javascript - 将对象数组插入数组的最佳方法是什么

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这是要推送到数组的对象数组

  [{"a":11,"b":21},{"a":31,"b":41},{"a":10,"b":20}]

如何从上面实现下面的这个数组

"array": [
    [
      [
        11,
        21
      ],
      [
        31,
        41
      ],
      
      [
        10,
        20
      ]
    ]
  ]

Answer 1

使用 Array.prototype.map()

The map() method creates a new array populated with the results of calling a provided function on every element in the calling array.

var array1 = [{"a":11,"b":21},{"a":31,"b":41},{"a":10,"b":20}];

var array2 = [array1.map(item=>[item.a, item.b])];

console.log(array2);