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Nick Thompson nick-thompson Clarify componentWillMount behavior542f20bCheng Lou chenglou docs fix back link in Examples6b15ad5Cheng Lou chenglou docs add jsx->js tab to live editors7ac5f3cPaul O’Shannessy zpao Normalize line endings6b1c6beBen Alpert spicyj Update homepage for new JSX/JS editor761e1c8Ben Alpert spicyj Properly clear live editor on JSX compile failured3fc5adBen Alpert spicyj Simplify live editor execution logicc7f0663Cheng Lou chenglou [docs] Tweak frontpage first example and jsx-compiler example8c8841cChristoph Pojer cpojer Update propTypes documentation.b66fbdeJean Lauliac jeanlauliac Update broken link in 'why react' article341d292Jean Lauliac jeanlauliac Normalize internal links in 'why react' article0681d13aymanosman aymanosman Fix typo09650e1Bob Eagan bobeagan fix incorrect link2edb76fBob Eagan bobeagan add hash link for lifecycle section of working with the browser page3db3460Pete Hunt petehunt remove references to react-page3120192Ben Alpert spicyj Fix docs typo6e4ddfdPaul O’Shannessy zpao Fix animation example code …dd66223Eric Schoffstall Contra fix grammar mistake64ac427Kunal Mehta kmeht Add documentation about React.renderComponent …f970453Christopher Chedeau vjeux s/Mock DOM/Virtual DOM/ …22772c9Ben Alpert spicyj Disable CodeMirror smart indentation …571d173Ben Alpert spicyj [docs] Fix comma splice3810c83
480 lines
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480 lines
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<a href="/react/tips/maximum-number-of-jsx-root-nodes.html">Maximum Number of JSX Root Nodes</a>
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<a href="/react/tips/style-props-value-px.html">Shorthand for Specifying Pixel Values in style props</a>
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<a href="/react/tips/children-props-type.html">Type of the Children props</a>
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<a href="/react/tips/controlled-input-null-value.html">Value of null for Controlled Input</a>
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<a href="/react/tips/componentWillReceiveProps-not-triggered-after-mounting.html">componentWillReceiveProps Not Triggered After Mounting</a>
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</li>
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<li>
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<a href="/react/tips/props-in-getInitialState-as-anti-pattern.html">Props in getInitialState Is an Anti-Pattern</a>
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</li>
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<li>
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<a href="/react/tips/dom-event-listeners.html">DOM Event Listeners in a Component</a>
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</li>
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<li>
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<a href="/react/tips/initial-ajax.html">Load Initial Data via AJAX</a>
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</li>
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<li>
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<a href="/react/tips/false-in-jsx.html">False in JSX</a>
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</li>
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<li>
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<a href="/react/tips/communicate-between-components.html">Communicate Between Components</a>
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</li>
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<li>
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<a href="/react/tips/expose-component-functions.html">Expose Component Functions</a>
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</li>
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</ul>
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</div>
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</div>
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<div class="inner-content">
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<h1>Getting Started</h1>
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<div class="subHeader"></div>
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<h2><a class="anchor" name="jsfiddle"></a>JSFiddle <a class="hash-link" href="#jsfiddle">#</a></h2>
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<p>The easiest way to start hacking on React is using the following JSFiddle Hello Worlds</p>
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<ul>
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<li><strong><a href="http://jsfiddle.net/vjeux/kb3gN/">React JSFiddle</a></strong></li>
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<li><a href="http://jsfiddle.net/vjeux/VkebS/">React JSFiddle without JSX</a></li>
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</ul>
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<h2><a class="anchor" name="starter-kit"></a>Starter Kit <a class="hash-link" href="#starter-kit">#</a></h2>
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<p>Download the starter kit to get started.</p>
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<div class="buttons-unit downloads">
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<a href="/react/downloads/react-0.8.0.zip" class="button">
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Download Starter Kit 0.8.0
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</a>
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</div>
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<p>In the root directory of the starter kit, create a <code>helloworld.html</code> with the following contents.</p>
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<div class="highlight"><pre><code class="html language-html" data-lang="html"><span class="cp"><!DOCTYPE html></span>
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<span class="nt"><html></span>
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<span class="nt"><head></span>
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<span class="nt"><script </span><span class="na">src=</span><span class="s">"build/react.js"</span><span class="nt">></script></span>
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<span class="nt"><script </span><span class="na">src=</span><span class="s">"build/JSXTransformer.js"</span><span class="nt">></script></span>
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<span class="nt"></head></span>
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<span class="nt"><body></span>
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<span class="nt"><div</span> <span class="na">id=</span><span class="s">"example"</span><span class="nt">></div></span>
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<span class="nt"><script </span><span class="na">type=</span><span class="s">"text/jsx"</span><span class="nt">></span>
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<span class="cm">/** @jsx React.DOM */</span>
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<span class="nx">React</span><span class="p">.</span><span class="nx">renderComponent</span><span class="p">(</span>
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<span class="o"><</span><span class="nx">h1</span><span class="o">></span><span class="nx">Hello</span><span class="p">,</span> <span class="nx">world</span><span class="o">!<</span><span class="err">/h1>,</span>
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<span class="nb">document</span><span class="p">.</span><span class="nx">getElementById</span><span class="p">(</span><span class="s1">'example'</span><span class="p">)</span>
