uTools-Manuals/docs/jQuery/toggle-event.html

<article class="" id="post-">
<header class="entry-header">
<h1 class="entry-title">.toggle()</h1>
<div class="entry-meta">
						所属分类：<span class="category"><a href="/category/events/">事件</a> &gt; <a href="/category/events/mouse-events/">鼠标事件</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/deprecated/">弃用</a> &gt; <a href="/category/deprecated/deprecated-1.8/">1.8 版本弃用的 API</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/removed/">已删除的函数</a></span>
<span class="pull-right">英文文档：<a href="https://api.jquery123.com/toggle-event/" target="_blank">.toggle()</a></span>
</div><!-- .entry-meta -->
</header><!-- .entry-header -->
<!-- .entry-header -->
<div class="entry-content">
<article class="entry method" id="toggle1"><h2 class="section-title">
<span class="name">.toggle( handler(eventObject), handler(eventObject) [, handler(eventObject) ] )</span><span class="returns">返回: <a href="/Types/#jQuery">jQuery</a></span><span class="version-details">version deprecated: <a href="/category/version/1.8/">1.8</a>, removed: <a href="/category/version/1.9/">1.9</a></span>
</h2>
<div class="entry-wrapper">
<p class="desc"><strong>描述: </strong>绑定两个或多个处理程序绑定到匹配的元素，用来执行在交替的点击。</p>
<ul class="signatures"><li class="signature" id="toggle-handlereventObject-handlereventObject-handlereventObject">
<h4 class="name">
<span class="version-details">添加的版本: <a href="/category/version/1.0/">1.0</a></span>.toggle( handler(eventObject), handler(eventObject) [, handler(eventObject) ] )</h4>
<ul>
<li>
<div><strong>handler(eventObject)</strong></div>
<div>类型: <a href="/Types/#Function">Function</a>()</div>
<div>第一数（奇数）次点击时要执行的函数。</div>
</li>
<li>
<div><strong>handler(eventObject)</strong></div>
<div>类型: <a href="/Types/#Function">Function</a>()</div>
<div>第二数（偶数）次点击时要执行的函数。</div>
</li>
<li>
<div><strong>handler(eventObject)</strong></div>
<div>类型: <a href="/Types/#Function">Function</a>()</div>
<div>更多次点击时要执行的函数。</div>
</li>
</ul>
</li></ul>
<div class="longdesc" id="entry-longdesc">
<blockquote>
<p>注意: 这个方法在jQuery 1，8中宣告过时，在jQuery 1.9中已经移除；jQuery animation 也有一个名为<a href="/toggle">.toggle()</a>方法。哪一个被调用取决于传递的参数的设置。</p>
</blockquote>
<p><code>.toggle()</code>方法的处理程序绑定一个<code>click</code>事件，因此，对于 <code>click</code> 事件适用的规则，同样也适用于该事件。</p>
<p>举例来说，请看下面的HTML：</p>
<div class="syntaxhighlighter javascript nogutter">
<table>
<tbody>
<tr>
<td class="gutter">
<div class="line n1">1</div>
<div class="line n2">2</div>
<div class="line n3">3</div>
<div class="line n4">4</div>
</td>
<td class="code">
<pre><div class="container"><div class="line"><code>For example, consider the HTML:</code></div></div><div class="container"><div class="line"><code><span class="xml"><span class="tag">&lt;<span class="title">div</span> <span class="attribute">id</span>=<span class="value">"target"</span>&gt;</span></span></code></div></div><div class="container"><div class="line"><code>  Click here</code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">div</span>&gt;</span></code></div></div></pre>
</td>
</tr>
</tbody>
</table>
</div>
<p class="image"><img alt="" src="images/0042_05_05.png"/></p>
<p>这个事件处理程序可以绑定到<code>&lt;div&gt;</code>:</p>
<div class="syntaxhighlighter javascript nogutter">
<table>
<tbody>
<tr>
<td class="gutter">
<div class="line n1">1</div>
<div class="line n2">2</div>
<div class="line n3">3</div>
<div class="line n4">4</div>
<div class="line n5">5</div>
</td>
<td class="code">
<pre><div class="container"><div class="line"><code>$(<span class="string">'#target'</span>).toggle(<span class="keyword">function</span>() {</code></div></div><div class="container"><div class="line"><code>  alert(<span class="string">'First handler for .toggle() called.'</span>);</code></div></div><div class="container"><div class="line"><code>}, <span class="keyword">function</span>() {</code></div></div><div class="container"><div class="line"><code>  alert(<span class="string">'Second handler for .toggle() called.'</span>);</code></div></div><div class="container"><div class="line"><code>});</code></div></div></pre>
