mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Paul O’Shannessy
538 lines
25 KiB
HTML
538 lines
25 KiB
HTML
<!DOCTYPE html>
|
|
<!--[if IE]><![endif]-->
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
|
|
<title>Test Utilities | React</title>
|
|
<meta name="viewport" content="width=device-width">
|
|
<meta property="og:title" content="Test Utilities | React">
|
|
<meta property="og:type" content="website">
|
|
<meta property="og:url" content="http://facebook.github.io/react/docs/test-utils.html">
|
|
<meta property="og:image" content="http://facebook.github.io/react/img/logo_og.png">
|
|
<meta property="og:description" content="A JavaScript library for building user interfaces">
|
|
<meta property="fb:app_id" content="623268441017527">
|
|
|
|
<link rel="shortcut icon" href="/react/favicon.ico">
|
|
<link rel="alternate" type="application/rss+xml" title="React" href="http://facebook.github.io/react/feed.xml">
|
|
|
|
<link rel="stylesheet" href="/react/css/syntax.css">
|
|
<link rel="stylesheet" href="/react/css/codemirror.css">
|
|
<link rel="stylesheet" href="/react/css/react.css">
|
|
|
|
<script type="text/javascript" src="//use.typekit.net/vqa1hcx.js"></script>
|
|
<script type="text/javascript">try{Typekit.load();}catch(e){}</script>
|
|
|
|
<!--[if lte IE 8]>
|
|
<script type="text/javascript" src="/react/js/html5shiv.min.js"></script>
|
|
<script type="text/javascript" src="/react/js/es5-shim.min.js"></script>
|
|
<script type="text/javascript" src="/react/js/es5-sham.min.js"></script>
|
|
<![endif]-->
|
|
<script type="text/javascript" src="/react/js/codemirror.js"></script>
|
|
<script type="text/javascript" src="/react/js/javascript.js"></script>
|
|
<script type="text/javascript" src="/react/js/react.js"></script>
|
|
<script type="text/javascript" src="/react/js/JSXTransformer.js"></script>
|
|
<script type="text/javascript" src="/react/js/live_editor.js"></script>
|
|
<script type="text/javascript" src="/react/js/showdown.js"></script>
|
|
</head>
|
|
<body>
|
|
|
|
<div class="container">
|
|
|
|
<div class="nav-main">
|
|
<div class="wrap">
|
|
<a class="nav-home" href="/react/index.html">
|
|
<img class="nav-logo" src="/react/img/logo.svg" width="36" height="36">
|
|
React
|
|
</a>
|
|
<ul class="nav-site">
|
|
<li><a href="/react/docs/getting-started.html" class="active">docs</a></li>
|
|
<li><a href="/react/support.html">support</a></li>
|
|
<li><a href="/react/downloads.html">download</a></li>
|
|
<li><a href="/react/blog/">blog</a></li>
|
|
<li><a href="http://github.com/facebook/react">github</a>
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
|
|
<section class="content wrap documentationContent">
|
|
<div class="nav-docs">
|
|
<!-- Docs Nav -->
|
|
|
|
<div class="nav-docs-section">
|
|
<h3>Quick Start</h3>
|
|
<ul>
|
|
|
|
<li>
|
|
<a href="/react/docs/getting-started.html">
|
|
Getting Started
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/tutorial.html">
|
|
Tutorial
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/thinking-in-react.html">
|
|
Thinking in React
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
</div>
|
|
|
|
<div class="nav-docs-section">
|
|
<h3>Community Resources</h3>
|
|
<ul>
|
|
|
|
<li>
|
|
<a href="/react/docs/videos.html">
|
|
Videos
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/complementary-tools.html">
|
|
Complementary Tools
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/examples.html">
|
|
Examples
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
</div>
|
|
|
|
<div class="nav-docs-section">
|
|
<h3>Guides</h3>
|
|
<ul>
|
|
|
|
<li>
|
|
<a href="/react/docs/why-react.html">
|
|
Why React?