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<span class="p">);</span>
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<span class="nt"></script></span>
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<span class="nt"></body></span>
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<span class="nt"></html></span>
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</code></pre></div>
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<p>The XML syntax inside of JavaScript is called JSX; check out the <a href="/react/docs/jsx-in-depth.html">JSX syntax</a> to learn more about it. In order to translate it to vanilla JavaScript we use <code><script type="text/jsx"></code> and include <code>JSXTransformer.js</code> to actually perform the transformation in the browser.</p>
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<h3><a class="anchor" name="separate-file"></a>Separate File <a class="hash-link" href="#separate-file">#</a></h3>
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<p>Your React JSX file can live in a separate file. Create the following <code>src/helloworld.js</code>.</p>
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<div class="highlight"><pre><code class="javascript language-javascript" data-lang="javascript"><span class="cm">/** @jsx React.DOM */</span>
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<span class="nx">React</span><span class="p">.</span><span class="nx">renderComponent</span><span class="p">(</span>
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<span class="o"><</span><span class="nx">h1</span><span class="o">></span><span class="nx">Hello</span><span class="p">,</span> <span class="nx">world</span><span class="o">!<</span><span class="err">/h1>,</span>
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<span class="nb">document</span><span class="p">.</span><span class="nx">getElementById</span><span class="p">(</span><span class="s1">'example'</span><span class="p">)</span>
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<span class="p">);</span>
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</code></pre></div>
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<p>Then reference it from <code>helloworld.html</code>:</p>
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<div class="highlight"><pre><code class="html language-html" data-lang="html"><span class="nt"><script </span><span class="na">type=</span><span class="s">"text/jsx"</span> <span class="na">src=</span><span class="s">"src/helloworld.js"</span><span class="nt">></script></span>
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</code></pre></div><h3><a class="anchor" name="offline-transform"></a>Offline Transform <a class="hash-link" href="#offline-transform">#</a></h3>
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<p>First install the command-line tools (requires <a href="http://npmjs.org/">npm</a>):</p>
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<div class="highlight"><pre><code class="text language-text" data-lang="text">npm install -g react-tools
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</code></pre></div>
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<p>Then, translate your <code>src/helloworld.js</code> file to plain JavaScript:</p>
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<div class="highlight"><pre><code class="text language-text" data-lang="text">jsx --watch src/ build/
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</code></pre></div>
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<p>The file <code>build/helloworld.js</code> is autogenerated whenever you make a change.</p>
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<div class="highlight"><pre><code class="javascript language-javascript" data-lang="javascript"><span class="cm">/** @jsx React.DOM */</span>
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<span class="nx">React</span><span class="p">.</span><span class="nx">renderComponent</span><span class="p">(</span>
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<span class="hll"> <span class="nx">React</span><span class="p">.</span><span class="nx">DOM</span><span class="p">.</span><span class="nx">h1</span><span class="p">(</span><span class="kc">null</span><span class="p">,</span> <span class="s1">'Hello, world!'</span><span class="p">),</span>
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</span> <span class="nb">document</span><span class="p">.</span><span class="nx">getElementById</span><span class="p">(</span><span class="s1">'example'</span><span class="p">)</span>
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<span class="p">);</span>
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</code></pre></div>
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<blockquote>
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<p>Note:</p>
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<p>The comment parser is very strict right now; in order for it to pick up the <code>@jsx</code> modifier, two conditions are required. The <code>@jsx</code> comment block must be the first comment on the file. The comment must start with <code>/**</code> (<code>/*</code> and <code>//</code> will not work). If the parser can't find the <code>@jsx</code> comment, it will output the file without transforming it.</p>
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</blockquote>
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<p>Update your HTML file as below:</p>
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<div class="highlight"><pre><code class="html language-html" data-lang="html"><span class="cp"><!DOCTYPE html></span>
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<span class="nt"><html></span>
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<span class="nt"><head></span>
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<span class="nt"><title></span>Hello React!<span class="nt"></title></span>
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<span class="nt"><script </span><span class="na">src=</span><span class="s">"build/react.js"</span><span class="nt">></script></span>
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<span class="hll"> <span class="c"><!-- No need for JSXTransformer! --></span>
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</span> <span class="nt"></head></span>
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<span class="nt"><body></span>
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<span class="nt"><div</span> <span class="na">id=</span><span class="s">"example"</span><span class="nt">></div></span>
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<span class="hll"> <span class="nt"><script </span><span class="na">src=</span><span class="s">"build/helloworld.js"</span><span class="nt">></script></span>
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</span> <span class="nt"></body></span>
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<span class="nt"></html></span>
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</code></pre></div><h2><a class="anchor" name="want-commonjs"></a>Want CommonJS? <a class="hash-link" href="#want-commonjs">#</a></h2>
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<p>If you want to use React within a module system, <a href="http://github.com/facebook/react">fork our repo</a>, <code>npm install</code> and run <code>grunt</code>. A nice set of CommonJS modules will be generated. Our <code>jsx</code> build tool can be integrated into most packaging systems (not just CommonJS) quite easily.</p>
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<h2><a class="anchor" name="next-steps"></a>Next Steps <a class="hash-link" href="#next-steps">#</a></h2>
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