb0ef41Sopenharmony_ci<li><a href="#process"><code>process</code></a></li> 1751cb0ef41Sopenharmony_ci<li><a href="#queuemicrotaskcallback"><code>queueMicrotask(callback)</code></a></li> 1761cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablebytestreamcontroller">Class: <code>ReadableByteStreamController</code></a></span></li> 1771cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestream">Class: <code>ReadableStream</code></a></span></li> 1781cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestreambyobreader">Class: <code>ReadableStreamBYOBReader</code></a></span></li> 1791cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestreambyobrequest">Class: <code>ReadableStreamBYOBRequest</code></a></span></li> 1801cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestreamdefaultcontroller">Class: <code>ReadableStreamDefaultController</code></a></span></li> 1811cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestreamdefaultreader">Class: <code>ReadableStreamDefaultReader</code></a></span></li> 1821cb0ef41Sopenharmony_ci<li><a href="#require"><code>require()</code></a></li> 1831cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#response"><code>Response</code></a></span></li> 1841cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#request"><code>Request</code></a></span></li> 1851cb0ef41Sopenharmony_ci<li><a href="#setimmediatecallback-args"><code>setImmediate(callback[, ...args])</code></a></li> 1861cb0ef41Sopenharmony_ci<li><a href="#setintervalcallback-delay-args"><code>setInterval(callback, delay[, ...args])</code></a></li> 1871cb0ef41Sopenharmony_ci<li><a href="#settimeoutcallback-delay-args"><code>setTimeout(callback, delay[, ...args])</code></a></li> 1881cb0ef41Sopenharmony_ci<li><a href="#structuredclonevalue-options"><code>structuredClone(value[, options])</code></a></li> 1891cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#subtlecrypto"><code>SubtleCrypto</code></a></span></li> 1901cb0ef41Sopenharmony_ci<li><a href="#domexception"><code>DOMException</code></a></li> 1911cb0ef41Sopenharmony_ci<li><a href="#textdecoder"><code>TextDecoder</code></a></li> 1921cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-textdecoderstream">Class: <code>TextDecoderStream</code></a></span></li> 1931cb0ef41Sopenharmony_ci<li><a href="#textencoder"><code>TextEncoder</code></a></li> 1941cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-textencoderstream">Class: <code>TextEncoderStream</code></a></span></li> 1951cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-transformstream">Class: <code>TransformStream</code></a></span></li> 1961cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-transformstreamdefaultcontroller">Class: <code>TransformStreamDefaultController</code></a></span></li> 1971cb0ef41Sopenharmony_ci<li><a href="#url"><code>URL</code></a></li> 1981cb0ef41Sopenharmony_ci<li><a href="#urlsearchparams"><code>URLSearchParams</code></a></li> 1991cb0ef41Sopenharmony_ci<li><a href="#webassembly"><code>WebAssembly</code></a></li> 2001cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-writablestream">Class: <code>WritableStream</code></a></span></li> 2011cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-writablestreamdefaultcontroller">Class: <code>WritableStreamDefaultController</code></a></span></li> 2021cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-writablestreamdefaultwriter">Class: <code>WritableStreamDefaultWriter</code></a></span></li> 2031cb0ef41Sopenharmony_ci</ul> 2041cb0ef41Sopenharmony_ci</li> 2051cb0ef41Sopenharmony_ci</ul></div></div> 2061cb0ef41Sopenharmony_ci </li> 2071cb0ef41Sopenharmony_ci 2081cb0ef41Sopenharmony_ci 2091cb0ef41Sopenharmony_ci <li class="picker-header"> 2101cb0ef41Sopenharmony_ci <a href="#"> 2111cb0ef41Sopenharmony_ci <span class="collapsed-arrow">►</span><span class="expanded-arrow">▼</span> 2121cb0ef41Sopenharmony_ci Index 2131cb0ef41Sopenharmony_ci </a> 2141cb0ef41Sopenharmony_ci 2151cb0ef41Sopenharmony_ci <div class="picker"><ul> 2161cb0ef41Sopenharmony_ci<li><a href="documentation.html" class="nav-documentation">About this documentation</a></li> 2171cb0ef41Sopenharmony_ci<li><a href="synopsis.html" class="nav-synopsis">Usage and example</a></li> 2181cb0ef41Sopenharmony_ci 2191cb0ef41Sopenharmony_ci <li> 2201cb0ef41Sopenharmony_ci <a href="index.html">Index</a> 2211cb0ef41Sopenharmony_ci </li> 2221cb0ef41Sopenharmony_ci </ul> 2231cb0ef41Sopenharmony_ci 2241cb0ef41Sopenharmony_ci<hr class="line"> 2251cb0ef41Sopenharmony_ci<ul> 2261cb0ef41Sopenharmony_ci<li><a href="assert.html" class="nav-assert">Assertion testing</a></li> 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class="nav-globals active">Globals</a></li> 2481cb0ef41Sopenharmony_ci<li><a href="http.html" class="nav-http">HTTP</a></li> 2491cb0ef41Sopenharmony_ci<li><a href="http2.html" class="nav-http2">HTTP/2</a></li> 2501cb0ef41Sopenharmony_ci<li><a href="https.html" class="nav-https">HTTPS</a></li> 2511cb0ef41Sopenharmony_ci<li><a href="inspector.html" class="nav-inspector">Inspector</a></li> 2521cb0ef41Sopenharmony_ci<li><a href="intl.html" class="nav-intl">Internationalization</a></li> 2531cb0ef41Sopenharmony_ci<li><a href="modules.html" class="nav-modules">Modules: CommonJS modules</a></li> 2541cb0ef41Sopenharmony_ci<li><a href="esm.html" class="nav-esm">Modules: ECMAScript modules</a></li> 2551cb0ef41Sopenharmony_ci<li><a href="module.html" class="nav-module">Modules: <code>node:module</code> API</a></li> 2561cb0ef41Sopenharmony_ci<li><a href="packages.html" class="nav-packages">Modules: Packages</a></li> 2571cb0ef41Sopenharmony_ci<li><a href="net.html" class="nav-net">Net</a></li> 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href="v8.html" class="nav-v8">V8</a></li> 2801cb0ef41Sopenharmony_ci<li><a href="vm.html" class="nav-vm">VM</a></li> 2811cb0ef41Sopenharmony_ci<li><a href="wasi.html" class="nav-wasi">WASI</a></li> 2821cb0ef41Sopenharmony_ci<li><a href="webcrypto.html" class="nav-webcrypto">Web Crypto API</a></li> 2831cb0ef41Sopenharmony_ci<li><a href="webstreams.html" class="nav-webstreams">Web Streams API</a></li> 2841cb0ef41Sopenharmony_ci<li><a href="worker_threads.html" class="nav-worker_threads">Worker threads</a></li> 2851cb0ef41Sopenharmony_ci<li><a href="zlib.html" class="nav-zlib">Zlib</a></li> 2861cb0ef41Sopenharmony_ci</ul> 2871cb0ef41Sopenharmony_ci<hr class="line"> 2881cb0ef41Sopenharmony_ci<ul> 2891cb0ef41Sopenharmony_ci<li><a href="https://github.com/nodejs/node" class="nav-https-github-com-nodejs-node">Code repository and issue tracker</a></li> 2901cb0ef41Sopenharmony_ci</ul></div> 2911cb0ef41Sopenharmony_ci </li> 2921cb0ef41Sopenharmony_ci 2931cb0ef41Sopenharmony_ci 2941cb0ef41Sopenharmony_ci <li class="picker-header"> 2951cb0ef41Sopenharmony_ci <a href="#"> 2961cb0ef41Sopenharmony_ci <span class="collapsed-arrow">►</span><span class="expanded-arrow">▼</span> 2971cb0ef41Sopenharmony_ci Other versions 2981cb0ef41Sopenharmony_ci </a> 2991cb0ef41Sopenharmony_ci <div class="picker"><ol id="alt-docs"><li><a href="https://nodejs.org/docs/latest-v21.x/api/globals.html">21.x</a></li> 3001cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v20.x/api/globals.html">20.x <b>LTS</b></a></li> 3011cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v19.x/api/globals.html">19.x</a></li> 3021cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v18.x/api/globals.html">18.x <b>LTS</b></a></li> 3031cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v17.x/api/globals.html">17.x</a></li> 3041cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v16.x/api/globals.html">16.x</a></li> 3051cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v15.x/api/globals.html">15.x</a></li> 3061cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v14.x/api/globals.html">14.x</a></li> 3071cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v13.x/api/globals.html">13.x</a></li> 3081cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v12.x/api/globals.html">12.x</a></li> 3091cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v11.x/api/globals.html">11.x</a></li> 3101cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v10.x/api/globals.html">10.x</a></li> 3111cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v9.x/api/globals.html">9.x</a></li> 3121cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v8.x/api/globals.html">8.x</a></li> 3131cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v7.x/api/globals.html">7.x</a></li> 3141cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v6.x/api/globals.html">6.x</a></li> 3151cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v5.x/api/globals.html">5.x</a></li> 3161cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v4.x/api/globals.html">4.x</a></li> 3171cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v0.12.x/api/globals.html">0.12.x</a></li> 3181cb0ef41Sopenharmony_ci<li><a href="https://nodejs.org/docs/latest-v0.10.x/api/globals.html">0.10.x</a></li></ol></div> 3191cb0ef41Sopenharmony_ci </li> 3201cb0ef41Sopenharmony_ci 3211cb0ef41Sopenharmony_ci <li class="picker-header"> 3221cb0ef41Sopenharmony_ci <a href="#"> 3231cb0ef41Sopenharmony_ci <span class="collapsed-arrow">►</span><span class="expanded-arrow">▼</span> 3241cb0ef41Sopenharmony_ci Options 3251cb0ef41Sopenharmony_ci </a> 3261cb0ef41Sopenharmony_ci 3271cb0ef41Sopenharmony_ci <div class="picker"> 3281cb0ef41Sopenharmony_ci <ul> 3291cb0ef41Sopenharmony_ci <li> 3301cb0ef41Sopenharmony_ci <a href="all.html">View on single page</a> 3311cb0ef41Sopenharmony_ci </li> 3321cb0ef41Sopenharmony_ci <li> 3331cb0ef41Sopenharmony_ci <a href="globals.json">View as JSON</a> 3341cb0ef41Sopenharmony_ci </li> 3351cb0ef41Sopenharmony_ci <li class="edit_on_github"><a href="https://github.com/nodejs/node/edit/main/doc/api/globals.md">Edit on GitHub</a></li> 3361cb0ef41Sopenharmony_ci </ul> 3371cb0ef41Sopenharmony_ci </div> 3381cb0ef41Sopenharmony_ci </li> 3391cb0ef41Sopenharmony_ci </ul> 3401cb0ef41Sopenharmony_ci </div> 3411cb0ef41Sopenharmony_ci <hr> 3421cb0ef41Sopenharmony_ci </header> 3431cb0ef41Sopenharmony_ci 3441cb0ef41Sopenharmony_ci <details id="toc" open><summary>Table of contents</summary><ul> 3451cb0ef41Sopenharmony_ci<li><a href="#global-objects">Global objects</a> 3461cb0ef41Sopenharmony_ci<ul> 3471cb0ef41Sopenharmony_ci<li><a href="#class-abortcontroller">Class: <code>AbortController</code></a> 3481cb0ef41Sopenharmony_ci<ul> 3491cb0ef41Sopenharmony_ci<li><a href="#abortcontrollerabortreason"><code>abortController.abort([reason])</code></a></li> 3501cb0ef41Sopenharmony_ci<li><a href="#abortcontrollersignal"><code>abortController.signal</code></a></li> 3511cb0ef41Sopenharmony_ci<li><a href="#class-abortsignal">Class: <code>AbortSignal</code></a> 3521cb0ef41Sopenharmony_ci<ul> 3531cb0ef41Sopenharmony_ci<li><a href="#static-method-abortsignalabortreason">Static method: <code>AbortSignal.abort([reason])</code></a></li> 3541cb0ef41Sopenharmony_ci<li><a href="#static-method-abortsignaltimeoutdelay">Static method: <code>AbortSignal.timeout(delay)</code></a></li> 3551cb0ef41Sopenharmony_ci<li><a href="#static-method-abortsignalanysignals">Static method: <code>AbortSignal.any(signals)</code></a></li> 3561cb0ef41Sopenharmony_ci<li><a href="#event-abort">Event: <code>'abort'</code></a></li> 3571cb0ef41Sopenharmony_ci<li><a href="#abortsignalaborted"><code>abortSignal.aborted</code></a></li> 3581cb0ef41Sopenharmony_ci<li><a href="#abortsignalonabort"><code>abortSignal.onabort</code></a></li> 3591cb0ef41Sopenharmony_ci<li><a href="#abortsignalreason"><code>abortSignal.reason</code></a></li> 3601cb0ef41Sopenharmony_ci<li><a href="#abortsignalthrowifaborted"><code>abortSignal.throwIfAborted()</code></a></li> 3611cb0ef41Sopenharmony_ci</ul> 3621cb0ef41Sopenharmony_ci</li> 3631cb0ef41Sopenharmony_ci</ul> 3641cb0ef41Sopenharmony_ci</li> 3651cb0ef41Sopenharmony_ci<li><a href="#class-blob">Class: <code>Blob</code></a></li> 3661cb0ef41Sopenharmony_ci<li><a href="#class-buffer">Class: <code>Buffer</code></a></li> 3671cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-bytelengthqueuingstrategy">Class: <code>ByteLengthQueuingStrategy</code></a></span></li> 3681cb0ef41Sopenharmony_ci<li><a href="#__dirname"><code>__dirname</code></a></li> 3691cb0ef41Sopenharmony_ci<li><a href="#__filename"><code>__filename</code></a></li> 3701cb0ef41Sopenharmony_ci<li><span class="stability_3"><a href="#atobdata"><code>atob(data)</code></a></span></li> 3711cb0ef41Sopenharmony_ci<li><a href="#broadcastchannel"><code>BroadcastChannel</code></a></li> 3721cb0ef41Sopenharmony_ci<li><span class="stability_3"><a href="#btoadata"><code>btoa(data)</code></a></span></li> 3731cb0ef41Sopenharmony_ci<li><a href="#clearimmediateimmediateobject"><code>clearImmediate(immediateObject)</code></a></li> 3741cb0ef41Sopenharmony_ci<li><a href="#clearintervalintervalobject"><code>clearInterval(intervalObject)</code></a></li> 3751cb0ef41Sopenharmony_ci<li><a href="#cleartimeouttimeoutobject"><code>clearTimeout(timeoutObject)</code></a></li> 3761cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-compressionstream">Class: <code>CompressionStream</code></a></span></li> 3771cb0ef41Sopenharmony_ci<li><a href="#console"><code>console</code></a></li> 3781cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-countqueuingstrategy">Class: <code>CountQueuingStrategy</code></a></span></li> 3791cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#crypto"><code>Crypto</code></a></span></li> 3801cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#crypto_1"><code>crypto</code></a></span></li> 3811cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#cryptokey"><code>CryptoKey</code></a></span></li> 3821cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#customevent"><code>CustomEvent</code></a></span></li> 3831cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-decompressionstream">Class: <code>DecompressionStream</code></a></span></li> 3841cb0ef41Sopenharmony_ci<li><a href="#event"><code>Event</code></a></li> 3851cb0ef41Sopenharmony_ci<li><a href="#eventtarget"><code>EventTarget</code></a></li> 3861cb0ef41Sopenharmony_ci<li><a href="#exports"><code>exports</code></a></li> 3871cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#fetch"><code>fetch</code></a></span></li> 3881cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-formdata">Class <code>FormData</code></a></span></li> 3891cb0ef41Sopenharmony_ci<li><span class="stability_3"><a href="#global"><code>global</code></a></span></li> 3901cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-headers">Class <code>Headers</code></a></span></li> 3911cb0ef41Sopenharmony_ci<li><a href="#messagechannel"><code>MessageChannel</code></a></li> 3921cb0ef41Sopenharmony_ci<li><a href="#messageevent"><code>MessageEvent</code></a></li> 3931cb0ef41Sopenharmony_ci<li><a href="#messageport"><code>MessagePort</code></a></li> 3941cb0ef41Sopenharmony_ci<li><a href="#module"><code>module</code></a></li> 3951cb0ef41Sopenharmony_ci<li><a href="#performance"><code>performance</code></a></li> 3961cb0ef41Sopenharmony_ci<li><a href="#process"><code>process</code></a></li> 3971cb0ef41Sopenharmony_ci<li><a href="#queuemicrotaskcallback"><code>queueMicrotask(callback)</code></a></li> 3981cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablebytestreamcontroller">Class: <code>ReadableByteStreamController</code></a></span></li> 3991cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestream">Class: <code>ReadableStream</code></a></span></li> 4001cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestreambyobreader">Class: <code>ReadableStreamBYOBReader</code></a></span></li> 4011cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestreambyobrequest">Class: <code>ReadableStreamBYOBRequest</code></a></span></li> 4021cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestreamdefaultcontroller">Class: <code>ReadableStreamDefaultController</code></a></span></li> 4031cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-readablestreamdefaultreader">Class: <code>ReadableStreamDefaultReader</code></a></span></li> 4041cb0ef41Sopenharmony_ci<li><a href="#require"><code>require()</code></a></li> 4051cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#response"><code>Response</code></a></span></li> 4061cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#request"><code>Request</code></a></span></li> 4071cb0ef41Sopenharmony_ci<li><a href="#setimmediatecallback-args"><code>setImmediate(callback[, ...args])</code></a></li> 4081cb0ef41Sopenharmony_ci<li><a href="#setintervalcallback-delay-args"><code>setInterval(callback, delay[, ...args])</code></a></li> 4091cb0ef41Sopenharmony_ci<li><a href="#settimeoutcallback-delay-args"><code>setTimeout(callback, delay[, ...args])</code></a></li> 4101cb0ef41Sopenharmony_ci<li><a href="#structuredclonevalue-options"><code>structuredClone(value[, options])</code></a></li> 4111cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#subtlecrypto"><code>SubtleCrypto</code></a></span></li> 4121cb0ef41Sopenharmony_ci<li><a href="#domexception"><code>DOMException</code></a></li> 4131cb0ef41Sopenharmony_ci<li><a href="#textdecoder"><code>TextDecoder</code></a></li> 4141cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-textdecoderstream">Class: <code>TextDecoderStream</code></a></span></li> 4151cb0ef41Sopenharmony_ci<li><a href="#textencoder"><code>TextEncoder</code></a></li> 4161cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-textencoderstream">Class: <code>TextEncoderStream</code></a></span></li> 4171cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-transformstream">Class: <code>TransformStream</code></a></span></li> 4181cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-transformstreamdefaultcontroller">Class: <code>TransformStreamDefaultController</code></a></span></li> 4191cb0ef41Sopenharmony_ci<li><a href="#url"><code>URL</code></a></li> 4201cb0ef41Sopenharmony_ci<li><a href="#urlsearchparams"><code>URLSearchParams</code></a></li> 4211cb0ef41Sopenharmony_ci<li><a href="#webassembly"><code>WebAssembly</code></a></li> 4221cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-writablestream">Class: <code>WritableStream</code></a></span></li> 4231cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-writablestreamdefaultcontroller">Class: <code>WritableStreamDefaultController</code></a></span></li> 4241cb0ef41Sopenharmony_ci<li><span class="stability_1"><a href="#class-writablestreamdefaultwriter">Class: <code>WritableStreamDefaultWriter</code></a></span></li> 4251cb0ef41Sopenharmony_ci</ul> 4261cb0ef41Sopenharmony_ci</li> 4271cb0ef41Sopenharmony_ci</ul></details> 4281cb0ef41Sopenharmony_ci 4291cb0ef41Sopenharmony_ci <div id="apicontent"> 4301cb0ef41Sopenharmony_ci <h2>Global objects<span><a class="mark" href="#global-objects" id="global-objects">#</a></span><a aria-hidden="true" class="legacy" id="globals_global_objects"></a></h2> 4311cb0ef41Sopenharmony_ci 4321cb0ef41Sopenharmony_ci 4331cb0ef41Sopenharmony_ci<p>These objects are available in all modules. The following variables may appear 4341cb0ef41Sopenharmony_cito be global but are not. They exist only in the scope of modules, see the 4351cb0ef41Sopenharmony_ci<a href="modules.html">module system documentation</a>:</p> 4361cb0ef41Sopenharmony_ci<ul> 4371cb0ef41Sopenharmony_ci<li><a href="modules.html#__dirname"><code>__dirname</code></a></li> 4381cb0ef41Sopenharmony_ci<li><a href="modules.html#__filename"><code>__filename</code></a></li> 4391cb0ef41Sopenharmony_ci<li><a href="modules.html#exports"><code>exports</code></a></li> 4401cb0ef41Sopenharmony_ci<li><a href="modules.html#module"><code>module</code></a></li> 4411cb0ef41Sopenharmony_ci<li><a href="modules.html#requireid"><code>require()</code></a></li> 4421cb0ef41Sopenharmony_ci</ul> 4431cb0ef41Sopenharmony_ci<p>The objects listed here are specific to Node.js. There are <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects">built-in objects</a> 4441cb0ef41Sopenharmony_cithat are part of the JavaScript language itself, which are also globally 4451cb0ef41Sopenharmony_ciaccessible.