Functions Basics

Functions group reusable steps. They take parameters and can return a value.

• function name() {} is a declaration (hoisted).
• const fn = function() {} is an expression.
• Always return explicitly when you need a value.

function add(a, b) {
  return a + b;
}
console.log(add(2, 3));

After you read this chapter, use Write (when available) and Quiz on this page to lock it in.