78、随机点名案例

2024-10-04 / 0 评论 / 6 阅读 / 正在检测是否收录...

10/04

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let arr = ['赵云', '黄忠', '关羽', '张飞', '马超', '刘备', '曹操']
        let random = Math.floor(Math.random() * arr.length)
        // console.log(arr[random])
        document.write(arr[random]) 

        //3.splice(起始位置(下标),删除几个元素)
        arr.splice(random, 1)
        console.log(arr)
    </script>
</body>
</html>

JavaScript