Modify an Object Nested Within an Object

Summary

Object properties can be nested to an arbitrary depth, and their values can be any type of data supported by JavaScript.

Final Code

let userActivity = {
  id: 23894201352,
  date: 'January 1, 2017',
  data: {
    totalUsers: 51,
    online: 42
  }
};

// Only change code below this line
userActivity.data.online = 45;
// Only change code above this line

console.log(userActivity);