类的最后一个要素 [英] Last element of Class

问题描述

如何检查具有某个类的元素是否是该类的最后一个?

How can I check if a element with a certain class is the last of that class?

<div class="foo"></div>
<div class="foo"></div>
<div class="foo"></div>
<div class="foo"></div>
<div class="foo"></div>
<div class="foo"></div>
<div class="foo"></div>
<div class="foo"></div> // I want to check if this is the last element of this class
<div class="bar"></div>
<div class="bar"></div>
<div class="bar"></div>
<div class="bar"></div>
<div class="bar"></div>

推荐答案

由于我不确定您如何识别此变量，因此可以说$foo是该特定元素的jQuery对象.

As I'm not sure how you are identifying this variable, lets say $foo is a jQuery object for that particular element.

您可以这样做:

if (!$foo.next(".foo").length){
   //its the last foo
}

实时演示: http://jsfiddle.net/2W6eT/

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