| Tutorials | JavaScript |

How to Use Functions in JavaScript

Functions in JavaScript are blocks of code that you can reuse in your program.
They help you organize your code better and avoid repeating instructions.

Declaring a Function

function greet() {
  console.log("Hello, welcome to JavaScript!");
}

Calling the function:

greet(); // Displays the message in the console

Functions with Parameters

function add(a, b) {
  return a + b;
}

console.log(add(5, 3)); // 8

Arrow Functions

Another way to declare functions is with arrow functions:

const multiply = (x, y) => x * y;
console.log(multiply(4, 2)); // 8

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Functions help you write cleaner and more reusable code.

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