javascript - 转换数据

Question

我有以下数据结构:

const data = [
  {
    name: 'ABC',
    salesData: [
      {
        timestamp: '2017-09-01',
        value: 10
      },
      {
        timestamp: '2017-09-02',
        value: 2
      }
    ]
  },
  {
    name: 'DEF',
    salesData: [
      {
        timestamp: '2017-09-01',
        value: 8
      },
      {
        timestamp: '2017-09-02',
        value: 3
      }
    ]
  }
];

我想将其转换为:

[
  {
    name: 'ABC',
    '2017-09-01': 10,
    '2017-09-02': 2
  },
  {
    name: 'CDE',
    '2017-09-01': 8,
    '2017-09-02': 3
  }
]

我正在尝试使用 Underscore 的 Chain 和 Map，但我感到很困惑。到目前为止，我有以下内容，不确定如何编写 convertedSalesData 来根据需要进行转换:

_.map(data, function(item) {
    let name = item.name;
    let salesData = item.salesData;
    let convertedSalesData = ?
})

Answer 1

使用 ES6，您可以使用扩展语法 ... 来获得此结果。

const data = [{"name":"ABC","salesData":[{"timestamp":"2017-09-01","value":10},{"timestamp":"2017-09-02","value":2}]},{"name":"DEF","salesData":[{"timestamp":"2017-09-01","value":8},{"timestamp":"2017-09-02","value":3}]}]


var result = data.map(function({name, salesData}) {
  return {name, ...Object.assign({}, ...salesData.map(({timestamp, value}) => ({[timestamp]: value})))}
})
console.log(result)