JS数组乱序之 Fisher–Yates方式

最新推荐文章于 2025-05-28 19:34:53 发布

shuffle_boy

最新推荐文章于 2025-05-28 19:34:53 发布

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本文链接：https://blog.youkuaiyun.com/shuffle_boy/article/details/118994247

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<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport"
    content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>

<body>
  <script>
    let arr = [1, 2, 3, 4, 5, 6, 7]
    
    function shuffle(arr) {
      for (let i = arr.length; i; i--) {
        let j = Math.floor(Math.random() * i);
        [arr[i - i], arr[j]] = [arr[j], arr[i - 1]]
      }
      return arr
    }
    console.log(shuffle(arr))
  </script>
</body>

</html>