javascript - 如何将 'map' 与数组中的数组一起使用 (Json)

Question

我有 JSON 数据:

users = [{
  "name": "alex", 
   "id":123, 
   "surname":"xx", 
    tarriff: {
      "id":1,
      "name":"free"
    }
},
 {
  "name": "tom", 
   "id":124, 
   "surname":"henry", 
    tarriff: {
      "id":1,
      "name":"free"
    }
}

]

我需要过滤数据(删除 "surname":"xx", "surname":"henry"和 smt else )。

如果我使用 tarriff.name 会出现语法错误

$scope.userfilter = users.map(({name,id, tarriff.name}) => ({name, id, tariff_name}));

帮我写出正确的解决方案。

Answer 1

你可以拿一个destructuring assignment并使用 short hand properties 构建一个新对象.

var users = [{ name: "alex", id: 123, surname: "xx", tarriff: { id: 1, name: "free" } }, { name: "tom", id: 124, surname: "henry", tarriff: { id: 1, name: "free" } }],
    result = users.map(({ name, id, tarriff }) => ({ name, id, tarriff_name: tarriff.name }));
    
console.log(result);

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