使用ES6数组解构实现变量交换-CFANZ编程社区

使用ES6数组解构实现变量交换

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  <title>Document</title>
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<body>
  <script>

    //变量交换
    let a = 1
    let b = 2;

    [ a, b ] = [ b, a ]

    console.log(a, b) // 2, 1

    //冒泡排序
    function bubbleSort(arr) {
      for(let i = 0; i < arr.length; i++) {
        for (let j = 0; j < arr.length - i - 1; j++) {
          if (arr[j] > arr[j + 1]) {
            [ arr[j], arr[j + 1] ] = [ arr[j + 1], arr[j] ]
          }
        }
      }
      return arr
    }

    var arr = [6, 5, 3, 1, 8, 7, 2, 4];
    console.log(bubbleSort(arr));
  </script>
</body>
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