bind 实例 

<!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>Document</title>
    <style>

    </style>
</head>

<body>
    <div class="container">
        <button>点击</button>
        <button>点击1</button>
        <button>点击2</button>
    </div>
    <script>
        var btns = document.querySelectorAll('button')
        for (var i = 0; i < btns.length; i++) {
            btns[i].onclick = function() {
                this.disabled = true
                setTimeout(function() {
                    this.disabled = false
                }.bind(this), 2000)
            }
        }
    </script>
</body>

</html>

 

posted @ 2020-05-11 14:03  howhy  阅读(137)  评论(0)    收藏  举报