| <!-- |
| Copyright 2019 The Go Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style |
| license that can be found in the LICENSE file. |
| --> |
| |
| <!DOCTYPE html> |
| <html lang="en"> |
| <meta charset="utf-8"> |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <meta name="Description" content="Go is an open source programming language that makes it easy to build simple, reliable, and efficient software."> |
| <meta class="js-gtmID" data-gtmid="{{.GoogleTagManagerID}}"> |
| <link href="https://fonts.googleapis.com/css?family=Work+Sans:600|Roboto:400,500,700|Source+Code+Pro" rel="stylesheet"> |
| <link href="/static/css/stylesheet.css?version={{.AppVersionLabel}}" rel="stylesheet"> |
| {{if (.Experiments.IsActive "sidenav")}} |
| <link href="/static/css/sidenav.css?version={{.AppVersionLabel}}" rel="stylesheet"> |
| {{end}} |
| {{block "main_content_stylesheet" .}}{{end}} |
| <link href="/third_party/dialog-polyfill/dialog-polyfill.css?version={{.AppVersionLabel}}" rel="stylesheet"> |
| <title>{{if .HTMLTitle}}{{.HTMLTitle}} · {{end}}pkg.go.dev</title> |
| <body class="Site"> |
| <header class="Site-header Site-header--dark"> |
| <div class="Banner"> |
| <div class="Banner-inner"> |
| <div class="Banner-message">Black Lives Matter</div> |
| <a class="Banner-action" |
| href="https://support.eji.org/give/153413/#!/donation/checkout" |
| target="_blank" |
| rel="noopener">Support the Equal Justice Initiative</a> |
| </div> |
| </div> |
| <div class="Header"> |
| <nav class="Header-nav"> |
| <a href="https://go.dev/" class="Header-logoLink"> |
| <img class="Header-logo" src="/static/img/go-logo-white.svg" alt="Go"> |
| </a> |
| {{template "header_search" .}} |
| <ul class="Header-menu"> |
| <li class="Header-menuItem"> |
| <a href="https://go.dev/solutions" title="Why Go">Why Go</a> |
| </li> |
| <li class="Header-menuItem"> |
| <a href="https://learn.go.dev" title="Getting Started">Getting Started</a> |
| </li> |
| <li class="Header-menuItem Header-menuItem--active"> |
| <a href="/" title="Discover Packages">Discover Packages</a> |
| </li> |
| <li class="Header-menuItem"> |
| <a href="https://go.dev/about" title="">About</a> |
| </li> |
| </ul> |
| <button class="Header-navOpen js-headerMenuButton" aria-label="Open navigation."> |
| </button> |
| </nav> |
| </div> |
| </header> |
| <aside class="NavigationDrawer js-header"> |
| <nav class="NavigationDrawer-nav"> |
| <div class="NavigationDrawer-header"> |
| <a href="https://go.dev/"> |
| <img class="NavigationDrawer-logo" src="/static/img/go-logo-blue.svg" alt="Go."> |
| </a> |
| <button class="NavigationDrawer-close js-headerMenuButton" aria-label="Close navigation."> |
| </button> |
| </div> |
| <ul class="NavigationDrawer-list"> |
| <li class="NavigationDrawer-listItem"> |
| <a href="https://go.dev/solutions" title="Why Go">Why Go</a> |
| </li> |
| <li class="NavigationDrawer-listItem"> |
| <a href="https://learn.go.dev" title="Getting Started">Getting Started</a> |
| </li> |
| <li class="NavigationDrawer-listItem NavigationDrawer-listItem--active"> |
| <a href="/" title="Discover Packages">Discover Packages</a> |
| </li> |
| <li class="NavigationDrawer-listItem"> |
| <a href="https://go.dev/about" title="">About</a> |
| </li> |
| <li class="NavigationDrawer-listItem"> |
| <a href="https://golang.org" title="golang.org">golang.org</a> |
| </li> |
| </ul> |
| </nav> |
| </aside> |
| <div class="NavigationDrawer-scrim js-scrim" role="presentation"> |
| </div> |
| <main class="Site-content">{{block "main_content" .}}{{end}}</main> |
| <footer class="Site-footer"> |
| {{block "pre_footer" .}}{{end}} |
| <div class="Footer"> |
| <div class="Footer-links"> |
| <div class="Footer-linkColumn"> |
| <a href="https://go.dev/solutions" class="Footer-link Footer-link--primary" title="Why Go"> |
| Why Go |
| </a> |
| <a href="https://go.dev/solutions#use-cases" class="Footer-link" title="Use Cases"> |
| Use Cases |
