具有键值对的Javascript对象，如何将每个对分离为单独的对象? [英] Javascript object with key value pairs, how to separate each pair as individual object?

问题描述

我有一个带有键值对的javascript对象，我想将每一对作为单独的对象分开并将其推到数组中，我该怎么做?

I have a javascript object with key value pairs i want to separate each pair as individual object and push it to a array how do i do that?

 var obj = new Object();
 obj = {
      v1 : 'k1',
      v2 : 'k2',
      v3 : 'k3'
    }

    a =[];

Object.entries(obj).forEach(
  ([key, value]) => {
    a.push({key : value});
  });
console.log(a);

这是我的预期输出:

[{v1 : 'k1'}, {v2 : 'k2'}, {v3 : 'k3'}]

推荐答案

您几乎了解了它.要通过变量创建动态属性(称为计算出的属性名称)，则需要在key周围添加[].否则，它只会创建一个仅带有键"作为key的对象:

You have almost got it. To create a dynamic property from a variable (it's called Computed property names), you need to add [] around key. Otherwise, it just creates an object with just "key" as the key:

const obj = {
  v1: 'k1',
  v2: 'k2',
  v3: 'k3'
},
a = [];

Object.entries(obj).forEach(
  ([key, value]) => {
    a.push({[key] : value});
  });
console.log(a);

，或者，使用map更简单:

const obj = {v1:'k1',v2:'k2',v3:'k3'}
,a = Object.entries(obj).map(([key, value]) => ({[key] : value}));

console.log(a);

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