js获取页面所有checkbox，全选，取消全选 

<!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">
    <meta name="author" content="">
    <title>获取页面所有的checkbox</title>
</head>
 
<body>
    <input type="checkbox" name="box1" id="box1">box1
    <input type="checkbox" name="box2" id="box2">box2
    <input type="checkbox" name="box3" id="box3">box3
    <input type="checkbox" name="box4" id="box4">box4
    <input type="checkbox" name="box5" id="box5">box5
    <input type="checkbox" name="box6" id="box6">box6
    <script>
        var inputs = document.getElementsByTagName("input");
        var boxs = [];
        for (let i = 0; i < inputs.length; i++) {
            if (inputs[i].type == "checkbox") {
                boxs.push(inputs[i])
            }
        }
       console.log(boxs)
    </script>
</body>
 
</html>

 全选，取消全选

 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
    <div>
        新闻<input type="checkbox"/><br/>
        电影<input type="checkbox"/><br/>
        音乐<input type="checkbox"/><br/>
        娱乐<input type="checkbox"/><br/>
        八卦<input type="checkbox"/><br/>
        直播<input type="checkbox"/><br/>
    </div>
    <input type="checkbox" onclick="selectAll(this);" />全选/全取消<br/>
   <script src="http://www.jq22.com/jquery/jquery-2.1.1.js"></script>
    <script type="text/javascript">
        function selectAll(checkbox) {
            $('input[type=checkbox]').prop('checked', $(checkbox).prop('checked'));
        }
    </script>
</body>
</html>

 

posted @ 2019-04-30 13:59  quitpoison  阅读(945)  评论(0)  编辑  收藏  举报