update nested value in object of objects with keys in javascript

I have a nested object:

myObject {
  "fshkj78gds": {
    "name": "Joe",
    "created_at": {
      "nanoseconds": 745000000,
      "seconds": 1645468219,
    },
    "updated_at": {
      "nanoseconds": 0,
      "seconds": 1645471800,
    },
  },
  "gsdg987": {
    "name": "Mike",
    "created_at": {
      "nanoseconds": 745000000,
      "seconds": 1645468219,
    },
    "updated_at": {
      "nanoseconds": 0,
      "seconds": 1645471800,
    },
  },
}

I would like to convert created_at and updated_at in each nested object to only return the seconds instead as a number like so:

myObject {
  "fshkj78gds": {
    "name": "Joe",
    "created_at": 1645468219,
    "updated_at": 1645471800,
  },
  "gsdg987": {
    "name": "Joe",
    "created_at": 1645468219,
    "updated_at": 1645471800,
  },
}

I am thinking I will need a mix of map and Object.assign as well as spread operator?

So far I got to:

Object.assign({}, myObject, Object.values(myObject).map((nestedObject) =>
  Object.assign({}, nestedObject, {...nestedObject, created_at: nestedObject.created_at.seconds})
))

But this generates an array of objects and doesn’t keep the original structure. What’s the proper way to do this?

>Solution :

Use forEach() to iterate over the values and then just reassign the properties.

Object.values(myObject).forEach(item => {
    item.created_at = item.created_at.seconds;
    item.updated_at = item.updated_at.seconds;
});