</p> 4461cb0ef41Sopenharmony_ci<section><h3>Class: <code>AbortController</code><span><a class="mark" href="#class-abortcontroller" id="class-abortcontroller">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_abortcontroller"></a></h3> 4471cb0ef41Sopenharmony_ci<div class="api_metadata"> 4481cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 4491cb0ef41Sopenharmony_ci<table> 4501cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 4511cb0ef41Sopenharmony_ci<tr><td>v15.4.0</td> 4521cb0ef41Sopenharmony_ci<td><p>No longer experimental.</p></td></tr> 4531cb0ef41Sopenharmony_ci<tr><td>v15.0.0, v14.17.0</td> 4541cb0ef41Sopenharmony_ci<td><p><span>Added in: v15.0.0, v14.17.0</span></p></td></tr> 4551cb0ef41Sopenharmony_ci</tbody></table> 4561cb0ef41Sopenharmony_ci</details> 4571cb0ef41Sopenharmony_ci</div> 4581cb0ef41Sopenharmony_ci 4591cb0ef41Sopenharmony_ci<p>A utility class used to signal cancelation in selected <code>Promise</code>-based APIs. 4601cb0ef41Sopenharmony_ciThe API is based on the Web API <a href="https://developer.mozilla.org/en-US/docs/Web/API/AbortController"><code>AbortController</code></a>.</p> 4611cb0ef41Sopenharmony_ci<pre><code class="language-js"><span class="hljs-keyword">const</span> ac = <span class="hljs-keyword">new</span> <span class="hljs-title class_">AbortController</span>(); 4621cb0ef41Sopenharmony_ci 4631cb0ef41Sopenharmony_ciac.<span class="hljs-property">signal</span>.<span class="hljs-title function_">addEventListener</span>(<span class="hljs-string">'abort'</span>, <span class="hljs-function">() =></span> <span class="hljs-variable language_">console</span>.<span class="hljs-title function_">log</span>(<span class="hljs-string">'Aborted!'</span>), 4641cb0ef41Sopenharmony_ci { <span class="hljs-attr">once</span>: <span class="hljs-literal">true</span> }); 4651cb0ef41Sopenharmony_ci 4661cb0ef41Sopenharmony_ciac.<span class="hljs-title function_">abort</span>(); 4671cb0ef41Sopenharmony_ci 4681cb0ef41Sopenharmony_ci<span class="hljs-variable language_">console</span>.<span class="hljs-title function_">log</span>(ac.<span class="hljs-property">signal</span>.<span class="hljs-property">aborted</span>); <span class="hljs-comment">// Prints true</span></code> <button class="copy-button">copy</button></pre> 4691cb0ef41Sopenharmony_ci<h4><code>abortController.abort([reason])</code><span><a class="mark" href="#abortcontrollerabortreason" id="abortcontrollerabortreason">#</a></span><a aria-hidden="true" class="legacy" id="globals_abortcontroller_abort_reason"></a></h4> 4701cb0ef41Sopenharmony_ci<div class="api_metadata"> 4711cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 4721cb0ef41Sopenharmony_ci<table> 4731cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 4741cb0ef41Sopenharmony_ci<tr><td>v17.2.0, v16.14.0</td> 4751cb0ef41Sopenharmony_ci<td><p>Added the new optional reason argument.</p></td></tr> 4761cb0ef41Sopenharmony_ci<tr><td>v15.0.0, v14.17.0</td> 4771cb0ef41Sopenharmony_ci<td><p><span>Added in: v15.0.0, v14.17.0</span></p></td></tr> 4781cb0ef41Sopenharmony_ci</tbody></table> 4791cb0ef41Sopenharmony_ci</details> 4801cb0ef41Sopenharmony_ci</div> 4811cb0ef41Sopenharmony_ci<ul> 4821cb0ef41Sopenharmony_ci<li><code>reason</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Data_types" class="type"><any></a> An optional reason, retrievable on the <code>AbortSignal</code>'s 4831cb0ef41Sopenharmony_ci<code>reason</code> property.</li> 4841cb0ef41Sopenharmony_ci</ul> 4851cb0ef41Sopenharmony_ci<p>Triggers the abort signal, causing the <code>abortController.signal</code> to emit 4861cb0ef41Sopenharmony_cithe <code>'abort'</code> event.</p> 4871cb0ef41Sopenharmony_ci<h4><code>abortController.signal</code><span><a class="mark" href="#abortcontrollersignal" id="abortcontrollersignal">#</a></span><a aria-hidden="true" class="legacy" id="globals_abortcontroller_signal"></a></h4> 4881cb0ef41Sopenharmony_ci<div class="api_metadata"> 4891cb0ef41Sopenharmony_ci<span>Added in: v15.0.0, v14.17.0</span> 4901cb0ef41Sopenharmony_ci</div> 4911cb0ef41Sopenharmony_ci<ul> 4921cb0ef41Sopenharmony_ci<li>Type: <a href="globals.html#class-abortsignal" class="type"><AbortSignal></a></li> 4931cb0ef41Sopenharmony_ci</ul> 4941cb0ef41Sopenharmony_ci<h4>Class: <code>AbortSignal</code><span><a class="mark" href="#class-abortsignal" id="class-abortsignal">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_abortsignal"></a></h4> 4951cb0ef41Sopenharmony_ci<div class="api_metadata"> 4961cb0ef41Sopenharmony_ci<span>Added in: v15.0.0, v14.17.0</span> 4971cb0ef41Sopenharmony_ci</div> 4981cb0ef41Sopenharmony_ci<ul> 4991cb0ef41Sopenharmony_ci<li>Extends: <a href="events.html#class-eventtarget" class="type"><EventTarget></a></li> 5001cb0ef41Sopenharmony_ci</ul> 5011cb0ef41Sopenharmony_ci<p>The <code>AbortSignal</code> is used to notify observers when the 5021cb0ef41Sopenharmony_ci<code>abortController.abort()</code> method is called.</p> 5031cb0ef41Sopenharmony_ci<h5>Static method: <code>AbortSignal.abort([reason])</code><span><a class="mark" href="#static-method-abortsignalabortreason" id="static-method-abortsignalabortreason">#</a></span><a aria-hidden="true" class="legacy" id="globals_static_method_abortsignal_abort_reason"></a></h5> 5041cb0ef41Sopenharmony_ci<div class="api_metadata"> 5051cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 5061cb0ef41Sopenharmony_ci<table> 5071cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 5081cb0ef41Sopenharmony_ci<tr><td>v17.2.0, v16.14.0</td> 5091cb0ef41Sopenharmony_ci<td><p>Added the new optional reason argument.</p></td></tr> 5101cb0ef41Sopenharmony_ci<tr><td>v15.12.0, v14.17.0</td> 5111cb0ef41Sopenharmony_ci<td><p><span>Added in: v15.12.0, v14.17.0</span></p></td></tr> 5121cb0ef41Sopenharmony_ci</tbody></table> 5131cb0ef41Sopenharmony_ci</details> 5141cb0ef41Sopenharmony_ci</div> 5151cb0ef41Sopenharmony_ci<ul> 5161cb0ef41Sopenharmony_ci<li><code>reason</code>: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Data_types" class="type"><any></a></li> 5171cb0ef41Sopenharmony_ci<li>Returns: <a href="globals.html#class-abortsignal" class="type"><AbortSignal></a></li> 5181cb0ef41Sopenharmony_ci</ul> 5191cb0ef41Sopenharmony_ci<p>Returns a new already aborted <code>AbortSignal</code>.</p> 5201cb0ef41Sopenharmony_ci<h5>Static method: <code>AbortSignal.timeout(delay)</code><span><a class="mark" href="#static-method-abortsignaltimeoutdelay" id="static-method-abortsignaltimeoutdelay">#</a></span><a aria-hidden="true" class="legacy" id="globals_static_method_abortsignal_timeout_delay"></a></h5> 5211cb0ef41Sopenharmony_ci<div class="api_metadata"> 5221cb0ef41Sopenharmony_ci<span>Added in: v17.3.0, v16.14.0</span> 5231cb0ef41Sopenharmony_ci</div> 5241cb0ef41Sopenharmony_ci<ul> 5251cb0ef41Sopenharmony_ci<li><code>delay</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type" class="type"><number></a> The number of milliseconds to wait before triggering 5261cb0ef41Sopenharmony_cithe AbortSignal.</li> 5271cb0ef41Sopenharmony_ci</ul> 5281cb0ef41Sopenharmony_ci<p>Returns a new <code>AbortSignal</code> which will be aborted in <code>delay</code> milliseconds.</p> 5291cb0ef41Sopenharmony_ci<h5>Static method: <code>AbortSignal.any(signals)</code><span><a class="mark" href="#static-method-abortsignalanysignals" id="static-method-abortsignalanysignals">#</a></span><a aria-hidden="true" class="legacy" id="globals_static_method_abortsignal_any_signals"></a></h5> 5301cb0ef41Sopenharmony_ci<div class="api_metadata"> 5311cb0ef41Sopenharmony_ci<span>Added in: v18.17.0</span> 5321cb0ef41Sopenharmony_ci</div> 5331cb0ef41Sopenharmony_ci<ul> 5341cb0ef41Sopenharmony_ci<li><code>signals</code> <a href="globals.html#class-abortsignal" class="type"><AbortSignal[]></a> The <code>AbortSignal</code>s of which to compose a new <code>AbortSignal</code>.</li> 5351cb0ef41Sopenharmony_ci</ul> 5361cb0ef41Sopenharmony_ci<p>Returns a new <code>AbortSignal</code> which will be aborted if any of the provided 5371cb0ef41Sopenharmony_cisignals are aborted. Its <a href="#abortsignalreason"><code>abortSignal.reason</code></a> will be set to whichever 5381cb0ef41Sopenharmony_cione of the <code>signals</code> caused it to be aborted.</p> 5391cb0ef41Sopenharmony_ci<h5>Event: <code>'abort'</code><span><a class="mark" href="#event-abort" id="event-abort">#</a></span><a aria-hidden="true" class="legacy" id="globals_event_abort"></a></h5> 5401cb0ef41Sopenharmony_ci<div class="api_metadata"> 5411cb0ef41Sopenharmony_ci<span>Added in: v15.0.0, v14.17.0</span> 5421cb0ef41Sopenharmony_ci</div> 5431cb0ef41Sopenharmony_ci<p>The <code>'abort'</code> event is emitted when the <code>abortController.abort()</code> method 5441cb0ef41Sopenharmony_ciis called. The callback is invoked with a single object argument with a 5451cb0ef41Sopenharmony_cisingle <code>type</code> property set to <code>'abort'</code>:</p> 5461cb0ef41Sopenharmony_ci<pre><code class="language-js"><span class="hljs-keyword">const</span> ac = <span class="hljs-keyword">new</span> <span class="hljs-title class_">AbortController</span>(); 5471cb0ef41Sopenharmony_ci 5481cb0ef41Sopenharmony_ci<span class="hljs-comment">// Use either the onabort property...</span> 5491cb0ef41Sopenharmony_ciac.<span class="hljs-property">signal</span>.<span class="hljs-property">onabort</span> = <span class="hljs-function">() =></span> <span class="hljs-variable language_">console</span>.<span class="hljs-title function_">log</span>(<span class="hljs-string">'aborted!'