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fofolee
84 lines
8.1 KiB
HTML
84 lines
8.1 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">jQuery.unique()</h1>
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<div class="entry-meta">
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所属分类：<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.unique/" target="_blank">jQuery.unique()</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-unique1"><h2 class="section-title">
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<span class="name">jQuery.unique( array )</span><span class="returns">返回: <a href="/Types/#Array">Array</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>删除数组中重复元素。只处理删除DOM元素数组，而不能处理字符串或者数字数组。</p>
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<ul class="signatures"><li class="signature" id="jQuery-unique-array">
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<h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.1.3/">1.1.3</a></span>jQuery.unique( array )</h4>
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<ul><li>
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<div><strong>array</strong></div>
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<div>类型: <a href="/Types/#Array">Array</a>
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</div>
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<div>DOM元素的数组。</div>
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</li></ul>
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</li></ul>
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<div class="longdesc" id="entry-longdesc">
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<p><code>$.unique()</code>函数通过搜索的数组对象，排序数组，并移除任何重复的节点。
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如果一个节点和已经在数组中的节点完全相同，那么它被认为是重复的;
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两个不同的节点具有相同的属性是被认为不重复的。
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此功能只适用于普通的JavaScript DOM元素的数组，主要是jQuery内部使用。你可能永远都不需要使用它。</p>
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<p>在jQuery 1.4中结果将始终按它们在文档顺序返回。</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">从数组中删除任何重复的div元素。</span></h4>
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<div class="syntaxhighlighter xml ">
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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">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 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>There are 6 divs in this document.<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><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 class="attribute">class</span>=<span class="value">"dup"</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 class="attribute">class</span>=<span class="value">"dup"</span>></span><span class="tag"></<span class="title">div</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">div</span> <span class="attribute">class</span>=<span class="value">"dup"</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><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> </code></div></div><div class="container"><div class="line"><code> <span class="keyword">var</span> divs = $(<span class="string">"div"</span>).get(); <span class="comment">// unique() must take a native array</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> <span class="comment">// add 3 elements of class dup too (they are divs)</span></code></div></div><div class="container"><div class="line"><code> divs = divs.concat($(<span class="string">".dup"</span>).get());</code></div></div><div class="container"><div class="line"><code> $(<span class="string">"div:eq(1)"</span>).text(<span class="string">"Pre-unique there are "</span> + divs.length + <span class="string">" elements."</span>);</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> divs = jQuery.unique(divs);</code></div></div><div class="container"><div class="line"><code> $(<span class="string">"div:eq(2)"</span>).text(<span class="string">"Post-unique there are "</span> + divs.length + <span class="string">" elements."</span>)</code></div></div><div class="container"><div class="line"><code> .css(<span class="string">"color"</span>, <span class="string">"red"</span>);</code></div></div><div class="container"><div class="line"><code><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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</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> |