Object Methods

👨‍💼 Great! You've created methods that operate on object data.

🦉 The this keyword:

Inside a method, this refers to the object the method belongs to. This lets methods access and use the object's other properties.

const counter = {
	count: 0,
	increment() {
		this.count += 1
		return this.count
	},
	decrement() {
		this.count -= 1
		return this.count
	},
}

Arrow functions handle this differently! They don't have their own this, so avoid using arrow functions for object methods that need to access this.

// ❌ Don't do this
const obj = {
	name: 'Alice',
	greet: () => 'Hi, ' + this.name, // `this` won't work as expected!
}

// ✅ Do this
const obj = {
	name: 'Alice',
	greet() {
		return 'Hi, ' + this.name
	},
}

06. Objects/02. Object Methods (🏁 solution)

Object Methods