jQuery实现的简单获取索引功能示例

时间:2020-05-16 前端爱我人气:0

本文实例讲述了jQuery实现的简单获取索引功能。分享给大家供大家参考，具体如下：

<!doctype html>
<html lang="en">
 <head>
 <meta charset="UTF-8">
 <meta name="Generator" content="EditPlus®">
 <meta name="Author" content="">
 <meta name="Keywords" content="">
 <meta name="Description" content="">
 <title>www.qb5200.com 获取当前点击的元素在原来集合中的索引</title>
 <style type="text/css">
  li {
    height: 25px;
    line-height: 25px;
    background: rgba(0,0,0,0.5);
    border-bottom: 1px solid red;
  }
  a {
    text-decoration: none;
    font-size: 16px;
  }
 </style>
 </head>
 <body>
 <div>
  <ul>
    <li>
      <a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
        <div class="index">
        0
        </div>
      </a>
    </li>
    <li>
      <a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
        <div class="index">
        1
        </div>
      </a>
    </li>
    <li>
      <a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
        <div class="index">
        2
        </div>
      </a>
    </li>
    <li>
      <a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
        <div class="index">
        3
        </div>
      </a>
    </li>
    <li>
      <a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
        <div class="index">
        4
        </div>
      </a>
    </li>
  </ul>
 </div>
 <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
 <script type="text/javascript">
    $(function(){
      $(".index").on("click",function(){
          var $target = $(this);
          console.log($(".index").index($target));
      });
    });
 </script>
 </body>
</html>

使用在线HTML/CSS/JavaScript代码运行工具 http://tools.softyun.net/code/HtmlJsRun测试运行结果如下：

希望本文所述对大家jquery程序设计有所帮助。

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