| </a> |
| <a href="https://go.dev/solutions#case-studies" class="Footer-link" title="Case Studies"> |
| Case Studies |
| </a> |
| </div> |
| <div class="Footer-linkColumn"> |
| <a href="https://learn.go.dev/" class="Footer-link Footer-link--primary" title="Getting Started"> |
| Getting Started |
| </a> |
| <a href="https://play.golang.org" class="Footer-link" title=""> |
| Playground |
| </a> |
| <a href="https://tour.golang.org" class="Footer-link" title=""> |
| Tour |
| </a> |
| <a href="https://stackoverflow.com/questions/tagged/go?tab=Newest" class="Footer-link" title=""> |
| Stack Overflow |
| </a> |
| </div> |
| <div class="Footer-linkColumn"> |
| <a href="https://pkg.go.dev" class="Footer-link Footer-link--primary" title="Discover Packages"> |
| Discover Packages |
| </a> |
| </div> |
| <div class="Footer-linkColumn"> |
| <a href="https://go.dev/about" class="Footer-link Footer-link--primary" title="About"> |
| About |
| </a> |
| <a href="https://golang.org/dl/" class="Footer-link" title=""> |
| Download |
| </a> |
| <a href="https://blog.golang.org" class="Footer-link" title=""> |
| Blog |
| </a> |
| <a href="https://golang.org/doc/devel/release.html" class="Footer-link" title=""> |
| Release Notes |
| </a> |
| <a href="https://blog.golang.org/go-brand" class="Footer-link" title=""> |
| Brand Guidelines |
| </a> |
| <a href="https://golang.org/conduct" class="Footer-link"> |
| Code of Conduct |
| </a> |
| </div> |
| <div class="Footer-linkColumn"> |
| <a href="https://www.twitter.com/golang" class="Footer-link Footer-link--primary" title="Connect"> |
| Connect |
| </a> |
| <a href="https://www.twitter.com/golang" class="Footer-link" title=""> |
| Twitter |
| </a> |
| <a href="https://github.com/golang" class="Footer-link" title=""> |
| GitHub |
| </a> |
| <a href="https://invite.slack.golangbridge.org/" class="Footer-link" title=""> |
| Slack |
| </a> |
| <a href="https://www.meetup.com/pro/go" class="Footer-link" title=""> |
| Meetup |
| </a> |
| </div> |
| </div> |
| </div> |
| <div class="Footer"> |
| <div class="Container Container--fullBleed"> |
| <div class="Footer-bottom"> |
| <img class="Footer-gopher" loading="lazy" src="/static/img/pilot-bust.svg" alt="The Go Gopher"> |
| <ul class="Footer-listRow"> |
| <li class="Footer-listItem"><a href="https://go.dev/copyright">Copyright</a></li> |
| <li class="Footer-listItem"><a href="https://go.dev/tos">Terms of Service</a></li> |
| <li class="Footer-listItem"><a href="http://www.google.com/intl/en/policies/privacy/" target="_blank" rel="noopener">Privacy |
| Policy</a></li> |
| <li class="Footer-listItem"> |
| <a href="https://golang.org/s/pkgsite-feedback" target="_blank" rel="noopener"> |
| Report an Issue |
| </a> |
| </li> |
| <li class="Footer-listItem"><a href="https://golang.org" target="_blank" rel="noopener">golang.org</a></li> |
| </ul> |
| <a class="Footer-googleLogo" href="https://google.com" target="_blank" rel="noopener"> |
| <img class="Footer-googleLogoImg" loading="lazy" src="/static/img/google-white.png" alt="Google logo"> |
| </a> |
| </div> |
| </div> |
| </div> |
| </footer> |
| |
| <script> |
| function loadScript(src) { |
| let s = document.createElement("script"); |
| s.src = src; |
| document.head.appendChild(s); |
| } |
| |
| loadScript("/static/js/base.min.js"); |
| </script> |
| |
| {{block "post_content" .}}{{end}} |
| |
| {{if not .DevMode}} |
| <script async> |
| const gtmId = document.querySelector('.js-gtmID').dataset.gtmid; // this will throw if the querySelector can’t find the element |
| if (!gtmId) { |
| throw new Error('Google Tag Manager ID not found'); |
| } |
| loadScript(`https://www.googletagmanager.com/gtm.js?id=${gtmId}`); |
| </script> |
| {{end}} |
| |
| {{if (.Experiments.IsActive "autocomplete")}} |
| <script> |
| loadScript("/third_party/autoComplete.js/autoComplete.min.js"); |
| loadScript("/static/js/completion.min.js"); |
| </script> |
| {{end}} |
