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fofolee
115 lines
11 KiB
HTML
115 lines
11 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">.parentsUntil()</h1>
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<div class="entry-meta">
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所属分类：<span class="category"><a href="/category/traversing/">遍历</a> > <a href="/category/traversing/tree-traversal/">树遍历</a></span>
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<span class="pull-right">英文文档：<a href="https://api.jquery123.com/parentsUntil/" target="_blank">.parentsUntil()</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="parentsUntil1"><h2 class="section-title">
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<span class="name">.parentsUntil( [selector ] [, filter ] )</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>查找当前元素的所有的前辈元素，直到遇到选择器， DOM 节点或 jQuery 对象匹配的元素为止，但不包括这些元素。</p>
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<ul class="signatures">
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<li class="signature" id="parentsUntil-selector-filter">
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<h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.4/">1.4</a></span>.parentsUntil( [selector ] [, filter ] )</h4>
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<ul>
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<li>
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<div><strong>selector</strong></div>
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<div>类型: <a href="/Types/#Selector">Selector</a>
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</div>
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<div>选择器字符串，用于确定匹配到哪个祖先元素时停止匹配。</div>
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</li>
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<li>
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<div><strong>filter</strong></div>
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<div>类型: <a href="/Types/#Selector">Selector</a>
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</div>
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<div>一个字符串，用于匹配元素的选择器表达式字符串。</div>
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</li>
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</ul>
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</li>
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<li class="signature" id="parentsUntil-element-filter">
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<h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.6/">1.6</a></span>.parentsUntil( [element ] [, filter ] )</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>DOM节点或jQuery对象，用于确定到哪个前辈元素时停止匹配。</div>
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</li>
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<li>
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<div><strong>filter</strong></div>
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<div>类型: <a href="/Types/#Selector">Selector</a>
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</div>
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<div>一个字符串，用于匹配元素的选择器表达式字符串。</div>
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</li>
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</ul>
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</li>
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</ul>
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<div class="longdesc" id="entry-longdesc">
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<p>如果提供一个jQuery对象代表DOM元素集合， <code>.parentsUntil()</code> 方法会找遍所有这些元素的前辈元素，直到遇到了跟参数匹配的元素才会停止。返回的jQuery对象中包含了所有找到的前辈元素，除了与 <code>.parentsUntil()</code> 选择器匹配的那个元素。</p>
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<p>如果提供的选择器没有匹配到任何元素，或者没有提供选择器，那么所有的祖先元素都会被选中。其效果与没有提供参数的<code>.parents()</code>方法是一样的</p>
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<p><strong>从 jQuery 1.6 开始</strong>, 一个DOM节点或jQuery对象，而不是一个选择器，也可以作为<strong>.parentsUntil()</strong> 第一参数.</p>
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<p>该方法选择性地接受一个选择器表达式作为它的第二个参数。
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如果此参数提供，元素将通过测试它们是否匹配而被过滤的。</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">Find the ancestors of <li class="item-a"> up to <ul class="level-1"> and give them a red background color. Also, find ancestors of <li class="item-2"> that have a class of "yes" up to <ul class="level-1"> and give them a green border.</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">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> </code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">ul</span> <span class="attribute">class</span>=<span class="value">"level-1 yes"</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span> <span class="attribute">class</span>=<span class="value">"item-i"</span>></span>I<span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span> <span class="attribute">class</span>=<span class="value">"item-ii"</span>></span>II</code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">ul</span> <span class="attribute">class</span>=<span class="value">"level-2 yes"</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span> <span class="attribute">class</span>=<span class="value">"item-a"</span>></span>A<span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span> <span class="attribute">class</span>=<span class="value">"item-b"</span>></span>B</code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">ul</span> <span class="attribute">class</span>=<span class="value">"level-3"</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span> <span class="attribute">class</span>=<span class="value">"item-1"</span>></span>1<span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span> <span class="attribute">class</span>=<span class="value">"item-2"</span>></span>2<span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span> <span class="attribute">class</span>=<span class="value">"item-3"</span>></span>3<span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"></<span class="title">ul</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span> <span class="attribute">class</span>=<span class="value">"item-c"</span>></span>C<span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"></<span class="title">ul</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span> <span class="attribute">class</span>=<span class="value">"item-iii"</span>></span>III<span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">ul</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>$(<span class="string">"li.item-a"</span>).parentsUntil(<span class="string">".level-1"</span>)</code></div></div><div class="container"><div class="line"><code> .css(<span class="string">"background-color"</span>, <span class="string">"red"</span>);</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>$(<span class="string">"li.item-2"</span>).parentsUntil( $(<span class="string">"ul.level-1"</span>), <span class="string">".yes"</span> )</code></div></div><div class="container"><div class="line"><code> .css(<span class="string">"border"</span>, <span class="string">"3px solid green"</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">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" data-height="220px"></div>
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</div></section>
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</div></article> </div>
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</article> |