javascript - 使用 lodash 将 javascript 数组转换为对象

Question

我想知道用对象转换我的 javascript 数组的最佳方法是什么。我尝试过用 lodash 制作一条精美的链条，但我不明白。

由于后端的工作方式，我需要以这种方式格式化数据。

// from:
var something = [
  {
    name: 'foo',
    stuff: [
      {
        id: 1
      },
      {
        id: 2
      },
      {
        id: 3
      }
    ]
  },
  {
    name: 'bar',
    stuff: []
  },
  {
    name: 'baz',
    stuff: [
      {
        id: 7
      },
      {
        id: 8
      }
    ]
  }
];

// to:
var transformed = [
  {
    name: 'foo',
    included: {
      included: [1, 2, 3]
    }
  },
  {
    name: 'bar',
    included: {
      included: []
    }
  },
  {
    name: 'baz',
    included: {
      included: [7, 8]
    }
  }
];

Answer 1

您可以使用两个 map 非常简洁地完成此操作调用(内置数组或 lodash 的映射)，一个嵌套的函数来处理每个对象中的“included”数组:

const transformed = something.map(it => {
  return {
    name: it.name,
    included: {
      included: it.stuff.map(thing => thing.id)
    }
  };
});