javascript - 在数组中添加对象的键值对

Question

function Person (name, age) {
  this.name = name;
  this.age = age;
}

var family = []

var people = {alice:40, bob:42, michelle:8, timmy:6};


for (var key in people) {
  family.push({key:people[key]})
}

console.log(family);

这并没有给我 key 。它为每个键提供“键”。在数组中添加 {key:value} 对象对的正确方法是什么？

更新基于下面的 K3N 解决方案，我认为如果我们每次都从构造函数中声明，效果最好:

keys = Object.keys(people);
for (var i = 0; i < keys.length; i++) {
  family.push(new Person(keys[i], people[keys[i]]));
}

Answer 1

由于您的人员数组包含人名作为键，值作为年龄(要小心，就好像您在时空中出现两个同名的人发生核 react 一样......!)。

你可以这样做:

function Person (name, age) {
  this.name = name;
  this.age = age;
}

var family = []

var people = {alice:40, bob:42, michelle:8, timmy:6};

var keys = Object.keys(people);               // list all (ownProperty) keys in object
for(var i = 0, key; key = keys[i]; i++) {     // loop through
  family.push(new Person(key, people[key]));  // push it
}

document.write(JSON.stringify(family));       // demo output