我无法替换 mongoose 返回的数组的值

Question

我有一个 notifications.find 查询 (mongoose) returns 多张

Notification.find({id: id}, function(err, notifications){}

我需要像那样转换返回的时间戳值

[                                                                                             
  {
    _id: new ObjectId("12934193c51a231b0165425a"),
    userid: '62921df1c14a2eea0efa9399',
    timestamp: 1653817696599,
  },
  {
    _id: new ObjectId("11934193c51a231b0165425a"),
    userid: '62921df1c14a2eea0efa9399',
    timestamp: 1653817696600,
  }
]

我试过了

notifications.forEach((element, index) => {

notifications[index].timestamp = new Date(notifications[index].timestamp);

});

和这段代码

new Date(notifications[index].timestamp);

似乎可以通过转换每个值的时间戳来工作，但我无法在数组中替换它

我已经在这个问题上思考了几个小时

Answer 1

而不是 forEach 使用 map

const newNotifications = notifications.map((element, index) => {
  return {
    ...element,
    timestamp: new Date(element.timestamp),
   }
});

我无法替换 mongoose 返回的数组的值

I can't replace the value of an array returned by mongoose

javascript

arrays

mongoose

mongodb

node.js