javascript - 从包含对象的嵌套数组的数组创建新对象

Question

我有以下带有嵌套数组的数组:

const options = [
  [
    {
      label: "Blue",
      option_id: "1"
    },
    {

      label: "Small",
      option_id: "2"
    }
  ],
  [
    {
      label: "Red",
      option_id: "1"
    },
    {
      label: "Large",
      option_id: "2"
    }
  ]
];

我想从每一对中创建一个对象数组，例如:

[
 {
   label: ”Blue Small“,
   option_id: [1,2]
 },
...
]

编辑:感谢大家的精彩回答

Answer 1

在 options 数组上使用 .map，并将每个子数组reduce 为一个对象:

const options = [
  [
    {
      label: "Blue",
      option_id: "1"
    },
    {

      label: "Small",
      option_id: "2"
    }
  ],
  [
    {
      label: "Red",
      option_id: "1"
    },
    {
      label: "Large",
      option_id: "2"
    }
  ]
];
const result = options.map(arr =>
  arr.reduce(
    (a, { label, option_id }) => {
      a.label += (a.label ? ' ' : '') + label;
      a.option_id.push(option_id);
      return a;
    },
    { label: '', option_id: [] }
  )
);
console.log(result);