</span>); 5501cb0ef41Sopenharmony_ci 5511cb0ef41Sopenharmony_ci<span class="hljs-comment">// Or the EventTarget API...</span> 5521cb0ef41Sopenharmony_ciac.<span class="hljs-property">signal</span>.<span class="hljs-title function_">addEventListener</span>(<span class="hljs-string">'abort'</span>, <span class="hljs-function">(<span class="hljs-params">event</span>) =></span> { 5531cb0ef41Sopenharmony_ci <span class="hljs-variable language_">console</span>.<span class="hljs-title function_">log</span>(event.<span class="hljs-property">type</span>); <span class="hljs-comment">// Prints 'abort'</span> 5541cb0ef41Sopenharmony_ci}, { <span class="hljs-attr">once</span>: <span class="hljs-literal">true</span> }); 5551cb0ef41Sopenharmony_ci 5561cb0ef41Sopenharmony_ciac.<span class="hljs-title function_">abort</span>();</code> <button class="copy-button">copy</button></pre> 5571cb0ef41Sopenharmony_ci<p>The <code>AbortController</code> with which the <code>AbortSignal</code> is associated will only 5581cb0ef41Sopenharmony_ciever trigger the <code>'abort'</code> event once. We recommended that code check 5591cb0ef41Sopenharmony_cithat the <code>abortSignal.aborted</code> attribute is <code>false</code> before adding an <code>'abort'</code> 5601cb0ef41Sopenharmony_cievent listener.</p> 5611cb0ef41Sopenharmony_ci<p>Any event listeners attached to the <code>AbortSignal</code> should use the 5621cb0ef41Sopenharmony_ci<code>{ once: true }</code> option (or, if using the <code>EventEmitter</code> APIs to attach a 5631cb0ef41Sopenharmony_cilistener, use the <code>once()</code> method) to ensure that the event listener is 5641cb0ef41Sopenharmony_ciremoved as soon as the <code>'abort'</code> event is handled. Failure to do so may 5651cb0ef41Sopenharmony_ciresult in memory leaks.</p> 5661cb0ef41Sopenharmony_ci<h5><code>abortSignal.aborted</code><span><a class="mark" href="#abortsignalaborted" id="abortsignalaborted">#</a></span><a aria-hidden="true" class="legacy" id="globals_abortsignal_aborted"></a></h5> 5671cb0ef41Sopenharmony_ci<div class="api_metadata"> 5681cb0ef41Sopenharmony_ci<span>Added in: v15.0.0, v14.17.0</span> 5691cb0ef41Sopenharmony_ci</div> 5701cb0ef41Sopenharmony_ci<ul> 5711cb0ef41Sopenharmony_ci<li>Type: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type" class="type"><boolean></a> True after the <code>AbortController</code> has been aborted.</li> 5721cb0ef41Sopenharmony_ci</ul> 5731cb0ef41Sopenharmony_ci<h5><code>abortSignal.onabort</code><span><a class="mark" href="#abortsignalonabort" id="abortsignalonabort">#</a></span><a aria-hidden="true" class="legacy" id="globals_abortsignal_onabort"></a></h5> 5741cb0ef41Sopenharmony_ci<div class="api_metadata"> 5751cb0ef41Sopenharmony_ci<span>Added in: v15.0.0, v14.17.0</span> 5761cb0ef41Sopenharmony_ci</div> 5771cb0ef41Sopenharmony_ci<ul> 5781cb0ef41Sopenharmony_ci<li>Type: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function" class="type"><Function></a></li> 5791cb0ef41Sopenharmony_ci</ul> 5801cb0ef41Sopenharmony_ci<p>An optional callback function that may be set by user code to be notified 5811cb0ef41Sopenharmony_ciwhen the <code>abortController.abort()</code> function has been called.</p> 5821cb0ef41Sopenharmony_ci<h5><code>abortSignal.reason</code><span><a class="mark" href="#abortsignalreason" id="abortsignalreason">#</a></span><a aria-hidden="true" class="legacy" id="globals_abortsignal_reason"></a></h5> 5831cb0ef41Sopenharmony_ci<div class="api_metadata"> 5841cb0ef41Sopenharmony_ci<span>Added in: v17.2.0, v16.14.0</span> 5851cb0ef41Sopenharmony_ci</div> 5861cb0ef41Sopenharmony_ci<ul> 5871cb0ef41Sopenharmony_ci<li>Type: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Data_types" class="type"><any></a></li> 5881cb0ef41Sopenharmony_ci</ul> 5891cb0ef41Sopenharmony_ci<p>An optional reason specified when the <code>AbortSignal</code> was triggered.</p> 5901cb0ef41Sopenharmony_ci<pre><code class="language-js"><span class="hljs-keyword">const</span> ac = <span class="hljs-keyword">new</span> <span class="hljs-title class_">AbortController</span>(); 5911cb0ef41Sopenharmony_ciac.<span class="hljs-title function_">abort</span>(<span class="hljs-keyword">new</span> <span class="hljs-title class_">Error</span>(<span class="hljs-string">'boom!'</span>)); 5921cb0ef41Sopenharmony_ci<span class="hljs-variable language_">console</span>.<span class="hljs-title function_">log</span>(ac.<span class="hljs-property">signal</span>.<span class="hljs-property">reason</span>); <span class="hljs-comment">// Error: boom!</span></code> <button class="copy-button">copy</button></pre> 5931cb0ef41Sopenharmony_ci<h5><code>abortSignal.throwIfAborted()</code><span><a class="mark" href="#abortsignalthrowifaborted" id="abortsignalthrowifaborted">#</a></span><a aria-hidden="true" class="legacy" id="globals_abortsignal_throwifaborted"></a></h5> 5941cb0ef41Sopenharmony_ci<div class="api_metadata"> 5951cb0ef41Sopenharmony_ci<span>Added in: v17.3.0</span> 5961cb0ef41Sopenharmony_ci</div> 5971cb0ef41Sopenharmony_ci<p>If <code>abortSignal.aborted</code> is <code>true</code>, throws <code>abortSignal.reason</code>.</p> 5981cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>Blob</code><span><a class="mark" href="#class-blob" id="class-blob">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_blob"></a></h3> 5991cb0ef41Sopenharmony_ci<div class="api_metadata"> 6001cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 6011cb0ef41Sopenharmony_ci</div> 6021cb0ef41Sopenharmony_ci 6031cb0ef41Sopenharmony_ci<p>See <a href="buffer.html#class-blob" class="type"><Blob></a>.</p> 6041cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>Buffer</code><span><a class="mark" href="#class-buffer" id="class-buffer">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_buffer"></a></h3> 6051cb0ef41Sopenharmony_ci<div class="api_metadata"> 6061cb0ef41Sopenharmony_ci<span>Added in: v0.1.103</span> 6071cb0ef41Sopenharmony_ci</div> 6081cb0ef41Sopenharmony_ci 6091cb0ef41Sopenharmony_ci<ul> 6101cb0ef41Sopenharmony_ci<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function" class="type"><Function></a></li> 6111cb0ef41Sopenharmony_ci</ul> 6121cb0ef41Sopenharmony_ci<p>Used to handle binary data. See the <a href="buffer.html">buffer section</a>.</p> 6131cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>ByteLengthQueuingStrategy</code><span><a class="mark" href="#class-bytelengthqueuingstrategy" id="class-bytelengthqueuingstrategy">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_bytelengthqueuingstrategy"></a></h3> 6141cb0ef41Sopenharmony_ci<div class="api_metadata"> 6151cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 6161cb0ef41Sopenharmony_ci</div> 6171cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 6181cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-bytelengthqueuingstrategy"><code>ByteLengthQueuingStrategy</code></a>.</p> 6191cb0ef41Sopenharmony_ci</section><section><h3><code>__dirname</code><span><a class="mark" href="#__dirname" id="__dirname">#</a></span><a aria-hidden="true" class="legacy" id="globals_dirname"></a></h3> 6201cb0ef41Sopenharmony_ci<p>This variable may appear to be global but is not. See <a href="modules.html#__dirname"><code>__dirname</code></a>.</p> 6211cb0ef41Sopenharmony_ci</section><section><h3><code>__filename</code><span><a class="mark" href="#__filename" id="__filename">#</a></span><a aria-hidden="true" class="legacy" id="globals_filename"></a></h3> 6221cb0ef41Sopenharmony_ci<p>This variable may appear to be global but is not. See <a href="modules.html#__filename"><code>__filename</code></a>.</p> 6231cb0ef41Sopenharmony_ci</section><section><h3><code>atob(data)</code><span><a class="mark" href="#atobdata" id="atobdata">#</a></span><a aria-hidden="true" class="legacy" id="globals_atob_data"></a></h3> 6241cb0ef41Sopenharmony_ci<div class="api_metadata"> 6251cb0ef41Sopenharmony_ci<span>Added in: v16.0.0</span> 6261cb0ef41Sopenharmony_ci</div> 6271cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_3"><a href="documentation.html#stability-index">Stability: 3</a> - Legacy. Use <code>Buffer.from(data, 'base64')</code> instead.</div><p></p> 6281cb0ef41Sopenharmony_ci<p>Global alias for <a href="buffer.html#bufferatobdata"><code>buffer.atob()</code></a>.</p> 6291cb0ef41Sopenharmony_ci</section><section><h3><code>BroadcastChannel</code><span><a class="mark" href="#broadcastchannel" id="broadcastchannel">#</a></span><a aria-hidden="true" class="legacy" id="globals_broadcastchannel"></a></h3> 6301cb0ef41Sopenharmony_ci<div class="api_metadata"> 6311cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 6321cb0ef41Sopenharmony_ci</div> 6331cb0ef41Sopenharmony_ci<p>See <a href="worker_threads.html#class-broadcastchannel-extends-eventtarget" class="type"><BroadcastChannel></a>.</p> 6341cb0ef41Sopenharmony_ci</section><section><h3><code>btoa(data)</code><span><a class="mark" href="#btoadata" id="btoadata">#</a></span><a aria-hidden="true" class="legacy" id="globals_btoa_data"></a></h3> 6351cb0ef41Sopenharmony_ci<div class="api_metadata"> 6361cb0ef41Sopenharmony_ci<span>Added in: v16.0.0</span> 6371cb0ef41Sopenharmony_ci</div> 6381cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_3"><a href="documentation.html#stability-index">Stability: 3</a> - Legacy. Use <code>buf.toString('base64')</code> instead.</div><p></p> 6391cb0ef41Sopenharmony_ci<p>Global alias for <a href="buffer.html#bufferbtoadata"><code>buffer.btoa()</code></a>.</p> 6401cb0ef41Sopenharmony_ci</section><section><h3><code>clearImmediate(immediateObject)</code><span><a class="mark" href="#clearimmediateimmediateobject" id="clearimmediateimmediateobject">#</a></span><a aria-hidden="true" class="legacy" id="globals_clearimmediate_immediateobject"></a></h3> 6411cb0ef41Sopenharmony_ci<div class="api_metadata"> 6421cb0ef41Sopenharmony_ci<span>Added in: v0.9.1</span> 6431cb0ef41Sopenharmony_ci</div> 6441cb0ef41Sopenharmony_ci 6451cb0ef41Sopenharmony_ci<p><a href="timers.html#clearimmediateimmediate"><code>clearImmediate</code></a> is described in the <a href="timers.html">timers</a> section.