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<h1>
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Cloning ReactElements
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<a class="edit-page-link" href="https://github.com/facebook/react/tree/master/docs/docs/10.5-clone-with-props.md" target="_blank">Edit on GitHub</a>
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</h1>
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<div class="subHeader"></div>
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<blockquote>
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<p>Note:
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<code>cloneWithProps</code> is deprecated. Use <a href="top-level-api.html#react.cloneelement">React.cloneElement</a> instead.</p>
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</blockquote>
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<p>In rare situations, you may want to create a copy of a React element with different props from those of the original element. One example is cloning the elements passed into <code>this.props.children</code> and rendering them with different props:</p>
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<div class="highlight"><pre><code class="language-js" data-lang="js"><span class="kd">var</span> <span class="nx">cloneWithProps</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'react-addons-clone-with-props'</span><span class="p">);</span>
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<span class="kd">var</span> <span class="nx">_makeBlue</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">element</span><span class="p">)</span> <span class="p">{</span>
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<span class="k">return</span> <span class="nx">cloneWithProps</span><span class="p">(</span><span class="nx">element</span><span class="p">,</span> <span class="p">{</span><span class="nx">style</span><span class="o">:</span> <span class="p">{</span><span class="nx">color</span><span class="o">:</span> <span class="s1">'blue'</span><span class="p">}});</span>
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<span class="p">};</span>
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<span class="kd">var</span> <span class="nx">Blue</span> <span class="o">=</span> <span class="nx">React</span><span class="p">.</span><span class="nx">createClass</span><span class="p">({</span>
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<span class="nx">render</span><span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
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<span class="kd">var</span> <span class="nx">blueChildren</span> <span class="o">=</span> <span class="nx">React</span><span class="p">.</span><span class="nx">Children</span><span class="p">.</span><span class="nx">map</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">props</span><span class="p">.</span><span class="nx">children</span><span class="p">,</span> <span class="nx">_makeBlue</span><span class="p">);</span>
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<span class="k">return</span> <span class="o"><</span><span class="nx">div</span><span class="o">></span><span class="p">{</span><span class="nx">blueChildren</span><span class="p">}</span><span class="o"><</span><span class="err">/div>;</span>
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<span class="p">}</span>
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<span class="p">});</span>
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<span class="nx">ReactDOM</span><span class="p">.</span><span class="nx">render</span><span class="p">(</span>
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<span class="o"><</span><span class="nx">Blue</span><span class="o">></span>
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<span class="o"><</span><span class="nx">p</span><span class="o">></span><span class="nx">This</span> <span class="nx">text</span> <span class="nx">is</span> <span class="nx">blue</span><span class="p">.</span><span class="o"><</span><span class="err">/p></span>
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<span class="o"><</span><span class="err">/Blue>,</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">'container'</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><code>cloneWithProps</code> does not transfer <code>key</code> or <code>ref</code> to the cloned element. <code>className</code> and <code>style</code> props are automatically merged.</p>
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A Facebook & Instagram collaboration.<br>
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© 2013–2016 Facebook Inc.<br>
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fjs.parentNode.insertBefore(js, fjs);
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}(document, 'script', 'facebook-jssdk'));
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</script>
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</body>
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</html>
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