Index | Node.js v9.11.2 Documentation

<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width"> <title>Index | Node.js v9.11.2 Documentation</title> <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Lato:400,700,400italic"> <link rel="stylesheet" href="assets/style.css"> <link rel="stylesheet" href="assets/sh.css"> <link rel="canonical" href="https://nodejs.org/api/index.html"> </head> <body class="alt apidoc" id="api-section-index"> <div id="content" class="clearfix"> <div id="column2" class="interior"> <div id="intro" class="interior"> <a href="/" title="Go back to the home page"> Node.js </a> </div>  <ul> <li><a class="nav-documentation" href="documentation.html">About these Docs</a></li> <li><a class="nav-synopsis" href="synopsis.html">Usage & Example</a></li> </ul> <div class="line"></div> <ul> <li><a class="nav-assert" href="assert.html">Assertion Testing</a></li> <li><a class="nav-async_hooks" href="async_hooks.html">Async Hooks</a></li> <li><a class="nav-buffer" href="buffer.html">Buffer</a></li> <li><a class="nav-addons" href="addons.html">C++ Addons</a></li> <li><a class="nav-n-api" href="n-api.html">C/C++ Addons - N-API</a></li> <li><a class="nav-child_process" href="child_process.html">Child Processes</a></li> <li><a class="nav-cluster" href="cluster.html">Cluster</a></li> <li><a class="nav-cli" href="cli.html">Command Line Options</a></li> <li><a class="nav-console" href="console.html">Console</a></li> <li><a class="nav-crypto" href="crypto.html">Crypto</a></li> <li><a class="nav-debugger" href="debugger.html">Debugger</a></li> <li><a class="nav-deprecations" href="deprecations.html">Deprecated APIs</a></li> <li><a class="nav-dns" href="dns.html">DNS</a></li> <li><a class="nav-domain" href="domain.html">Domain</a></li> <li><a class="nav-esm" href="esm.html">ECMAScript Modules</a></li> <li><a class="nav-errors" href="errors.html">Errors</a></li> <li><a class="nav-events" href="events.html">Events</a></li> <li><a class="nav-fs" href="fs.html">File System</a></li> <li><a class="nav-globals" href="globals.html">Globals</a></li> <li><a class="nav-http" href="http.html">HTTP</a></li> <li><a class="nav-http2" href="http2.html">HTTP/2</a></li> <li><a class="nav-https" href="https.html">HTTPS</a></li> <li><a class="nav-inspector" href="inspector.html">Inspector</a></li> <li><a class="nav-intl" href="intl.html">Internationalization</a></li> <li><a class="nav-modules" href="modules.html">Modules</a></li> <li><a class="nav-net" href="net.html">Net</a></li> <li><a class="nav-os" href="os.html">OS</a></li> <li><a class="nav-path" href="path.html">Path</a></li> <li><a class="nav-perf_hooks" href="perf_hooks.html">Performance Hooks</a></li> <li><a class="nav-process" href="process.html">Process</a></li> <li><a class="nav-punycode" href="punycode.html">Punycode</a></li> <li><a class="nav-querystring" href="querystring.html">Query Strings</a></li> <li><a class="nav-readline" href="readline.html">Readline</a></li> <li><a class="nav-repl" href="repl.html">REPL</a></li> <li><a class="nav-stream" href="stream.html">Stream</a></li> <li><a class="nav-string_decoder" href="string_decoder.html">String Decoder</a></li> <li><a class="nav-timers" href="timers.html">Timers</a></li> <li><a class="nav-tls" href="tls.html">TLS/SSL</a></li> <li><a class="nav-tracing" href="tracing.html">Tracing</a></li> <li><a class="nav-tty" href="tty.html">TTY</a></li> <li><a class="nav-dgram" href="dgram.html">UDP/Datagram</a></li> <li><a class="nav-url" href="url.html">URL</a></li> <li><a class="nav-util" href="util.html">Utilities</a></li> <li><a class="nav-v8" href="v8.html">V8</a></li> <li><a class="nav-vm" href="vm.html">VM</a></li> <li><a class="nav-zlib" href="zlib.html">ZLIB</a></li> </ul> <div class="line"></div> <ul> <li><a class="nav-https-github-com-nodejs-node" href="https://github.com/nodejs/node">GitHub Repo & Issue Tracker</a></li> <li><a class="nav-https-groups-google-com-group-nodejs" href="https://groups.google.com/group/nodejs">Mailing List</a></li> </ul> </div> <div id="column1" data-id="index" class="interior"> <header> <h1>Node.js v9.11.2 Documentation</h1> <div