target与currentTarget的区别

我的理解在下面的代码中显示，currentTarget比target来的更具体些，点那个就是哪个

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>target与currentTarget区别</title>
    <style>
        #box{
            width: 500px;
            height: 200px;
            background-color: blue;
        }
    </style>
</head>
<body>
    <div onclick="getClick(event)" id="box">
        <h1 onclick="getClick(event)" id="boxh">我是h1标签</h1>
    </div>
    <script>
         var box = document.querySelector('#box');
         var boxh = document.querySelector('#boxh');
         function getClick(event){
             a = event.currentTarget;
             b = event.target;
             alert("currentTarget 指向： " + a.id + "， target指向：" + b.id)
         }
    </script>
</body>
</html>

　　

posted @ 2017-12-03 18:33  a权  阅读(164)  评论(0)  编辑  收藏  举报
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