JavaScript Functions

Functions are reusable blocks of code.

Function Declaration:

function greet(name) {
  return "Hello, " + name + "!";
}

let message = greet("Alice");
console.log(message); // "Hello, Alice!"

Arrow Functions (Modern):

const add = (a, b) => a + b;
console.log(add(5, 3)); // 8

Return Values:

Functions can return values using the return keyword.

Task: Create a function multiply that takes two numbers and returns their product.