| <!doctype html> |
| <html> |
| <head> |
| <title>The Go Playground</title> |
| <link rel="stylesheet" href="/static/style.css"> |
| {{if .Analytics}} |
| <script async src="https://www.googletagmanager.com/gtag/js?id=UA-11222381-7"></script> |
| <script> |
| window.dataLayer = window.dataLayer || []; |
| function gtag(){dataLayer.push(arguments);} |
| gtag('js', new Date()); |
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| <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script> |
| <script src="/static/jquery-linedtextarea.js"></script> |
| <script src="/playground.js"></script> |
| <script src="/static/playground-embed.js"></script> |
| <script> |
| $(document).ready(function() { |
| playground({ |
| 'codeEl': '#code', |
| 'outputEl': '#output', |
| 'runEl': '#run, #embedRun', |
| 'fmtEl': '#fmt', |
| 'fmtImportEl': '#imports', |
| {{if $.Share}} |
| 'shareEl': '#share', |
| 'shareURLEl': '#shareURL', |
| {{end}} |
| 'enableHistory': true, |
| 'enableShortcuts': true, |
| 'enableVet': true, |
| 'toysEl': '.js-playgroundToysEl' |
| }); |
| playgroundEmbed({ |
| 'codeEl': '#code', |
| {{if $.Share}} |
| 'shareEl': '#share', |
| {{end}} |
| 'embedEl': '#embed', |
| 'embedLabelEl': '#embedLabel', |
| 'embedHTMLEl': '#shareURL' |
| }); |
| $('#code').linedtextarea(); |
| // Avoid line wrapping. |
| $('#code').attr('wrap', 'off'); |
| var about = $('#about'); |
| about.click(function(e) { |
| if ($(e.target).is('a')) { |
| return; |
| } |
| about.hide(); |
| }); |
| $('#aboutButton').click(function() { |
| if (about.is(':visible')) { |
| about.hide(); |
| return; |
| } |
| about.show(); |
| }) |
| // Preserve "Imports" checkbox value between sessions. |
| if (readCookie('playgroundImports') == 'true') { |
| $('#imports').attr('checked','checked'); |
| } |
| $('#imports').change(function() { |
| createCookie('playgroundImports', $(this).is(':checked') ? 'true' : ''); |
| }); |
| {{if .Analytics}} |
| // Fire Google Analytics events for Run/Share button clicks. |
| $('#run').click(function() { |
| gtag('event', 'click', { |
| event_category: 'playground', |
| event_label: 'run-button', |
| }); |
| }); |
| $('#share').click(function() { |
| gtag('event', 'click', { |
| event_category: 'playground', |
| event_label: 'share-button', |
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| {{end}} |
| }); |
| |
| function createCookie(name, value) { |
| document.cookie = name+"="+value+"; path=/"; |
| } |
| |
| function readCookie(name) { |
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| </script> |
| </head> |
| <body itemscope itemtype="http://schema.org/CreativeWork"> |
| <input type="button" value="Run" id="embedRun"> |
| <div id="banner"> |
| <div id="head" itemprop="name">The Go Playground</div> |
| <div id="controls"> |
| <input type="button" value="Run" id="run"> |
| <input type="button" value="Format" id="fmt"> |
| <div id="importsBox"> |
| <label title="Rewrite imports on Format"> |
| <input type="checkbox" id="imports"> |
| Imports |
| </label> |
| </div> |
| {{if $.Share}} |
| <input type="button" value="Share" id="share"> |
| <input type="text" id="shareURL"> |
| <label id="embedLabel"> |
| <input type="checkbox" id="embed"> |
| embed |
| </label> |
| {{end}} |
| <select class="js-playgroundToysEl"> |
| <option value="hello.txt">Hello, playground</option> |
| <option value="test.txt">Tests</option> |
| <option value="multi.txt">Multiple files</option> |
| <option value="image.txt">Display image</option> |
| <option value="sleep.txt">Sleep</option> |
| <option value="clear.txt">Clear</option> |
| </select> |
| </div> |
| <div id="aboutControls"> |
| <input type="button" value="About" id="aboutButton"> |
| </div> |
| </div> |
| <div id="wrap"> |
| <textarea itemprop="description" id="code" name="code" autocorrect="off" autocomplete="off" autocapitalize="off" spellcheck="false">{{printf "%s" .Snippet.Body}}</textarea> |
| </div> |
| <div id="output"></div> |
| <img itemprop="image" src="/static/gopher.png" style="display:none"> |
| <div id="about"> |
| <p><b>About the Playground</b></p> |
| |
| <p> |
| The Go Playground is a web service that runs on |
| <a href="https://golang.org/">golang.org</a>'s servers. |
| The service receives a Go program, <a href="https://golang.org/cmd/vet/">vets</a>, compiles, links, and |
| runs the program inside a sandbox, then returns the output. |
| </p> |
| |
| <p> |
| If the program contains <a href="https://golang.org/pkg/testing">tests or examples</a> |
| and no main function, the service runs the tests. |
| Benchmarks will likely not be supported since the program runs in a sandboxed |
| environment with limited resources. |
| </p> |
| |
| <p> |
| There are limitations to the programs that can be run in the playground: |
| </p> |
| |
| <ul> |
| |
| <li> |
| The playground can use most of the standard library, with some exceptions. |
| The only communication a playground program has to the outside world |
| is by writing to standard output and standard error. |
| </li> |
| |
| <li> |
| In the playground the time begins at 2009-11-10 23:00:00 UTC |
| (determining the significance of this date is an exercise for the reader). |
| This makes it easier to cache programs by giving them deterministic output. |
| </li> |
| |
| <li> |
| There are also limits on execution time and on CPU and memory usage. |
| </li> |
| |
| </ul> |
| |
| <p> |
| The article "<a href="https://blog.golang.org/playground" target="_blank" rel="noopener">Inside |
| the Go Playground</a>" describes how the playground is implemented. |
| The source code is available at <a href="https://go.googlesource.com/playground" target="_blank" rel="noopener"> |
| https://go.googlesource.com/playground</a>. |
| </p> |
| |
| <p> |
| The playground uses the latest stable release of Go.<br> |
| The current version is <a href="/p/Ztyu2FJaajl">{{.GoVersion}}</a>. |
| </p> |
| |
| <p> |
| The playground service is used by more than just the official Go project |
| (<a href="https://gobyexample.com/">Go by Example</a> is one other instance) |
| and we are happy for you to use it on your own site. |
| All we ask is that you |
| <a href="mailto:golang-dev@googlegroups.com">contact us first (note this is a public mailing list)</a>, |
| use a unique user agent in your requests (so we can identify you), |
| and that your service is of benefit to the Go community. |
| </p> |
| |
| <p> |
| Any requests for content removal should be directed to |
| <a href="mailto:security@golang.org">security@golang.org</a>. |
| Please include the URL and the reason for the request. |
| </p> |
| </div> |
| </body> |
| </html> |