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fofolee
84 lines
8.4 KiB
HTML
84 lines
8.4 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">jQuery.removeData()</h1>
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<div class="entry-meta">
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所属分类：<span class="category"><a href="/category/data/">数据操作</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/utilities/">工具类</a></span>
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<span class="pull-right">英文文档：<a href="https://api.jquery123.com/jQuery.removeData/" target="_blank">jQuery.removeData()</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 method" id="jQuery-removeData1"><h2 class="section-title">
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<span class="name">jQuery.removeData( element [, name ] )</span><span class="returns">返回: <a href="/Types/#jQuery">jQuery</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>删除一个先前存储的数据片段。</p>
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<ul class="signatures"><li class="signature" id="jQuery-removeData-element-name">
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<h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.2.3/">1.2.3</a></span>jQuery.removeData( element [, name ] )</h4>
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<ul>
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<li>
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<div><strong>element</strong></div>
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<div>类型: <a href="/Types/#Element">Element</a>
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</div>
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<div>要移除数据的DOM对象</div>
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</li>
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<li>
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<div><strong>name</strong></div>
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<div>类型: <a href="/Types/#String">String</a>
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</div>
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<div>要移除的存储数据名.</div>
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</li>
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</ul>
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</li></ul>
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<div class="longdesc" id="entry-longdesc">
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<p><strong>注意</strong>这是一个底层的方法，你应该用<code><a href="/removeData">.removeData()</a></code>代替。 </p>
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<p>
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<code>jQuery.removeData()</code>方法允许我们移除用<code><a href="/jQuery.data">jQuery.data()</a></code>绑定的值。当带name参数调用的时候，<code>jQuery.removeData()</code>将删除那个特有的值，当不带任何参数的时候，所有的值将被移除。</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">设置两个数据，然后再删除其中一个。</span></h4>
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<div class="syntaxhighlighter xml ">
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<table>
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<tbody>
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<tr>
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<td class="gutter">
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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="doctype"><!DOCTYPE html></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">html</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">head</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">style</span>></span><span class="css"></span></code></div></div><div class="container"><div class="line"><code> <span class="tag">div</span> <span class="rules">{ <span class="rule"><span class="attribute">margin</span>:<span class="value"><span class="number">2</span>px;</span></span> <span class="rule"><span class="attribute">color</span>:<span class="value">blue;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code> <span class="tag">span</span> <span class="rules">{ <span class="rule"><span class="attribute">color</span>:<span class="value">red;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"></<span class="title">style</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"https://code.jquery.com/jquery-latest.js"</span>></span><span class="javascript"></span><span class="tag"></<span class="title">script</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">head</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">body</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">div</span>></span>value1 before creation: <span class="tag"><<span class="title">span</span>></span><span class="tag"></<span class="title">span</span>></span><span class="tag"></<span class="title">div</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">div</span>></span>value1 after creation: <span class="tag"><<span class="title">span</span>></span><span class="tag"></<span class="title">span</span>></span><span class="tag"></<span class="title">div</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">div</span>></span>value1 after removal: <span class="tag"><<span class="title">span</span>></span><span class="tag"></<span class="title">span</span>></span><span class="tag"></<span class="title">div</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">div</span>></span>value2 after removal: <span class="tag"><<span class="title">span</span>></span><span class="tag"></<span class="title">span</span>></span><span class="tag"></<span class="title">div</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">script</span>></span><span class="javascript"></span></code></div></div><div class="container"><div class="line"><code><span class="keyword">var</span> div = $(<span class="string">"div"</span>)[<span class="number">0</span>];</code></div></div><div class="container"><div class="line"><code>$(<span class="string">"span:eq(0)"</span>).text(<span class="string">""</span> + $(<span class="string">"div"</span>).data(<span class="string">"test1"</span>));</code></div></div><div class="container"><div class="line"><code>jQuery.data(div, <span class="string">"test1"</span>, <span class="string">"VALUE-1"</span>);</code></div></div><div class="container"><div class="line"><code>jQuery.data(div, <span class="string">"test2"</span>, <span class="string">"VALUE-2"</span>);</code></div></div><div class="container"><div class="line"><code>$(<span class="string">"span:eq(1)"</span>).text(<span class="string">""</span> + jQuery.data(div, <span class="string">"test1"</span>));</code></div></div><div class="container"><div class="line"><code>jQuery.removeData(div, <span class="string">"test1"</span>);</code></div></div><div class="container"><div class="line"><code>$(<span class="string">"span:eq(2)"</span>).text(<span class="string">""</span> + jQuery.data(div, <span class="string">"test1"</span>));</code></div></div><div class="container"><div class="line"><code>$(<span class="string">"span:eq(3)"</span>).text(<span class="string">""</span> + jQuery.data(div, <span class="string">"test2"</span>));<span class="tag"></<span class="title">script</span>></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">body</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">html</span>></span></code></div></div></pre>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<h4>Demo:</h4>
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<div class="demo code-demo"></div>
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</div></section>
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</div></article> </div>
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</article> |