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Beginner’s Guide to JavaScript

Published on August 15, 2025

JavaScript is the programming language that brings your website to life. While HTML provides the structure and CSS handles the styling, JavaScript makes your pages interactive.

Why Learn JavaScript?

With JavaScript, you can create image sliders, validate forms, make dynamic menus, and even build full web applications.

Basic JavaScript Syntax

JavaScript uses statements and functions to perform tasks:

console.log("Hello, world!");

Example

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

This code shows a popup greeting the user by name.

Ways to Add JavaScript

  • Inline JavaScript: Inside an HTML element's onclick attribute.
  • Internal JavaScript: Inside a <script> tag in the HTML.
  • External JavaScript: In a separate .js file linked to the HTML.

Next Steps

After mastering the basics, you can move on to DOM manipulation, APIs, and frameworks like React or Vue to build modern web apps.