javascript - 将数组复制到另一个对象属性javascript

Question

我有两个对象:

Group 具有 users 属性，包含 ObjectId 数组:

["59f5c8b62f73d036bc4f5673","59f5c7d42f73d036bc4f566b",
"59f5c81a2f73d036bc4f566d","59f5c8482f73d036bc4f566f"]

另一个对象有一个属性，需要用精确的 objectId 数组填充，所以当我在后面创建它时，它现在看起来像这样:

var object = new Object({
      title: req.body.title
      group: req.params.id,
      objectArray: { user: group.users, value: 1 }
    });

我期望得到的人口如下:

object: {
    title: some-title,
    group: someRefId,
    objectArray: [ 
       {user: ObjectId1, value: 1},
       {user: ObjectId2, value: 1},
       {user: ObjectId3, value: 1},
       {user: ObjectId4, value: 1}
    ]
}

我需要以某种方式迭代该数组，然后声明 {user: user of group.users, value:1} 或其他内容。我不明白如何在声明新对象时迭代该数组...

Answer 1

var req = {
  body: {
    title: 'some-title'
  },
  params: {
    id: 'someRefId'
  }
};

var group = {
  users: [
    "59f5c8b62f73d036bc4f5673",
    "59f5c7d42f73d036bc4f566b",
    "59f5c81a2f73d036bc4f566d",
    "59f5c8482f73d036bc4f566f"
  ]
};

var object = {
  title: req.body.title,
  group: req.params.id,
  objectArray: group.users.map(function(user) {
    return {
      user: user,
      value: 1
    };
  })
};

console.log(object);