</p> 6461cb0ef41Sopenharmony_ci</section><section><h3><code>clearInterval(intervalObject)</code><span><a class="mark" href="#clearintervalintervalobject" id="clearintervalintervalobject">#</a></span><a aria-hidden="true" class="legacy" id="globals_clearinterval_intervalobject"></a></h3> 6471cb0ef41Sopenharmony_ci<div class="api_metadata"> 6481cb0ef41Sopenharmony_ci<span>Added in: v0.0.1</span> 6491cb0ef41Sopenharmony_ci</div> 6501cb0ef41Sopenharmony_ci 6511cb0ef41Sopenharmony_ci<p><a href="timers.html#clearintervaltimeout"><code>clearInterval</code></a> is described in the <a href="timers.html">timers</a> section.</p> 6521cb0ef41Sopenharmony_ci</section><section><h3><code>clearTimeout(timeoutObject)</code><span><a class="mark" href="#cleartimeouttimeoutobject" id="cleartimeouttimeoutobject">#</a></span><a aria-hidden="true" class="legacy" id="globals_cleartimeout_timeoutobject"></a></h3> 6531cb0ef41Sopenharmony_ci<div class="api_metadata"> 6541cb0ef41Sopenharmony_ci<span>Added in: v0.0.1</span> 6551cb0ef41Sopenharmony_ci</div> 6561cb0ef41Sopenharmony_ci 6571cb0ef41Sopenharmony_ci<p><a href="timers.html#cleartimeouttimeout"><code>clearTimeout</code></a> is described in the <a href="timers.html">timers</a> section.</p> 6581cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>CompressionStream</code><span><a class="mark" href="#class-compressionstream" id="class-compressionstream">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_compressionstream"></a></h3> 6591cb0ef41Sopenharmony_ci<div class="api_metadata"> 6601cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 6611cb0ef41Sopenharmony_ci</div> 6621cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 6631cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-compressionstream"><code>CompressionStream</code></a>.</p> 6641cb0ef41Sopenharmony_ci</section><section><h3><code>console</code><span><a class="mark" href="#console" id="console">#</a></span><a aria-hidden="true" class="legacy" id="globals_console"></a></h3> 6651cb0ef41Sopenharmony_ci<div class="api_metadata"> 6661cb0ef41Sopenharmony_ci<span>Added in: v0.1.100</span> 6671cb0ef41Sopenharmony_ci</div> 6681cb0ef41Sopenharmony_ci 6691cb0ef41Sopenharmony_ci<ul> 6701cb0ef41Sopenharmony_ci<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a></li> 6711cb0ef41Sopenharmony_ci</ul> 6721cb0ef41Sopenharmony_ci<p>Used to print to stdout and stderr. See the <a href="console.html"><code>console</code></a> section.</p> 6731cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>CountQueuingStrategy</code><span><a class="mark" href="#class-countqueuingstrategy" id="class-countqueuingstrategy">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_countqueuingstrategy"></a></h3> 6741cb0ef41Sopenharmony_ci<div class="api_metadata"> 6751cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 6761cb0ef41Sopenharmony_ci</div> 6771cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 6781cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-countqueuingstrategy"><code>CountQueuingStrategy</code></a>.</p> 6791cb0ef41Sopenharmony_ci</section><section><h3><code>Crypto</code><span><a class="mark" href="#crypto" id="crypto">#</a></span><a aria-hidden="true" class="legacy" id="globals_crypto"></a></h3> 6801cb0ef41Sopenharmony_ci<div class="api_metadata"> 6811cb0ef41Sopenharmony_ci<span>Added in: v17.6.0</span> 6821cb0ef41Sopenharmony_ci</div> 6831cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Enable this API with the 6841cb0ef41Sopenharmony_ci<a href="cli.html#--experimental-global-webcrypto"><code>--experimental-global-webcrypto</code></a> CLI flag.</div><p></p> 6851cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webcrypto.html#class-crypto" class="type"><Crypto></a>. This global is available 6861cb0ef41Sopenharmony_cionly if the Node.js binary was compiled with including support for the 6871cb0ef41Sopenharmony_ci<code>node:crypto</code> module.</p> 6881cb0ef41Sopenharmony_ci</section><section><h3><code>crypto</code><span><a class="mark" href="#crypto_1" id="crypto_1">#</a></span><a aria-hidden="true" class="legacy" id="globals_crypto_1"></a></h3> 6891cb0ef41Sopenharmony_ci<div class="api_metadata"> 6901cb0ef41Sopenharmony_ci<span>Added in: v17.6.0</span> 6911cb0ef41Sopenharmony_ci</div> 6921cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Enable this API with the 6931cb0ef41Sopenharmony_ci<a href="cli.html#--experimental-global-webcrypto"><code>--experimental-global-webcrypto</code></a> CLI flag.</div><p></p> 6941cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of the <a href="webcrypto.html">Web Crypto API</a>.</p> 6951cb0ef41Sopenharmony_ci</section><section><h3><code>CryptoKey</code><span><a class="mark" href="#cryptokey" id="cryptokey">#</a></span><a aria-hidden="true" class="legacy" id="globals_cryptokey"></a></h3> 6961cb0ef41Sopenharmony_ci<div class="api_metadata"> 6971cb0ef41Sopenharmony_ci<span>Added in: v17.6.0</span> 6981cb0ef41Sopenharmony_ci</div> 6991cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Enable this API with the 7001cb0ef41Sopenharmony_ci<a href="cli.html#--experimental-global-webcrypto"><code>--experimental-global-webcrypto</code></a> CLI flag.</div><p></p> 7011cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webcrypto.html#class-cryptokey" class="type"><CryptoKey></a>. This global is available 7021cb0ef41Sopenharmony_cionly if the Node.js binary was compiled with including support for the 7031cb0ef41Sopenharmony_ci<code>node:crypto</code> module.</p> 7041cb0ef41Sopenharmony_ci</section><section><h3><code>CustomEvent</code><span><a class="mark" href="#customevent" id="customevent">#</a></span><a aria-hidden="true" class="legacy" id="globals_customevent"></a></h3> 7051cb0ef41Sopenharmony_ci<div class="api_metadata"> 7061cb0ef41Sopenharmony_ci<span>Added in: v18.7.0</span> 7071cb0ef41Sopenharmony_ci</div> 7081cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Enable this API with the 7091cb0ef41Sopenharmony_ci<a href="cli.html#--experimental-global-customevent"><code>--experimental-global-customevent</code></a> CLI flag.</div><p></p> 7101cb0ef41Sopenharmony_ci 7111cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of the <a href="https://dom.spec.whatwg.org/#customevent"><code>CustomEvent</code> Web API</a>.</p> 7121cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>DecompressionStream</code><span><a class="mark" href="#class-decompressionstream" id="class-decompressionstream">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_decompressionstream"></a></h3> 7131cb0ef41Sopenharmony_ci<div class="api_metadata"> 7141cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 7151cb0ef41Sopenharmony_ci</div> 7161cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 7171cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-decompressionstream"><code>DecompressionStream</code></a>.</p> 7181cb0ef41Sopenharmony_ci</section><section><h3><code>Event</code><span><a class="mark" href="#event" id="event">#</a></span><a aria-hidden="true" class="legacy" id="globals_event"></a></h3> 7191cb0ef41Sopenharmony_ci<div class="api_metadata"> 7201cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 7211cb0ef41Sopenharmony_ci<table> 7221cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 7231cb0ef41Sopenharmony_ci<tr><td>v15.4.0</td> 7241cb0ef41Sopenharmony_ci<td><p>No longer experimental.</p></td></tr> 7251cb0ef41Sopenharmony_ci<tr><td>v15.0.0</td> 7261cb0ef41Sopenharmony_ci<td><p><span>Added in: v15.0.0</span></p></td></tr> 7271cb0ef41Sopenharmony_ci</tbody></table> 7281cb0ef41Sopenharmony_ci</details> 7291cb0ef41Sopenharmony_ci</div> 7301cb0ef41Sopenharmony_ci 7311cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of the <code>Event</code> class. See 7321cb0ef41Sopenharmony_ci<a href="events.html#eventtarget-and-event-api"><code>EventTarget</code> and <code>Event</code> API</a> for more details.</p> 7331cb0ef41Sopenharmony_ci</section><section><h3><code>EventTarget</code><span><a class="mark" href="#eventtarget" id="eventtarget">#</a></span><a aria-hidden="true" class="legacy" id="globals_eventtarget"></a></h3> 7341cb0ef41Sopenharmony_ci<div class="api_metadata"> 7351cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 7361cb0ef41Sopenharmony_ci<table> 7371cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 7381cb0ef41Sopenharmony_ci<tr><td>v15.4.0</td> 7391cb0ef41Sopenharmony_ci<td><p>No longer experimental.</p></td></tr> 7401cb0ef41Sopenharmony_ci<tr><td>v15.0.0</td> 7411cb0ef41Sopenharmony_ci<td><p><span>Added in: v15.0.0</span></p></td></tr> 7421cb0ef41Sopenharmony_ci</tbody></table> 7431cb0ef41Sopenharmony_ci</details> 7441cb0ef41Sopenharmony_ci</div> 7451cb0ef41Sopenharmony_ci 7461cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of the <code>EventTarget</code> class. See 7471cb0ef41Sopenharmony_ci<a href="events.html#eventtarget-and-event-api"><code>EventTarget</code> and <code>Event</code> API</a> for more details.</p> 7481cb0ef41Sopenharmony_ci</section><section><h3><code>exports</code><span><a class="mark" href="#exports" id="exports">#</a></span><a aria-hidden="true" class="legacy" id="globals_exports"></a></h3> 7491cb0ef41Sopenharmony_ci<p>This variable may appear to be global but is not. See <a href="modules.html#exports"><code>exports</code></a>.</p> 7501cb0ef41Sopenharmony_ci</section><section><h3><code>fetch</code><span><a class="mark" href="#fetch" id="fetch">#</a></span><a aria-hidden="true" class="legacy" id="globals_fetch"></a></h3> 7511cb0ef41Sopenharmony_ci<div class="api_metadata"> 7521cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 7531cb0ef41Sopenharmony_ci<table> 7541cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 7551cb0ef41Sopenharmony_ci<tr><td>v18.0.0</td> 7561cb0ef41Sopenharmony_ci<td><p>No longer behind <code>--experimental-fetch</code> CLI flag.