Useful for traversing elements, and then adding something that was matched before the last traversion.
返回值jQuery
示例选取所有div以及内部的p，并加上border类
HTML 代码:
<div><p>First Paragraph</p><p>Second Paragraph</p></div>
jQuery 代码:
$("div").find("p").andSelf().addClass("border");
结果:
<div><p>First Paragraph</p><p>Second Paragraph</p></div>
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end()
回到最近的一个"破坏性"操作之前。即，将匹配的元素列表变为前一次的状态。
如果之前没有破坏性操作，则返回一个空集。所谓的"破坏性"就是指任何改变所匹配的jQuery元素的操作。这包括在 Traversing 中任何返回一个jQuery对象的函数--'add', 'andSelf', 'children', 'filter', 'find', 'map', 'next', 'nextAll', 'not', 'parent', 'parents', 'prev', 'prevAll', 'siblings' and 'slice'--再加上 Manipulation 中的 'clone'。
Revert the most recent 'destructive' operation, changing the set of matched elements to its previous state (right before the destructive operation).
If there was no destructive operation before, an empty set is returned. A 'destructive' operation is any operation that changes the set of matched jQuery elements, which means any Traversing function that returns a jQuery object - including 'add', 'andSelf', 'children', 'filter', 'find', 'map', 'next', 'nextAll', 'not', 'parent', 'parents', 'prev', 'prevAll', 'siblings' and slice - plus the 'clone' function (from Manipulation).
返回值jQuery
示例选取所有的p元素，查找并选取span子元素，然后再回过来选取p元素
HTML 代码:
<p><span>Hello</span>,how are you?</p>
jQuery 代码:
$("p").find("span").end()
结果:
[ <p><span>Hello</span> how are you?</p> ]