json - Node.js中过滤json数据

Question

我收到以下json格式的数据

 [{
     "Id": 1,
     "sku": "abc",
     "name": "Abbey Black Round Glass and Chrome 3 Tier Stand",
     "qty": 14
   },
   {
     "Id": 3,
     "sku": "abc",
     "name": "Ammy Black Glass and Chrome 5 Tier Corner Stand",
     "qty": 0
   },
   {
     "Id": 4,
     "sku": "abc",
     "name": "Barcelona Adjustable Gas Lift Black Bar Stool (Set of 2)",
     "qty": 0
   }
 ] 

我必须过滤数据，以便它仅显示以下键值对

sku
qty

预期结果是

[{
    "sku": "abc",
    "qty": 14
  },
  {

    "sku": "abc",
    "qty": 0
  },
  {

    "sku": "abc",
    "qty": 23
  }
]

有什么解决方案可以过滤这种格式的数据吗？我可以根据特定值过滤数据，但我想要仅包含两对 (sku,qty) 的 json 数据

Answer 1

您可以将 Array.map() 与数组解构结合使用，以使您的代码简单而简短:

var data = [
  {
      "Id": 1,
      "sku": "abc",
      "name": "Abbey Black Round Glass and Chrome 3 Tier Stand",
      "qty": 14
  },
  {
      "Id": 3,
      "sku": "abc",
      "name": "Ammy Black Glass and Chrome 5 Tier Corner Stand",
      "qty": 0
  },
  {
      "Id": 4,
      "sku": "abc",
      "name": "Barcelona Adjustable Gas Lift Black Bar Stool (Set of 2)",
      "qty": 23
   }
];
var res = data.map(({sku, qty}) => ({sku, qty}));
console.log(res);