</p></td></tr> 7571cb0ef41Sopenharmony_ci<tr><td>v17.5.0</td> 7581cb0ef41Sopenharmony_ci<td><p><span>Added in: v17.5.0</span></p></td></tr> 7591cb0ef41Sopenharmony_ci</tbody></table> 7601cb0ef41Sopenharmony_ci</details> 7611cb0ef41Sopenharmony_ci</div> 7621cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Disable this API with the <a href="cli.html#--no-experimental-fetch"><code>--no-experimental-fetch</code></a> 7631cb0ef41Sopenharmony_ciCLI flag.</div><p></p> 7641cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of the <a href="https://developer.mozilla.org/en-US/docs/Web/API/fetch"><code>fetch()</code></a> function.</p> 7651cb0ef41Sopenharmony_ci</section><section><h3>Class <code>FormData</code><span><a class="mark" href="#class-formdata" id="class-formdata">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_formdata"></a></h3> 7661cb0ef41Sopenharmony_ci<div class="api_metadata"> 7671cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 7681cb0ef41Sopenharmony_ci<table> 7691cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 7701cb0ef41Sopenharmony_ci<tr><td>v18.0.0</td> 7711cb0ef41Sopenharmony_ci<td><p>No longer behind <code>--experimental-fetch</code> CLI flag.</p></td></tr> 7721cb0ef41Sopenharmony_ci<tr><td>v17.6.0</td> 7731cb0ef41Sopenharmony_ci<td><p><span>Added in: v17.6.0</span></p></td></tr> 7741cb0ef41Sopenharmony_ci</tbody></table> 7751cb0ef41Sopenharmony_ci</details> 7761cb0ef41Sopenharmony_ci</div> 7771cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Disable this API with the <a href="cli.html#--no-experimental-fetch"><code>--no-experimental-fetch</code></a> 7781cb0ef41Sopenharmony_ciCLI flag.</div><p></p> 7791cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="https://developer.mozilla.org/en-US/docs/Web/API/FormData" class="type"><FormData></a>.</p> 7801cb0ef41Sopenharmony_ci</section><section><h3><code>global</code><span><a class="mark" href="#global" id="global">#</a></span><a aria-hidden="true" class="legacy" id="globals_global"></a></h3> 7811cb0ef41Sopenharmony_ci<div class="api_metadata"> 7821cb0ef41Sopenharmony_ci<span>Added in: v0.1.27</span> 7831cb0ef41Sopenharmony_ci</div> 7841cb0ef41Sopenharmony_ci 7851cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_3"><a href="documentation.html#stability-index">Stability: 3</a> - Legacy. Use <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/globalThis"><code>globalThis</code></a> instead.</div><p></p> 7861cb0ef41Sopenharmony_ci<ul> 7871cb0ef41Sopenharmony_ci<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a> The global namespace object.</li> 7881cb0ef41Sopenharmony_ci</ul> 7891cb0ef41Sopenharmony_ci<p>In browsers, the top-level scope has traditionally been the global scope. This 7901cb0ef41Sopenharmony_cimeans that <code>var something</code> will define a new global variable, except within 7911cb0ef41Sopenharmony_ciECMAScript modules. In Node.js, this is different. The top-level scope is not 7921cb0ef41Sopenharmony_cithe global scope; <code>var something</code> inside a Node.js module will be local to that 7931cb0ef41Sopenharmony_cimodule, regardless of whether it is a <a href="modules.html">CommonJS module</a> or an 7941cb0ef41Sopenharmony_ci<a href="esm.html">ECMAScript module</a>.</p> 7951cb0ef41Sopenharmony_ci</section><section><h3>Class <code>Headers</code><span><a class="mark" href="#class-headers" id="class-headers">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_headers"></a></h3> 7961cb0ef41Sopenharmony_ci<div class="api_metadata"> 7971cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 7981cb0ef41Sopenharmony_ci<table> 7991cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 8001cb0ef41Sopenharmony_ci<tr><td>v18.0.0</td> 8011cb0ef41Sopenharmony_ci<td><p>No longer behind <code>--experimental-fetch</code> CLI flag.</p></td></tr> 8021cb0ef41Sopenharmony_ci<tr><td>v17.5.0</td> 8031cb0ef41Sopenharmony_ci<td><p><span>Added in: v17.5.0</span></p></td></tr> 8041cb0ef41Sopenharmony_ci</tbody></table> 8051cb0ef41Sopenharmony_ci</details> 8061cb0ef41Sopenharmony_ci</div> 8071cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Disable this API with the <a href="cli.html#--no-experimental-fetch"><code>--no-experimental-fetch</code></a> 8081cb0ef41Sopenharmony_ciCLI flag.</div><p></p> 8091cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="https://developer.mozilla.org/en-US/docs/Web/API/Headers" class="type"><Headers></a>.</p> 8101cb0ef41Sopenharmony_ci</section><section><h3><code>MessageChannel</code><span><a class="mark" href="#messagechannel" id="messagechannel">#</a></span><a aria-hidden="true" class="legacy" id="globals_messagechannel"></a></h3> 8111cb0ef41Sopenharmony_ci<div class="api_metadata"> 8121cb0ef41Sopenharmony_ci<span>Added in: v15.0.0</span> 8131cb0ef41Sopenharmony_ci</div> 8141cb0ef41Sopenharmony_ci 8151cb0ef41Sopenharmony_ci<p>The <code>MessageChannel</code> class. See <a href="worker_threads.html#class-messagechannel"><code>MessageChannel</code></a> for more details.</p> 8161cb0ef41Sopenharmony_ci</section><section><h3><code>MessageEvent</code><span><a class="mark" href="#messageevent" id="messageevent">#</a></span><a aria-hidden="true" class="legacy" id="globals_messageevent"></a></h3> 8171cb0ef41Sopenharmony_ci<div class="api_metadata"> 8181cb0ef41Sopenharmony_ci<span>Added in: v15.0.0</span> 8191cb0ef41Sopenharmony_ci</div> 8201cb0ef41Sopenharmony_ci 8211cb0ef41Sopenharmony_ci<p>The <code>MessageEvent</code> class. See <a href="https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent/MessageEvent"><code>MessageEvent</code></a> for more details.</p> 8221cb0ef41Sopenharmony_ci</section><section><h3><code>MessagePort</code><span><a class="mark" href="#messageport" id="messageport">#</a></span><a aria-hidden="true" class="legacy" id="globals_messageport"></a></h3> 8231cb0ef41Sopenharmony_ci<div class="api_metadata"> 8241cb0ef41Sopenharmony_ci<span>Added in: v15.0.0</span> 8251cb0ef41Sopenharmony_ci</div> 8261cb0ef41Sopenharmony_ci 8271cb0ef41Sopenharmony_ci<p>The <code>MessagePort</code> class. See <a href="worker_threads.html#class-messageport"><code>MessagePort</code></a> for more details.</p> 8281cb0ef41Sopenharmony_ci</section><section><h3><code>module</code><span><a class="mark" href="#module" id="module">#</a></span><a aria-hidden="true" class="legacy" id="globals_module"></a></h3> 8291cb0ef41Sopenharmony_ci<p>This variable may appear to be global but is not. See <a href="modules.html#module"><code>module</code></a>.</p> 8301cb0ef41Sopenharmony_ci</section><section><h3><code>performance</code><span><a class="mark" href="#performance" id="performance">#</a></span><a aria-hidden="true" class="legacy" id="globals_performance"></a></h3> 8311cb0ef41Sopenharmony_ci<div class="api_metadata"> 8321cb0ef41Sopenharmony_ci<span>Added in: v16.0.0</span> 8331cb0ef41Sopenharmony_ci</div> 8341cb0ef41Sopenharmony_ci<p>The <a href="perf_hooks.html#perf_hooksperformance"><code>perf_hooks.performance</code></a> object.</p> 8351cb0ef41Sopenharmony_ci</section><section><h3><code>process</code><span><a class="mark" href="#process" id="process">#</a></span><a aria-hidden="true" class="legacy" id="globals_process"></a></h3> 8361cb0ef41Sopenharmony_ci<div class="api_metadata"> 8371cb0ef41Sopenharmony_ci<span>Added in: v0.1.7</span> 8381cb0ef41Sopenharmony_ci</div> 8391cb0ef41Sopenharmony_ci 8401cb0ef41Sopenharmony_ci<ul> 8411cb0ef41Sopenharmony_ci<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a></li> 8421cb0ef41Sopenharmony_ci</ul> 8431cb0ef41Sopenharmony_ci<p>The process object. See the <a href="process.html#process"><code>process</code> object</a> section.</p> 8441cb0ef41Sopenharmony_ci</section><section><h3><code>queueMicrotask(callback)</code><span><a class="mark" href="#queuemicrotaskcallback" id="queuemicrotaskcallback">#</a></span><a aria-hidden="true" class="legacy" id="globals_queuemicrotask_callback"></a></h3> 8451cb0ef41Sopenharmony_ci<div class="api_metadata"> 8461cb0ef41Sopenharmony_ci<span>Added in: v11.0.0</span> 8471cb0ef41Sopenharmony_ci</div> 8481cb0ef41Sopenharmony_ci 8491cb0ef41Sopenharmony_ci<ul> 8501cb0ef41Sopenharmony_ci<li><code>callback</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function" class="type"><Function></a> Function to be queued.</li> 8511cb0ef41Sopenharmony_ci</ul> 8521cb0ef41Sopenharmony_ci<p>The <code>queueMicrotask()</code> method queues a microtask to invoke <code>callback</code>. If 8531cb0ef41Sopenharmony_ci<code>callback</code> throws an exception, the <a href="process.html#process"><code>process</code> object</a> <code>'uncaughtException'</code> 8541cb0ef41Sopenharmony_cievent will be emitted.</p> 8551cb0ef41Sopenharmony_ci<p>The microtask queue is managed by V8 and may be used in a similar manner to 8561cb0ef41Sopenharmony_cithe <a href="process.html#processnexttickcallback-args"><code>process.nextTick()</code></a> queue, which is managed by Node.js. The 8571cb0ef41Sopenharmony_ci<code>process.nextTick()</code> queue is always processed before the microtask queue 8581cb0ef41Sopenharmony_ciwithin each turn of the Node.js event loop.</p> 8591cb0ef41Sopenharmony_ci<pre><code class="language-js"><span class="hljs-comment">// Here, `queueMicrotask()` is used to ensure the 'load' event is always</span> 8601cb0ef41Sopenharmony_ci<span class="hljs-comment">// emitted asynchronously, and therefore consistently. Using</span> 8611cb0ef41Sopenharmony_ci<span class="hljs-comment">// `process.nextTick()` here would result in the 'load' event always emitting</span> 8621cb0ef41Sopenharmony_ci<span class="hljs-comment">// before any other promise jobs.</span> 8631cb0ef41Sopenharmony_ci 8641cb0ef41Sopenharmony_ci<span class="hljs-title class_">DataHandler</span>.