957 B
957 B
title |
---|
Modify an Object Nested Within an Object |
Modify an Object Nested Within an Object
Method:
- Remember the object you want to change is two levels deep,
dot-notation
is easier to use in this instance. - Simply define the object and then use
dot-notation
to access the second object and finally the final element you wish to modify.
Example:
let myObject = {
level_1: 'outside',
first_level_object: {
level_2: '2 levels deep',
second_level_object: {
level_3: '3 levels deep'
}
}
};
//The following line of code will modify the data found in level_2.
myObject.first_level_object.level_2 = 'level-2 has been reached';
Solution:
let userActivity = {
id: 23894201352,
date: 'January 1, 2017',
data: {
totalUsers: 51,
online: 42
}
};
// change code below this line
userActivity.data.online = 45;
// change code above this line
console.log(userActivity);