Javascript 添加子对象的公共属性，并使用父键（Node.js）将其追加

我想添加公共属性，即同一个键的total_quantity_Seld，并将其与父索引一起附加为total

这是我的产品阵列，我有

{ '900001':
   [ anonymous {
       id: '900001',
       name: 'Pack1',
       product: 2017-11-02T13:49:25.596Z,
       total_quantity_sold: '1' },
     anonymous {
       id: '900001',
       name: 'Pack1',
       product: 2018-02-11T13:49:25.596Z,
       total_quantity_sold: '4' },
     anonymous {
       id: '900001',
       name: 'Pack1',
       product: 2017-12-02T13:49:25.596Z,
       total_quantity_sold: '1' } ],
  '900002':
   [ anonymous {
       id: '900002',
       name: 'Pack2',
       product: 2018-01-02T13:49:25.596Z,
       total_quantity_sold: '1' },
     anonymous {
       id: '900002',
       name: 'Pack2',
       product: 2017-11-02T13:49:25.596Z,
       total_quantity_sold: '1' },
     anonymous {
       id: '900002',
       name: 'Pack2',
       product: 2018-02-11T13:49:25.596Z,
       total_quantity_sold: '4' } ],}

我想对所有数量求和，并将其与父键一起追加，以便最终数组如下所示。实际上，我希望填充图形时需要总计数以及每个日期的计数

 { '900001':
       'total' : 6
       [ {
           name: 'Pack1',
           product: 2017-11-02T13:49:25.596Z,
           total_quantity_sold: '1' },
          {
           name: 'Pack1',
           product: 2018-02-11T13:49:25.596Z,
           total_quantity_sold: '4' },
         {

           name: 'Pack1',
           product: 2017-12-02T13:49:25.596Z,
           total_quantity_sold: '1' } ],
      '900002':
       'total' : 7
       [ {

           name: 'Pack2',
           product: 2018-01-02T13:49:25.596Z,
           total_quantity_sold: '2' },
          {

           name: 'Pack2',
           product: 2017-11-02T13:49:25.596Z,
           total_quantity_sold: '1' },
        {

           name: 'Pack2',
           product: 2018-02-11T13:49:25.596Z,
           total_quantity_sold: '4' } ],}

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谢谢你

没问题！您可以通过传递哈希表中的每个条目来完成，并将其替换为希望就位的目标对象。我们还可以使用一个简单的减速机来计算销售数量的总和

ES7路

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工作很有魅力！非常感谢！

Object.entries(obj).forEach(a => {
  const [key, children] = a
  const total = children.reduce((p,c) => p+c.total_quantity_sold, 0)
  obj[key] = {total, children}
})