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/displaying-data.html">
|
|
Displaying Data
|
|
</a>
|
|
|
|
<ul>
|
|
|
|
<li>
|
|
<a href="/react/docs/jsx-in-depth.html">
|
|
JSX in Depth
|
|
</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/jsx-gotchas.html">
|
|
JSX Gotchas
|
|
</a>
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/interactivity-and-dynamic-uis.html">
|
|
Interactivity and Dynamic UIs
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/multiple-components.html">
|
|
Multiple Components
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/reusable-components.html">
|
|
Reusable Components
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/forms.html">
|
|
Forms
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/working-with-the-browser.html">
|
|
Working With the Browser
|
|
</a>
|
|
|
|
<ul>
|
|
|
|
<li>
|
|
<a href="/react/docs/more-about-refs.html">
|
|
More About Refs
|
|
</a>
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/tooling-integration.html">
|
|
Tooling Integration
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/addons.html">
|
|
Add-Ons
|
|
</a>
|
|
|
|
<ul>
|
|
|
|
<li>
|
|
<a href="/react/docs/animation.html">
|
|
Animation
|
|
</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/two-way-binding-helpers.html">
|
|
Two-Way Binding Helpers
|
|
</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/class-name-manipulation.html">
|
|
Class Name Manipulation
|
|
</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/test-utils.html" class="active">
|
|
Test Utilities
|
|
</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/clone-with-props.html">
|
|
Cloning Components
|
|
</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/update.html">
|
|
Immutability Helpers
|
|
</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/pure-render-mixin.html">
|
|
PureRenderMixin
|
|
</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/perf.html">
|
|
Performance Tools
|
|
</a>
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
</div>
|
|
|
|
<div class="nav-docs-section">
|
|
<h3>Reference</h3>
|
|
<ul>
|
|
|
|
<li>
|
|
<a href="/react/docs/top-level-api.html">
|
|
Top-Level API
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/component-api.html">
|
|
Component API
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/component-specs.html">
|
|
Component Specs and Lifecycle
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/tags-and-attributes.html">
|
|
Supported Tags and Attributes
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/events.html">
|
|
Event System
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/dom-differences.html">
|
|
DOM Differences
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/special-non-dom-attributes.html">
|
|
Special Non-DOM Attributes
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/reconciliation.html">
|
|
Reconciliation
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
</div>
|
|
|
|
<div class="nav-docs-section">
|
|
<h3>Flux</h3>
|
|
<ul>
|
|
|
|
<li>
|
|
<a href="/react/docs/flux-overview.html">
|
|
Flux Overview
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/docs/flux-todo-list.html">
|
|
Flux TodoMVC Tutorial
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
</div>
|
|
|
|
|
|
<!-- Tips Nav -->
|
|
|
|
<div class="nav-docs-section">
|
|
<h3>Tips</h3>
|
|
<ul>
|
|
|
|
<li>
|
|
<a href="/react/tips/introduction.html">Introduction</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/inline-styles.html">Inline Styles</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/if-else-in-JSX.html">If-Else in JSX</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/self-closing-tag.html">Self-Closing Tag</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/maximum-number-of-jsx-root-nodes.html">Maximum Number of JSX Root Nodes</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/style-props-value-px.html">Shorthand for Specifying Pixel Values in style props</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/children-props-type.html">Type of the Children props</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/controlled-input-null-value.html">Value of null for Controlled Input</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/componentWillReceiveProps-not-triggered-after-mounting.html">componentWillReceiveProps Not Triggered After Mounting</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/props-in-getInitialState-as-anti-pattern.html">Props in getInitialState Is an Anti-Pattern</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/dom-event-listeners.html">DOM Event Listeners in a Component</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/initial-ajax.html">Load Initial Data via AJAX</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/false-in-jsx.html">False in JSX</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/communicate-between-components.html">Communicate Between Components</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/expose-component-functions.html">Expose Component Functions</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/references-to-components.html">References to Components</a>
|
|
</li>
|
|
|
|
<li>
|
|
<a href="/react/tips/children-undefined.html">this.props.children undefined</a>
|
|
</li>
|
|
|
|
</ul>
|
|
</div>
|
|
|
|
</div>
|
|
|
|
|
|
<div class="inner-content">
|
|
<h1>
|
|
Test Utilities
|
|
<a class="edit-page-link" href="https://github.com/facebook/react/tree/master/docs/docs/09.4-test-utils.md" target="_blank">Edit on GitHub</a>
|
|
</h1>
|
|
<div class="subHeader"></div>
|
|
|
|
<p><code>React.addons.TestUtils</code> makes it easy to test React components in the testing framework of your choice (we use <a href="http://facebook.github.io/jest/">Jest</a>).</p>
|
|
