JavaScript Essentials: From Variables to Functions

Introduction

JavaScript is the magic behind interactive web pages. In this article, we’ll break down the basics—from variables and data types to functions and control flow.

Variables and Data Types

Learn about declaring variables with let, const, and var:

// Declaring variables
let name = "Hamdan";
const PI = 3.1416;
var age = 18;
        

Functions and Control Flow

Functions help you organize your code. Here’s a simple function:

function greet(user) {
  return `Hello, ${user}!`;
}
console.log(greet("Hamdan"));
        

Interactive JavaScript

Experiment with JavaScript right in your browser. Try modifying variables or adding new functions to see how your page reacts!

Conclusion

Understanding JavaScript fundamentals is your gateway to dynamic, interactive web development. Keep practicing, and soon you’ll be writing code like a pro!