Essential JavaScript

Updating Properties

We have seen how we can access properties with dot notation or bracket notation:

We can use the same syntax to perform other operations on object properties.

Updating Properties

We can use dot notation or bracket notation to update properties:

const person = {
  name: 'John Doe',
  age: 22,
};

person.age++;
console.log(person.age);

person.name += ' Sr.';
console.log(person['name']);

Adding Properties

We can even add new properties:

const person = {
  name: 'Jane Doe',
  age: 22,
};
person.job = 'Game Developer';
console.log(person);

Learning Goals

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