<h3><a class="anchor" name="simulate"></a>Simulate <a class="hash-link" href="#simulate">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">Simulate</span><span class="p">.{</span><span class="nx">eventName</span><span class="p">}(</span><span class="nx">DOMElement</span> <span class="nx">element</span><span class="p">,</span> <span class="nx">object</span> <span class="nx">eventData</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Simulate an event dispatch on a DOM node with optional <code>eventData</code> event data. <strong>This is possibly the single most useful utility in <code>ReactTestUtils</code>.</strong></p>
|
|
|
|
<p>Example usage:</p>
|
|
<div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">refs</span><span class="p">.</span><span class="nx">input</span><span class="p">.</span><span class="nx">getDOMNode</span><span class="p">();</span>
|
|
<span class="nx">React</span><span class="p">.</span><span class="nx">addons</span><span class="p">.</span><span class="nx">TestUtils</span><span class="p">.</span><span class="nx">Simulate</span><span class="p">.</span><span class="nx">click</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span>
|
|
<span class="nx">React</span><span class="p">.</span><span class="nx">addons</span><span class="p">.</span><span class="nx">TestUtils</span><span class="p">.</span><span class="nx">Simulate</span><span class="p">.</span><span class="nx">change</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span>
|
|
<span class="nx">React</span><span class="p">.</span><span class="nx">addons</span><span class="p">.</span><span class="nx">TestUtils</span><span class="p">.</span><span class="nx">Simulate</span><span class="p">.</span><span class="nx">keyDown</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="p">{</span><span class="nx">key</span><span class="o">:</span> <span class="s2">"Enter"</span><span class="p">});</span>
|
|
</code></pre></div>
|
|
<p><code>Simulate</code> has a method for every event that React understands.</p>
|
|
<h3><a class="anchor" name="renderintodocument"></a>renderIntoDocument <a class="hash-link" href="#renderintodocument">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">ReactComponent</span> <span class="nx">renderIntoDocument</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">instance</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Render a component into a detached DOM node in the document. <strong>This function requires a DOM.</strong></p>
|
|
<h3><a class="anchor" name="mockcomponent"></a>mockComponent <a class="hash-link" href="#mockcomponent">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">object</span> <span class="nx">mockComponent</span><span class="p">(</span><span class="kd">function</span> <span class="nx">componentClass</span><span class="p">,</span> <span class="nx">string</span><span class="o">?</span> <span class="nx">tagName</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Pass a mocked component module to this method to augment it with useful methods that allow it to be used as a dummy React component. Instead of rendering as usual, the component will become a simple <code><div></code> (or other tag if <code>mockTagName</code> is provided) containing any provided children.</p>
|
|
<h3><a class="anchor" name="isdescriptoroftype"></a>isDescriptorOfType <a class="hash-link" href="#isdescriptoroftype">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="kr">boolean</span> <span class="nx">isDescriptorOfType</span><span class="p">(</span><span class="nx">ReactDescriptor</span> <span class="nx">descriptor</span><span class="p">,</span> <span class="kd">function</span> <span class="nx">componentClass</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Returns true if <code>descriptor</code> is an instance of a React <code>componentClass</code>.</p>
|
|
<h3><a class="anchor" name="isdomcomponent"></a>isDOMComponent <a class="hash-link" href="#isdomcomponent">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="kr">boolean</span> <span class="nx">isDOMComponent</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">instance</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Returns true if <code>instance</code> is a DOM component (such as a <code><div></code> or <code><span></code>).</p>
|
|
<h3><a class="anchor" name="iscompositecomponent"></a>isCompositeComponent <a class="hash-link" href="#iscompositecomponent">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="kr">boolean</span> <span class="nx">isCompositeComponent</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">instance</span><span class="p">)</span><span class="err">`</span>
|
|
</code></pre></div>
|
|
<p>Returns true if <code>instance</code> is a composite component (created with <code>React.createClass()</code>)</p>
|
|
<h3><a class="anchor" name="iscompositecomponentwithtype"></a>isCompositeComponentWithType <a class="hash-link" href="#iscompositecomponentwithtype">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="kr">boolean</span> <span class="nx">isCompositeComponentWithType</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">instance</span><span class="p">,</span> <span class="kd">function</span> <span class="nx">componentClass</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>The combination of <code>isComponentOfType()</code> and <code>isCompositeComponent()</code>.</p>
|
|
<h3><a class="anchor" name="istextcomponent"></a>isTextComponent <a class="hash-link" href="#istextcomponent">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="kr">boolean</span> <span class="nx">isTextComponent</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">instance</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Returns true if <code>instance</code> is a plain text component.</p>
|
|
