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42 lines
2.7 KiB
HTML
42 lines
2.7 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">event.delegateTarget</h1>
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<div class="entry-meta">
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所属分类：<span class="category"><a href="/category/events/">事件</a> > <a href="/category/events/event-object/">事件对象</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/events/">事件</a></span>
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<span class="pull-right">英文文档：<a href="https://api.jquery123.com/event.delegateTarget/" target="_blank">event.delegateTarget</a></span>
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</div><!-- .entry-meta -->
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</header><!-- .entry-header -->
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<!-- .entry-header -->
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<div class="entry-content">
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<article class="entry property" id="event-delegateTarget1"><h2 class="section-title">
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<span>event.delegateTarget</span><span class="returns">返回: <a href="/Types/#Element">Element</a></span>
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</h2>
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<div class="entry-wrapper">
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<p class="desc"><strong>描述: </strong>绑定了当前正在调用jQuery 事件处理器的元素。</p>
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<ul class="signatures"><li class="signature"><h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.7/">1.7</a></span>event.delegateTarget</h4></li></ul>
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<div class="longdesc" id="entry-longdesc">
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<p>此属性经常用在是通过<a href="/delegate"><code>.delegate()</code></a> 或<a href="/on"><code>.on()</code></a>绑定委派的事件里，事件处理程序绑定在正在处理的元素的祖先上。它可用于，例如，在代理函数内使用它来识别并移除事件处理程序。</p>
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<p>对于委派事件处理程序而言，由于事件是直接绑定在元素上的，也就是<code>event.delegateTarget</code> 总是等价于<code>event.currentTarget</code>.</p>
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</div>
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<section class="entry-examples" id="entry-examples"><header><h2 class="underline">例子:</h2></header><div class="entry-example" id="example-0">
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<h4><span class="desc">点击任何在 box 样式里的按钮时，将 box 样式的背景色变成红色。</span></h4>
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<div class="syntaxhighlighter javascript ">
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<div class="line n1">1</div>
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<div class="line n2">2</div>
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<div class="line n3">3</div>
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</td>
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<td class="code">
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<pre><div class="container"><div class="line"><code>$(<span class="string">".box"</span>).on(<span class="string">"click"</span>, <span class="string">"button"</span>, <span class="keyword">function</span>(event) {</code></div></div><div class="container"><div class="line"><code> $(event.delegateTarget).css(<span class="string">"background-color"</span>, <span class="string">"red"</span>);</code></div></div><div class="container"><div class="line"><code>}); </code></div></div></pre>
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</td>
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</table>
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</div>
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</div></section>
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</div></article> </div>
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