<!doctype html>
<html>
	<head>
		<title>The {{if .Gotip}}Gotip{{else}}Go{{end}} 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());
			gtag('config', 'UA-11222381-7');
			gtag('config', 'UA-49880327-6');
		</script>
		{{end}}
		<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',
				'shareEl':      '#share',
				'shareURLEl':   '#shareURL',
				'enableHistory': true,
				'enableShortcuts': true,
				'enableVet': true,
				'toysEl': '.js-playgroundToysEl'
			});
			playgroundEmbed({
				'codeEl':       '#code',
				'shareEl':      '#share',
				'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',
				});
			});
			{{end}}
		});

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		function readCookie(name) {
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			var ca = document.cookie.split(';');
			for(var i=0;i < ca.length;i++) {
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				if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
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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 {{if .Gotip}}<a href="https://golang.org/dl/gotip">Gotip</a>{{else}}Go{{end}} Playground</div>
			<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>
			<input type="button" value="Share" id="share">
			<input type="text" id="shareURL">
			<label id="embedLabel">
				<input type="checkbox" id="embed">
				embed
			</label>
			<select class="js-playgroundToysEl">
				{{range .Examples}}
				<option value="{{.Path}}">{{.Title}}</option>
				{{end}}
			</select>
			<input type="button" value="About" id="aboutButton">
		</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>
{{if .Gotip}}
This playground uses a development version of Go.<br>
{{else}}
The playground uses the latest stable release of Go.<br>
{{end}}
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>