<h3><a class="anchor" name="findallinrenderedtree"></a>findAllInRenderedTree <a class="hash-link" href="#findallinrenderedtree">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">array</span> <span class="nx">findAllInRenderedTree</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">tree</span><span class="p">,</span> <span class="kd">function</span> <span class="nx">test</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Traverse all components in <code>tree</code> and accumulate all components where <code>test(component)</code> is true. This is not that useful on its own, but it's used as a primitive for other test utils.</p>
|
|
<h3><a class="anchor" name="scryrendereddomcomponentswithclass"></a>scryRenderedDOMComponentsWithClass <a class="hash-link" href="#scryrendereddomcomponentswithclass">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">array</span> <span class="nx">scryRenderedDOMComponentsWithClass</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">tree</span><span class="p">,</span> <span class="nx">string</span> <span class="nx">className</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Finds all instances of components in the rendered tree that are DOM components with the class name matching <code>className</code>.</p>
|
|
<h3><a class="anchor" name="findrendereddomcomponentwithclass"></a>findRenderedDOMComponentWithClass <a class="hash-link" href="#findrendereddomcomponentwithclass">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">ReactComponent</span> <span class="nx">findRenderedDOMComponentWithClass</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">tree</span><span class="p">,</span> <span class="nx">string</span> <span class="nx">className</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Like <code>scryRenderedDOMComponentsWithClass()</code> but expects there to be one result, and returns that one result, or throws exception if there is any other number of matches besides one.</p>
|
|
<h3><a class="anchor" name="scryrendereddomcomponentswithtag"></a>scryRenderedDOMComponentsWithTag <a class="hash-link" href="#scryrendereddomcomponentswithtag">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">array</span> <span class="nx">scryRenderedDOMComponentsWithTag</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">tree</span><span class="p">,</span> <span class="nx">string</span> <span class="nx">tagName</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Finds all instances of components in the rendered tree that are DOM components with the tag name matching <code>tagName</code>.</p>
|
|
<h3><a class="anchor" name="findrendereddomcomponentwithtag"></a>findRenderedDOMComponentWithTag <a class="hash-link" href="#findrendereddomcomponentwithtag">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">ReactComponent</span> <span class="nx">findRenderedDOMComponentWithTag</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">tree</span><span class="p">,</span> <span class="nx">string</span> <span class="nx">tagName</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Like <code>scryRenderedDOMComponentsWithTag()</code> but expects there to be one result, and returns that one result, or throws exception if there is any other number of matches besides one.</p>
|
|
<h3><a class="anchor" name="scryrenderedcomponentswithtype"></a>scryRenderedComponentsWithType <a class="hash-link" href="#scryrenderedcomponentswithtype">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">array</span> <span class="nx">scryRenderedComponentsWithType</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">tree</span><span class="p">,</span> <span class="kd">function</span> <span class="nx">componentClass</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Finds all instances of components with type equal to <code>componentClass</code>.</p>
|
|
<h3><a class="anchor" name="findrenderedcomponentwithtype"></a>findRenderedComponentWithType <a class="hash-link" href="#findrenderedcomponentwithtype">#</a></h3><div class="highlight"><pre><code class="language-javascript" data-lang="javascript"><span class="nx">ReactComponent</span> <span class="nx">findRenderedComponentWithType</span><span class="p">(</span><span class="nx">ReactComponent</span> <span class="nx">tree</span><span class="p">,</span> <span class="kd">function</span> <span class="nx">componentClass</span><span class="p">)</span>
|
|
</code></pre></div>
|
|
<p>Same as <code>scryRenderedComponentsWithType()</code> but expects there to be one result and returns that one result, or throws exception if there is any other number of matches besides one.</p>
|
|
|
|
|
|
<div class="docs-prevnext">
|
|
|
|
<a class="docs-prev" href="/react/docs/class-name-manipulation.html">← Prev</a>
|
|
|
|
|
|
<a class="docs-next" href="/react/docs/clone-with-props.html">Next →</a>
|
|
|
|
</div>
|
|
</div>
|
|
</section>
|
|
|
|
|
|
<footer class="wrap">
|
|
<div class="left">
|
|
A Facebook & Instagram collaboration.<br>
|
|
<a href="/react/acknowledgements.html">Acknowledgements</a>
|
|
</div>
|
|
<div class="right">© 2014 Facebook Inc.</div>
|
|
</footer>
|
|
</div>
|
|
<div id="fb-root"></div>
|
|
|
|
<script>
|
|
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
|
|
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
|
|
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
|
|
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
|
|
ga('create', 'UA-41298772-1', 'facebook.github.io');
|
|
ga('send', 'pageview');
|
|
|
|
!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="https://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");
|
|
|
|
(function(d, s, id) {
|
|
var js, fjs = d.getElementsByTagName(s)[0];
|
|
if (d.getElementById(id)) return;
|
|
js = d.createElement(s); js.id = id;
|
|
js.src = "//connect.facebook.net/en_US/all.js#xfbml=1&appId=623268441017527";
|
|
fjs.parentNode.insertBefore(js, fjs);
|
|
}(document, 'script', 'facebook-jssdk'));
|
|
</script>
|
|
</body>
|
|
</html>
|