Arrow Functions

👨‍💼 Modern JavaScript has a shorter syntax for writing functions called arrow functions. They're especially useful for short, simple functions.

The syntax:

// Traditional function
function add(a, b) {
	return a + b
}

// Arrow function
const add = (a, b) => {
	return a + b
}

// Even shorter for single expressions
const add = (a, b) => a + b

🐨 Open

index.js

and convert these to arrow functions:

Create double as an arrow function that takes a number and returns it doubled
Create greet as an arrow function that takes a name and returns "Hello, [name]!"
Create isPositive as an arrow function that takes a number and returns true if it's greater than 0
Call each function and log the results

💰 For single-expression functions, you can omit the {} and return:

const square = (n) => n * n

04. Functions/03. Arrow Functions (💪 problem)

Arrow Functions