id="gtoc"> <ul> <li> <a href="index.html" name="toc">Index</a> </li> <li> <a href="all.html">View on single page</a> </li> <li> <a href="index.json">View as JSON</a> </li> <li class="version-picker"> <a href="#">View another version <span>▼</span></a> <ol class="version-picker"><li><a href="https://nodejs.org/docs/latest-v9.x/api/index.html">9.x</a></li> <li><a href="https://nodejs.org/docs/latest-v8.x/api/index.html">8.x <b>LTS</b></a></li> <li><a href="https://nodejs.org/docs/latest-v7.x/api/index.html">7.x</a></li> <li><a href="https://nodejs.org/docs/latest-v6.x/api/index.html">6.x <b>LTS</b></a></li> <li><a href="https://nodejs.org/docs/latest-v5.x/api/index.html">5.x</a></li> <li><a href="https://nodejs.org/docs/latest-v4.x/api/index.html">4.x <b>LTS</b></a></li> <li><a href="https://nodejs.org/docs/latest-v0.12.x/api/index.html">0.12.x</a></li> <li><a href="https://nodejs.org/docs/latest-v0.10.x/api/index.html">0.10.x</a></li></ol> </li> </ul> </div> <hr> </header> <div id="toc"> <h2>Table of Contents</h2> </div> <div id="apicontent">   <ul> <li><a href="documentation.html">About these Docs</a></li> <li><a href="synopsis.html">Usage & Example</a></li> </ul> <div class="line"></div> <ul> <li><a href="assert.html">Assertion Testing</a></li> <li><a href="async_hooks.html">Async Hooks</a></li> <li><a href="buffer.html">Buffer</a></li> <li><a href="addons.html">C++ Addons</a></li> <li><a href="n-api.html">C/C++ Addons - N-API</a></li> <li><a href="child_process.html">Child Processes</a></li> <li><a href="cluster.html">Cluster</a></li> <li><a href="cli.html">Command Line Options</a></li> <li><a href="console.html">Console</a></li> <li><a href="crypto.html">Crypto</a></li> <li><a href="debugger.html">Debugger</a></li> <li><a href="deprecations.html">Deprecated APIs</a></li> <li><a href="dns.html">DNS</a></li> <li><a href="domain.html">Domain</a></li> <li><a href="esm.html">ECMAScript Modules</a></li> <li><a href="errors.html">Errors</a></li> <li><a href="events.html">Events</a></li> <li><a href="fs.html">File System</a></li> <li><a href="globals.html">Globals</a></li> <li><a href="http.html">HTTP</a></li> <li><a href="http2.html">HTTP/2</a></li> <li><a href="https.html">HTTPS</a></li> <li><a href="inspector.html">Inspector</a></li> <li><a href="intl.html">Internationalization</a></li> <li><a href="modules.html">Modules</a></li> <li><a href="net.html">Net</a></li> <li><a href="os.html">OS</a></li> <li><a href="path.html">Path</a></li> <li><a href="perf_hooks.html">Performance Hooks</a></li> <li><a href="process.html">Process</a></li> <li><a href="punycode.html">Punycode</a></li> <li><a href="querystring.html">Query Strings</a></li> <li><a href="readline.html">Readline</a></li> <li><a href="repl.html">REPL</a></li> <li><a href="stream.html">Stream</a></li> <li><a href="string_decoder.html">String Decoder</a></li> <li><a href="timers.html">Timers</a></li> <li><a href="tls.html">TLS/SSL</a></li> <li><a href="tracing.html">Tracing</a></li> <li><a href="tty.html">TTY</a></li> <li><a href="dgram.html">UDP/Datagram</a></li> <li><a href="url.html">URL</a></li> <li><a href="util.html">Utilities</a></li> <li><a href="v8.html">V8</a></li> <li><a href="vm.html">VM</a></li> <li><a href="zlib.html">ZLIB</a></li> </ul> <div class="line"></div> <ul> <li><a href="https://github.com/nodejs/node">GitHub Repo & Issue Tracker</a></li> <li><a href="https://groups.google.com/group/nodejs">Mailing List</a></li> </ul>  </div> </div> </div> <script src="assets/sh_main.js"></script> <script src="assets/sh_javascript.min.js"></script> <script>highlight(undefined, undefined, 'pre');</script> <script src="assets/dnt_helper.js"></script> <script> if (!_dntEnabled()) { (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r; i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)}, i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0]; a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document, 'script','//www.google-analytics.com/analytics.js','ga'); ga('create', 'UA-67020396-1', 'auto'); ga('send', 'pageview'); } </script> </body> </html>

CINXE.COM

Index | Node.js v9.11.2 Documentation