javascript - 分配对象索引以在对象内部可用

Question

我有一个对象:

    var contacts = 
{
  'KxN5RVjE1zoGqrzYKOV' :
  {email: "dfdfdf@dfdfd.com", firstName: "Lora", lastName: "Did"},

  '-KxN7AkNyiVjMYReZzbQ':
  {email: "teste@test.com", firstName: "Tom", lastName: "Smith"},

  '-KxN743hpoTVWIqR75XD':
  {email: "user@test.com", firstName: "Polina", lastName: "Polina"}

};

我需要让它成为一个值，所以它看起来像这样:

var contacts = 
{
  'KxN5RVjE1zoGqrzYKOV' :
  {email: "dfdfdf@dfdfd.com", firstName: "Lora", lastName: "Did", id:'KxN5RVjE1zoGqrzYKOV'},

  '-KxN7AkNyiVjMYReZzbQ':
  {email: "user@test.com", firstName: "Tom", lastName: "Smith", id: '-KxN7AkNyiVjMYReZzbQ'},

  '-KxN743hpoTVWIqR75XD':
  {email: "user@test.com", firstName: "Polina", lastName: "Polina", id:'-KxN743hpoTVWIqR75XD'}

};

这是我目前的代码，没有添加任何东西，只是控制同一个旧对象:

var results = Object.keys(contacts).map((key, id) => {
  var contact = contacts[key];
  Object.assign({}, contact, {id: key});
  console.log(contact);
});

有什么想法我想念的是什么，我还能尝试什么吗？

Answer 1

如果你不介意修改原始对象，你可以使用 forEach 循环遍历键并将 id 添加到每个元素:

var contacts = 
{
  'KxN5RVjE1zoGqrzYKOV' :
  {email: "dfdfdf@dfdfd.com", firstName: "Lora", lastName: "Did"},

  '-KxN7AkNyiVjMYReZzbQ':
  {email: "teste@test.com", firstName: "Tom", lastName: "Smith"},

  '-KxN743hpoTVWIqR75XD':
  {email: "user@test.com", firstName: "Polina", lastName: "Polina"}

};

Object.keys(contacts).forEach(key => {
  contacts[key]['id'] = key;
});

console.log(contacts);