<span class="hljs-property"><span class="hljs-keyword">prototype</span></span>.<span class="hljs-property">load</span> = <span class="hljs-keyword">async</span> <span class="hljs-keyword">function</span> <span class="hljs-title function_">load</span>(<span class="hljs-params">key</span>) { 8651cb0ef41Sopenharmony_ci <span class="hljs-keyword">const</span> hit = <span class="hljs-variable language_">this</span>.<span class="hljs-property">_cache</span>.<span class="hljs-title function_">get</span>(key); 8661cb0ef41Sopenharmony_ci <span class="hljs-keyword">if</span> (hit !== <span class="hljs-literal">undefined</span>) { 8671cb0ef41Sopenharmony_ci <span class="hljs-title function_">queueMicrotask</span>(<span class="hljs-function">() =></span> { 8681cb0ef41Sopenharmony_ci <span class="hljs-variable language_">this</span>.<span class="hljs-title function_">emit</span>(<span class="hljs-string">'load'</span>, hit); 8691cb0ef41Sopenharmony_ci }); 8701cb0ef41Sopenharmony_ci <span class="hljs-keyword">return</span>; 8711cb0ef41Sopenharmony_ci } 8721cb0ef41Sopenharmony_ci 8731cb0ef41Sopenharmony_ci <span class="hljs-keyword">const</span> data = <span class="hljs-keyword">await</span> <span class="hljs-title function_">fetchData</span>(key); 8741cb0ef41Sopenharmony_ci <span class="hljs-variable language_">this</span>.<span class="hljs-property">_cache</span>.<span class="hljs-title function_">set</span>(key, data); 8751cb0ef41Sopenharmony_ci <span class="hljs-variable language_">this</span>.<span class="hljs-title function_">emit</span>(<span class="hljs-string">'load'</span>, data); 8761cb0ef41Sopenharmony_ci};</code> <button class="copy-button">copy</button></pre> 8771cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>ReadableByteStreamController</code><span><a class="mark" href="#class-readablebytestreamcontroller" id="class-readablebytestreamcontroller">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_readablebytestreamcontroller"></a></h3> 8781cb0ef41Sopenharmony_ci<div class="api_metadata"> 8791cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 8801cb0ef41Sopenharmony_ci</div> 8811cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 8821cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-readablebytestreamcontroller"><code>ReadableByteStreamController</code></a>.</p> 8831cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>ReadableStream</code><span><a class="mark" href="#class-readablestream" id="class-readablestream">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_readablestream"></a></h3> 8841cb0ef41Sopenharmony_ci<div class="api_metadata"> 8851cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 8861cb0ef41Sopenharmony_ci</div> 8871cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 8881cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-readablestream"><code>ReadableStream</code></a>.</p> 8891cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>ReadableStreamBYOBReader</code><span><a class="mark" href="#class-readablestreambyobreader" id="class-readablestreambyobreader">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_readablestreambyobreader"></a></h3> 8901cb0ef41Sopenharmony_ci<div class="api_metadata"> 8911cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 8921cb0ef41Sopenharmony_ci</div> 8931cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 8941cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-readablestreambyobreader"><code>ReadableStreamBYOBReader</code></a>.</p> 8951cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>ReadableStreamBYOBRequest</code><span><a class="mark" href="#class-readablestreambyobrequest" id="class-readablestreambyobrequest">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_readablestreambyobrequest"></a></h3> 8961cb0ef41Sopenharmony_ci<div class="api_metadata"> 8971cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 8981cb0ef41Sopenharmony_ci</div> 8991cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 9001cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-readablestreambyobrequest"><code>ReadableStreamBYOBRequest</code></a>.</p> 9011cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>ReadableStreamDefaultController</code><span><a class="mark" href="#class-readablestreamdefaultcontroller" id="class-readablestreamdefaultcontroller">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_readablestreamdefaultcontroller"></a></h3> 9021cb0ef41Sopenharmony_ci<div class="api_metadata"> 9031cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 9041cb0ef41Sopenharmony_ci</div> 9051cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 9061cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-readablestreamdefaultcontroller"><code>ReadableStreamDefaultController</code></a>.</p> 9071cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>ReadableStreamDefaultReader</code><span><a class="mark" href="#class-readablestreamdefaultreader" id="class-readablestreamdefaultreader">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_readablestreamdefaultreader"></a></h3> 9081cb0ef41Sopenharmony_ci<div class="api_metadata"> 9091cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 9101cb0ef41Sopenharmony_ci</div> 9111cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 9121cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-readablestreamdefaultreader"><code>ReadableStreamDefaultReader</code></a>.</p> 9131cb0ef41Sopenharmony_ci</section><section><h3><code>require()</code><span><a class="mark" href="#require" id="require">#</a></span><a aria-hidden="true" class="legacy" id="globals_require"></a></h3> 9141cb0ef41Sopenharmony_ci<p>This variable may appear to be global but is not. See <a href="modules.html#requireid"><code>require()</code></a>.</p> 9151cb0ef41Sopenharmony_ci</section><section><h3><code>Response</code><span><a class="mark" href="#response" id="response">#</a></span><a aria-hidden="true" class="legacy" id="globals_response"></a></h3> 9161cb0ef41Sopenharmony_ci<div class="api_metadata"> 9171cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 9181cb0ef41Sopenharmony_ci<table> 9191cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 9201cb0ef41Sopenharmony_ci<tr><td>v18.0.0</td> 9211cb0ef41Sopenharmony_ci<td><p>No longer behind <code>--experimental-fetch</code> CLI flag.</p></td></tr> 9221cb0ef41Sopenharmony_ci<tr><td>v17.5.0</td> 9231cb0ef41Sopenharmony_ci<td><p><span>Added in: v17.5.0</span></p></td></tr> 9241cb0ef41Sopenharmony_ci</tbody></table> 9251cb0ef41Sopenharmony_ci</details> 9261cb0ef41Sopenharmony_ci</div> 9271cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Disable this API with the <a href="cli.html#--no-experimental-fetch"><code>--no-experimental-fetch</code></a> 9281cb0ef41Sopenharmony_ciCLI flag.</div><p></p> 9291cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="https://developer.mozilla.org/en-US/docs/Web/API/Response" class="type"><Response></a>.</p> 9301cb0ef41Sopenharmony_ci</section><section><h3><code>Request</code><span><a class="mark" href="#request" id="request">#</a></span><a aria-hidden="true" class="legacy" id="globals_request"></a></h3> 9311cb0ef41Sopenharmony_ci<div class="api_metadata"> 9321cb0ef41Sopenharmony_ci<details class="changelog"><summary>History</summary> 9331cb0ef41Sopenharmony_ci<table> 9341cb0ef41Sopenharmony_ci<tbody><tr><th>Version</th><th>Changes</th></tr> 9351cb0ef41Sopenharmony_ci<tr><td>v18.0.0</td> 9361cb0ef41Sopenharmony_ci<td><p>No longer behind <code>--experimental-fetch</code> CLI flag.</p></td></tr> 9371cb0ef41Sopenharmony_ci<tr><td>v17.5.0</td> 9381cb0ef41Sopenharmony_ci<td><p><span>Added in: v17.5.0</span></p></td></tr> 9391cb0ef41Sopenharmony_ci</tbody></table> 9401cb0ef41Sopenharmony_ci</details> 9411cb0ef41Sopenharmony_ci</div> 9421cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Disable this API with the <a href="cli.html#--no-experimental-fetch"><code>--no-experimental-fetch</code></a> 9431cb0ef41Sopenharmony_ciCLI flag.</div><p></p> 9441cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="https://developer.mozilla.org/en-US/docs/Web/API/Request" class="type"><Request></a>.</p> 9451cb0ef41Sopenharmony_ci</section><section><h3><code>setImmediate(callback[, ...args])</code><span><a class="mark" href="#setimmediatecallback-args" id="setimmediatecallback-args">#</a></span><a aria-hidden="true" class="legacy" id="globals_setimmediate_callback_args"></a></h3> 9461cb0ef41Sopenharmony_ci<div class="api_metadata"> 9471cb0ef41Sopenharmony_ci<span>Added in: v0.9.1</span> 9481cb0ef41Sopenharmony_ci</div> 9491cb0ef41Sopenharmony_ci 9501cb0ef41Sopenharmony_ci<p><a href="timers.html#setimmediatecallback-args"><code>setImmediate</code></a> is described in the <a href="timers.html">timers</a> section.</p> 9511cb0ef41Sopenharmony_ci</section><section><h3><code>setInterval(callback, delay[, ...args])</code><span><a class="mark" href="#setintervalcallback-delay-args" id="setintervalcallback-delay-args">#</a></span><a aria-hidden="true" class="legacy" id="globals_setinterval_callback_delay_args"></a></h3> 9521cb0ef41Sopenharmony_ci<div class="api_metadata"> 9531cb0ef41Sopenharmony_ci<span>Added in: v0.0.1</span> 9541cb0ef41Sopenharmony_ci</div> 9551cb0ef41Sopenharmony_ci 9561cb0ef41Sopenharmony_ci<p><a href="timers.html#setintervalcallback-delay-args"><code>setInterval</code></a> is described in the <a href="timers.html">timers</a> section.</p> 9571cb0ef41Sopenharmony_ci</section><section><h3><code>setTimeout(callback, delay[, ...args])</code><span><a class="mark" href="#settimeoutcallback-delay-args" id="settimeoutcallback-delay-args">#</a></span><a aria-hidden="true" class="legacy" id="globals_settimeout_callback_delay_args"></a></h3> 9581cb0ef41Sopenharmony_ci<div class="api_metadata"> 9591cb0ef41Sopenharmony_ci<span>Added in: v0.0.1</span> 9601cb0ef41Sopenharmony_ci</div> 9611cb0ef41Sopenharmony_ci 9621cb0ef41Sopenharmony_ci<p><a href="timers.html#settimeoutcallback-delay-args"><code>setTimeout</code></a> is described in the <a href="timers.html">timers</a> section.