mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Paul O’Shannessy
199 lines
7.9 KiB
HTML
199 lines
7.9 KiB
HTML
<!DOCTYPE html>
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<!--[if IE]><![endif]-->
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<html>
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<title>A JavaScript library for building user interfaces | React</title>
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<meta name="viewport" content="width=device-width">
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<meta property="og:title" content="A JavaScript library for building user interfaces | React">
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<meta property="og:type" content="website">
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<meta property="og:url" content="http://facebook.github.io/react/index.html">
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<meta property="og:image" content="http://facebook.github.io/react/img/logo_og.png">
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<meta property="og:description" content="A JavaScript library for building user interfaces">
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<meta property="fb:app_id" content="623268441017527">
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<link rel="shortcut icon" href="/react/favicon.ico">
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<link rel="alternate" type="application/rss+xml" title="React" href="http://facebook.github.io/react/feed.xml">
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<link rel="stylesheet" href="/react/css/syntax.css">
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<link rel="stylesheet" href="/react/css/codemirror.css">
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<link rel="stylesheet" href="/react/css/react.css">
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<script type="text/javascript" src="//use.typekit.net/vqa1hcx.js"></script>
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<script type="text/javascript">try{Typekit.load();}catch(e){}</script>
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<!--[if lte IE 8]>
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<script type="text/javascript" src="/react/js/html5shiv.min.js"></script>
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<script type="text/javascript" src="/react/js/es5-shim.min.js"></script>
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<script type="text/javascript" src="/react/js/es5-sham.min.js"></script>
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<![endif]-->
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<script type="text/javascript" src="/react/js/codemirror.js"></script>
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<script type="text/javascript" src="/react/js/javascript.js"></script>
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<script type="text/javascript" src="/react/js/react.js"></script>
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<script type="text/javascript" src="/react/js/JSXTransformer.js"></script>
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<script type="text/javascript" src="/react/js/live_editor.js"></script>
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<script type="text/javascript" src="/react/js/showdown.js"></script>
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</head>
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<body>
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<div class="container">
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<div class="nav-main">
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<div class="wrap">
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<a class="nav-home" href="/react/index.html">
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<img class="nav-logo" src="/react/img/logo.svg" width="36" height="36">
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React
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</a>
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<ul class="nav-site">
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<li><a href="/react/docs/getting-started.html">docs</a></li>
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<li><a href="/react/support.html">support</a></li>
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<li><a href="/react/downloads.html">download</a></li>
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<li><a href="/react/blog/">blog</a></li>
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<li><a href="http://github.com/facebook/react">github</a>
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</ul>
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</div>
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</div>
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<div class="hero">
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<div class="wrap">
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<div class="text"><strong>React</strong></div>
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<div class="minitext">
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A JavaScript library for building user interfaces
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</div>
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<div class="buttons-unit">
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<a href="/react/docs/getting-started.html" class="button">Get Started</a>
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<a href="/react/downloads.html" class="button">Download React v0.12.1</a>
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</div>
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</div>
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</div>
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<section class="content wrap">
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<p><section class="light home-section">
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<div class="marketing-row">
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<div class="marketing-col">
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<h3>Just the UI</h3>
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<p>
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Lots of people use React as the V in MVC.
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Since React makes no assumptions about the rest of your technology stack,
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it's easy to try it out on a small feature in an existing project.
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</p>
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</div>
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<div class="marketing-col">
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<h3>Virtual DOM</h3>
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<p>
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React uses a <i>virtual DOM</i> diff implementation for ultra-high performance. It can also
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render on the server using Node.js — no heavy browser DOM required.
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</p>
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</div>
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<div class="marketing-col">
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<h3>Data flow</h3>
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<p>
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React implements one-way reactive data flow which reduces boilerplate and is
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easier to reason about than traditional data binding.
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</p>
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</div>
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</div>
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</section>
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<hr class="home-divider" />
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<section class="home-section">
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<div id="examples">
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<div class="example">
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<h3>A Simple Component</h3>
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<p>
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React components implement a <code>render()</code> method that takes input data and
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returns what to display. This example uses an XML-like syntax called
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JSX. Input data that is passed into the component can be accessed by
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<code>render()</code> via <code>this.props</code>.
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</p>
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<p>
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<strong>JSX is optional and not required to use React.</strong> Try
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clicking on "Compiled JS" to see the raw JavaScript code produced by
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the JSX compiler.
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</p>
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<div id="helloExample"></div>
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</div>
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<div class="example">
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<h3>A Stateful Component</h3>
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<p>
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In addition to taking input data (accessed via <code>this.props</code>), a
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component can maintain internal state data (accessed via <code>this.state</code>).
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When a component's state data changes, the rendered markup will be
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updated by re-invoking <code>render()</code>.
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</p>
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<div id="timerExample"></div>
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</div>
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<div class="example">
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<h3>An Application</h3>
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<p>
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Using <code>props</code> and <code>state</code>, we can put together a small Todo application.
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This example uses <code>state</code> to track the current list of items as well as
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the text that the user has entered. Although event handlers appear to be
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rendered inline, they will be collected and implemented using event
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delegation.
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</p>
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<div id="todoExample"></div>
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</div>
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<div class="example">
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<h3>A Component Using External Plugins</h3>
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<p>
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React is flexible and provides hooks that allow you to interface with
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other libraries and frameworks. This example uses Showdown, an external
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Markdown library, to convert the textarea's value in real-time.
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</p>
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<div id="markdownExample"></div>
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</div>
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</div>
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<script type="text/javascript" src="js/examples/hello.js"></script>
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<script type="text/javascript" src="js/examples/timer.js"></script>
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<script type="text/javascript" src="js/examples/todo.js"></script>
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<script type="text/javascript" src="js/examples/markdown.js"></script>
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</section>
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<hr class="home-divider" />
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<section class="home-bottom-section">
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<div class="buttons-unit">
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<a href="docs/getting-started.html" class="button">Get Started</a>
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<a href="downloads.html" class="button">Download React v0.12.1</a>
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</div>
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</section></p>
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</section>
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<footer class="wrap">
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<div class="left">
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A Facebook & Instagram collaboration.<br>
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<a href="/react/acknowledgements.html">Acknowledgements</a>
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</div>
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<div class="right">
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© 2013–2014 Facebook Inc.<br>
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Documentation licensed under <a href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.
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</div>
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</footer>
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</div>
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