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watak

返回值:jQuery

parentsUntil([expr|element][,filter])

概述

查找当前元素的所有的父辈元素,直到遇到匹配的那个元素为止。

如果提供的jQuery代表了一组DOM元素,.parentsUntil()方法也能让我们找遍所有元素的祖先元素,直到遇到了一个跟提供的参数匹配的元素的时候才会停下来。这个返回的jQuery对象里包含了下面所有找到的父辈元素,但不包括那个选择器匹配到的元素。

参数

[expr][,filter] String,StringV1.4

expr: 用于筛选祖先元素的表达式

filter: 一个字符串,其中包含一个选择表达式匹配元素。

[element][,filter] DOMElement,StringV1.6

element:用于筛选祖先元素的DOM元素

filter: 一个字符串,其中包含一个选择表达式匹配元素。

示例

描述:

查找item-a的祖先,但不包括level-1

HTML 代码:
<ul class="level-1">
  <li class="item-i">I</li>
  <li class="item-ii">II
    <ul class="level-2">
      <li class="item-a">A</li>
      <li class="item-b">B
        <ul class="level-3">
          <li class="item-1">1</li>
          <li class="item-2">2</li>
          <li class="item-3">3</li>
        </ul>
      </li>
      <li class="item-c">C</li>
    </ul>
  </li>
  <li class="item-iii">III</li>
</ul>
jQuery 代码:
$('li.item-a').parentsUntil('.level-1')
    .css('background-color', 'red');


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