</td>
</tr>
</tbody>
</table>
</div>
<p>这样元素被点击多次，信息提示：</p>
<p>
<span class="output">First handler for .toggle() called.</span>
<br/>
<span class="output">Second handler for .toggle() called.</span>
<br/>
<span class="output">First handler for .toggle() called.</span>
<br/>
<span class="output">Second handler for .toggle() called.</span>
<br/>
<span class="output">First handler for .toggle() called.</span>
</p>
<p>如果提供两个以上的处理函数，<code>.toggle()</code>将在它们中循环。例如，如果有三个处理程序，那么第一次点击，点击第四，第七点击后第一个处理程序将被调用等等。</p>
<p><code>.toggle()</code> 方法提供了方便。 这是比较简单的手法来实现相同的行为，并且这可能是必要的，如果假设内置的<code>.toggle()</code>被证明是限制的。例如，如果在相同的元素上绑定了两个 <code>.toggle()</code>事件，那么无法保证它们能正确的工作。因为 <code>.toggle()</code> 内部使用了 <code>click</code>  进行处理，所以我们必须先解除 <code>click</code>  事件的绑定，移除 <code>.toggle()</code> 的附属行为。这样的话，其它的 <code>click</code>  处理，就会出现麻烦。在 .<code>.toggle()</code> 的实现中，同样调用了 <code>.preventDefault()</code>，因此，链接将不会被触发。并且，如果已经调用了元素上的 <code>.toggle()</code>事件，那么，按钮的点击事件也不会被触发。</p>
</div>
<section class="entry-examples" id="entry-examples"><header><h2 class="underline">例子:</h2></header><div class="entry-example" id="example-0">
<h4>Example: <span class="desc">点击列表项，切换它们的高亮效果。</span>
</h4>
<div class="syntaxhighlighter xml ">
<table>
<tbody>
<tr>
<td class="gutter">
<div class="line n1">1</div>
<div class="line n2">2</div>
<div class="line n3">3</div>
<div class="line n4">4</div>
<div class="line n5">5</div>
<div class="line n6">6</div>
<div class="line n7">7</div>
<div class="line n8">8</div>
<div class="line n9">9</div>
<div class="line n10">10</div>
<div class="line n11">11</div>
<div class="line n12">12</div>
<div class="line n13">13</div>
<div class="line n14">14</div>
<div class="line n15">15</div>
<div class="line n16">16</div>
<div class="line n17">17</div>
<div class="line n18">18</div>
<div class="line n19">19</div>
<div class="line n20">20</div>
<div class="line n21">21</div>
<div class="line n22">22</div>
<div class="line n23">23</div>
<div class="line n24">24</div>
<div class="line n25">25</div>
<div class="line n26">26</div>
<div class="line n27">27</div>
<div class="line n28">28</div>
<div class="line n29">29</div>
<div class="line n30">30</div>
<div class="line n31">31</div>
<div class="line n32">32</div>
<div class="line n33">33</div>
<div class="line n34">34</div>
</td>
<td class="code">
<pre><div class="container"><div class="line"><code><span class="doctype">&lt;!DOCTYPE html&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">html</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">head</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">style</span>&gt;</span><span class="css"></span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">ul</span> <span class="rules">{ <span class="rule"><span class="attribute">margin</span>:<span class="value"><span class="number">10</span>px;</span></span> <span class="rule"><span class="attribute">list-style</span>:<span class="value">inside circle;</span></span> <span class="rule"><span class="attribute">font-weight</span>:<span class="value">bold;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">li</span> <span class="rules">{ <span class="rule"><span class="attribute">cursor</span>:<span class="value">pointer;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;/<span class="title">style</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"https://code.jquery.com/jquery-latest.js"</span>&gt;</span><span class="javascript"></span><span class="tag">&lt;/<span class="title">script</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">head</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">body</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">ul</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">li</span>&gt;</span>Go to the store<span class="tag">&lt;/<span class="title">li</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">li</span>&gt;</span>Pick up dinner<span class="tag">&lt;/<span