</p> 9631cb0ef41Sopenharmony_ci</section><section><h3><code>structuredClone(value[, options])</code><span><a class="mark" href="#structuredclonevalue-options" id="structuredclonevalue-options">#</a></span><a aria-hidden="true" class="legacy" id="globals_structuredclone_value_options"></a></h3> 9641cb0ef41Sopenharmony_ci<div class="api_metadata"> 9651cb0ef41Sopenharmony_ci<span>Added in: v17.0.0</span> 9661cb0ef41Sopenharmony_ci</div> 9671cb0ef41Sopenharmony_ci 9681cb0ef41Sopenharmony_ci<p>The WHATWG <a href="https://developer.mozilla.org/en-US/docs/Web/API/structuredClone"><code>structuredClone</code></a> method.</p> 9691cb0ef41Sopenharmony_ci</section><section><h3><code>SubtleCrypto</code><span><a class="mark" href="#subtlecrypto" id="subtlecrypto">#</a></span><a aria-hidden="true" class="legacy" id="globals_subtlecrypto"></a></h3> 9701cb0ef41Sopenharmony_ci<div class="api_metadata"> 9711cb0ef41Sopenharmony_ci<span>Added in: v17.6.0</span> 9721cb0ef41Sopenharmony_ci</div> 9731cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental. Enable this API with the 9741cb0ef41Sopenharmony_ci<a href="cli.html#--experimental-global-webcrypto"><code>--experimental-global-webcrypto</code></a> CLI flag.</div><p></p> 9751cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webcrypto.html#class-subtlecrypto" class="type"><SubtleCrypto></a>. This global is available 9761cb0ef41Sopenharmony_cionly if the Node.js binary was compiled with including support for the 9771cb0ef41Sopenharmony_ci<code>node:crypto</code> module.</p> 9781cb0ef41Sopenharmony_ci</section><section><h3><code>DOMException</code><span><a class="mark" href="#domexception" id="domexception">#</a></span><a aria-hidden="true" class="legacy" id="globals_domexception"></a></h3> 9791cb0ef41Sopenharmony_ci<div class="api_metadata"> 9801cb0ef41Sopenharmony_ci<span>Added in: v17.0.0</span> 9811cb0ef41Sopenharmony_ci</div> 9821cb0ef41Sopenharmony_ci 9831cb0ef41Sopenharmony_ci<p>The WHATWG <code>DOMException</code> class. See <a href="https://developer.mozilla.org/en-US/docs/Web/API/DOMException"><code>DOMException</code></a> for more details.</p> 9841cb0ef41Sopenharmony_ci</section><section><h3><code>TextDecoder</code><span><a class="mark" href="#textdecoder" id="textdecoder">#</a></span><a aria-hidden="true" class="legacy" id="globals_textdecoder"></a></h3> 9851cb0ef41Sopenharmony_ci<div class="api_metadata"> 9861cb0ef41Sopenharmony_ci<span>Added in: v11.0.0</span> 9871cb0ef41Sopenharmony_ci</div> 9881cb0ef41Sopenharmony_ci 9891cb0ef41Sopenharmony_ci<p>The WHATWG <code>TextDecoder</code> class. See the <a href="util.html#class-utiltextdecoder"><code>TextDecoder</code></a> section.</p> 9901cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>TextDecoderStream</code><span><a class="mark" href="#class-textdecoderstream" id="class-textdecoderstream">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_textdecoderstream"></a></h3> 9911cb0ef41Sopenharmony_ci<div class="api_metadata"> 9921cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 9931cb0ef41Sopenharmony_ci</div> 9941cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 9951cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-textdecoderstream"><code>TextDecoderStream</code></a>.</p> 9961cb0ef41Sopenharmony_ci</section><section><h3><code>TextEncoder</code><span><a class="mark" href="#textencoder" id="textencoder">#</a></span><a aria-hidden="true" class="legacy" id="globals_textencoder"></a></h3> 9971cb0ef41Sopenharmony_ci<div class="api_metadata"> 9981cb0ef41Sopenharmony_ci<span>Added in: v11.0.0</span> 9991cb0ef41Sopenharmony_ci</div> 10001cb0ef41Sopenharmony_ci 10011cb0ef41Sopenharmony_ci<p>The WHATWG <code>TextEncoder</code> class. See the <a href="util.html#class-utiltextencoder"><code>TextEncoder</code></a> section.</p> 10021cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>TextEncoderStream</code><span><a class="mark" href="#class-textencoderstream" id="class-textencoderstream">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_textencoderstream"></a></h3> 10031cb0ef41Sopenharmony_ci<div class="api_metadata"> 10041cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 10051cb0ef41Sopenharmony_ci</div> 10061cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 10071cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-textencoderstream"><code>TextEncoderStream</code></a>.</p> 10081cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>TransformStream</code><span><a class="mark" href="#class-transformstream" id="class-transformstream">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_transformstream"></a></h3> 10091cb0ef41Sopenharmony_ci<div class="api_metadata"> 10101cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 10111cb0ef41Sopenharmony_ci</div> 10121cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 10131cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-transformstream"><code>TransformStream</code></a>.</p> 10141cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>TransformStreamDefaultController</code><span><a class="mark" href="#class-transformstreamdefaultcontroller" id="class-transformstreamdefaultcontroller">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_transformstreamdefaultcontroller"></a></h3> 10151cb0ef41Sopenharmony_ci<div class="api_metadata"> 10161cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 10171cb0ef41Sopenharmony_ci</div> 10181cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 10191cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-transformstreamdefaultcontroller"><code>TransformStreamDefaultController</code></a>.</p> 10201cb0ef41Sopenharmony_ci</section><section><h3><code>URL</code><span><a class="mark" href="#url" id="url">#</a></span><a aria-hidden="true" class="legacy" id="globals_url"></a></h3> 10211cb0ef41Sopenharmony_ci<div class="api_metadata"> 10221cb0ef41Sopenharmony_ci<span>Added in: v10.0.0</span> 10231cb0ef41Sopenharmony_ci</div> 10241cb0ef41Sopenharmony_ci 10251cb0ef41Sopenharmony_ci<p>The WHATWG <code>URL</code> class. See the <a href="url.html#class-url"><code>URL</code></a> section.</p> 10261cb0ef41Sopenharmony_ci</section><section><h3><code>URLSearchParams</code><span><a class="mark" href="#urlsearchparams" id="urlsearchparams">#</a></span><a aria-hidden="true" class="legacy" id="globals_urlsearchparams"></a></h3> 10271cb0ef41Sopenharmony_ci<div class="api_metadata"> 10281cb0ef41Sopenharmony_ci<span>Added in: v10.0.0</span> 10291cb0ef41Sopenharmony_ci</div> 10301cb0ef41Sopenharmony_ci 10311cb0ef41Sopenharmony_ci<p>The WHATWG <code>URLSearchParams</code> class. See the <a href="url.html#class-urlsearchparams"><code>URLSearchParams</code></a> section.</p> 10321cb0ef41Sopenharmony_ci</section><section><h3><code>WebAssembly</code><span><a class="mark" href="#webassembly" id="webassembly">#</a></span><a aria-hidden="true" class="legacy" id="globals_webassembly"></a></h3> 10331cb0ef41Sopenharmony_ci<div class="api_metadata"> 10341cb0ef41Sopenharmony_ci<span>Added in: v8.0.0</span> 10351cb0ef41Sopenharmony_ci</div> 10361cb0ef41Sopenharmony_ci 10371cb0ef41Sopenharmony_ci<ul> 10381cb0ef41Sopenharmony_ci<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a></li> 10391cb0ef41Sopenharmony_ci</ul> 10401cb0ef41Sopenharmony_ci<p>The object that acts as the namespace for all W3C 10411cb0ef41Sopenharmony_ci<a href="https://webassembly.org">WebAssembly</a> related functionality. See the 10421cb0ef41Sopenharmony_ci<a href="https://developer.mozilla.org/en-US/docs/WebAssembly">Mozilla Developer Network</a> for usage and compatibility.</p> 10431cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>WritableStream</code><span><a class="mark" href="#class-writablestream" id="class-writablestream">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_writablestream"></a></h3> 10441cb0ef41Sopenharmony_ci<div class="api_metadata"> 10451cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 10461cb0ef41Sopenharmony_ci</div> 10471cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 10481cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-writablestream"><code>WritableStream</code></a>.</p> 10491cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>WritableStreamDefaultController</code><span><a class="mark" href="#class-writablestreamdefaultcontroller" id="class-writablestreamdefaultcontroller">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_writablestreamdefaultcontroller"></a></h3> 10501cb0ef41Sopenharmony_ci<div class="api_metadata"> 10511cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 10521cb0ef41Sopenharmony_ci</div> 10531cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 10541cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-writablestreamdefaultcontroller"><code>WritableStreamDefaultController</code></a>.</p> 10551cb0ef41Sopenharmony_ci</section><section><h3>Class: <code>WritableStreamDefaultWriter</code><span><a class="mark" href="#class-writablestreamdefaultwriter" id="class-writablestreamdefaultwriter">#</a></span><a aria-hidden="true" class="legacy" id="globals_class_writablestreamdefaultwriter"></a></h3> 10561cb0ef41Sopenharmony_ci<div class="api_metadata"> 10571cb0ef41Sopenharmony_ci<span>Added in: v18.0.0</span> 10581cb0ef41Sopenharmony_ci</div> 10591cb0ef41Sopenharmony_ci<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental.</div><p></p> 10601cb0ef41Sopenharmony_ci<p>A browser-compatible implementation of <a href="webstreams.html#class-writablestreamdefaultwriter"><code>WritableStreamDefaultWriter</code></a>.</p></section> 10611cb0ef41Sopenharmony_ci <!-- API END --> 10621cb0ef41Sopenharmony_ci </div> 10631cb0ef41Sopenharmony_ci </div> 10641cb0ef41Sopenharmony_ci </div> 10651cb0ef41Sopenharmony_ci</body> 10661cb0ef41Sopenharmony_ci</html> 1067