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返回值:BooleanjQuery.contains(container,contained)

概述

一个DOM节点是否包含另一个DOM节点。

参数

container,containedObject,ObjectV1.4

container:DOM元素作为容器,可以包含其他元素

contained:DOM节点,可能被其他元素所包含

示例

描述:

检测一个元素是否包含另一个元素

jQuery 代码:
jQuery.contains(document.documentElement, document.body); // true
jQuery.contains(document.body, document.documentElement); // false
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