class="title">li</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">li</span>&gt;</span>Debug crash<span class="tag">&lt;/<span class="title">li</span>&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>    <span class="tag">&lt;<span class="title">li</span>&gt;</span>Take a jog<span class="tag">&lt;/<span class="title">li</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;/<span class="title">ul</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">script</span>&gt;</span><span class="javascript"></span></code></div></div><div class="container"><div class="line"><code>    $(<span class="string">"li"</span>).toggle(</code></div></div><div class="container"><div class="line"><code>      <span class="function"><span class="keyword">function</span> <span class="params">()</span> {</span></code></div></div><div class="container"><div class="line"><code>        $(<span class="keyword">this</span>).css({<span class="string">"list-style-type"</span>:<span class="string">"disc"</span>, <span class="string">"color"</span>:<span class="string">"blue"</span>});</code></div></div><div class="container"><div class="line"><code>      },</code></div></div><div class="container"><div class="line"><code>      <span class="function"><span class="keyword">function</span> <span class="params">()</span> {</span></code></div></div><div class="container"><div class="line"><code>        $(<span class="keyword">this</span>).css({<span class="string">"list-style-type"</span>:<span class="string">"disc"</span>, <span class="string">"color"</span>:<span class="string">"red"</span>});</code></div></div><div class="container"><div class="line"><code>      },</code></div></div><div class="container"><div class="line"><code>      <span class="function"><span class="keyword">function</span> <span class="params">()</span> {</span></code></div></div><div class="container"><div class="line"><code>        $(<span class="keyword">this</span>).css({<span class="string">"list-style-type"</span>:<span class="string">""</span>, <span class="string">"color"</span>:<span class="string">""</span>});</code></div></div><div class="container"><div class="line"><code>      }</code></div></div><div class="container"><div class="line"><code>    );</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">script</span>&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">body</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">html</span>&gt;</span></code></div></div></pre>
</td>
</tr>
</tbody>
</table>
</div>
<h4>Demo:</h4>
<div class="demo code-demo"></div>
</div>
<div class="entry-example" id="example-1">
<h4>Example: <span class="desc">切换表格的样式：</span>
</h4>
<div class="syntaxhighlighter javascript ">
<table>
<tbody>
<tr>
<td class="gutter">
<div class="line n1">1</div>
<div class="line n2">2</div>
<div class="line n3">3</div>
<div class="line n4">4</div>
<div class="line n5">5</div>
<div class="line n6">6</div>
<div class="line n7">7</div>
<div class="line n8">8</div>
</td>
<td class="code">
<pre><div class="container"><div class="line"><code>$(<span class="string">"td"</span>).toggle(</code></div></div><div class="container"><div class="line"><code>  <span class="function"><span class="keyword">function</span> <span class="params">()</span> {</span></code></div></div><div class="container"><div class="line"><code>    $(<span class="keyword">this</span>).addClass(<span class="string">"selected"</span>);</code></div></div><div class="container"><div class="line"><code>  },</code></div></div><div class="container"><div class="line"><code>  <span class="function"><span class="keyword">function</span> <span class="params">()</span> {</span></code></div></div><div class="container"><div class="line"><code>    $(<span class="keyword">this</span>).removeClass(<span class="string">"selected"</span>);</code></div></div><div class="container"><div class="line"><code>  }</code></div></div><div class="container"><div class="line"><code>);</code></div></div></pre>
</td>
</tr>
</tbody>
</table>
</div>
</div></section>
</div></article> </div>
</article>