JavaScript Tutorial

Learn JavaScript
From Scratch

JavaScript is the programming language of the web. Master the language that powers interactive websites, Node.js backends, and modern frameworks like React, Angular, and Vue.

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About JavaScript

JavaScript was created by Brendan Eich in 1995 and has become the most widely used programming language in the world. It is a lightweight, interpreted, multi-paradigm language that supports object-oriented, functional, and event-driven programming. JavaScript runs in every browser and, with Node.js, on the server side too. ES6+ brought modern features like arrow functions, promises, async/await, and modules.

Prerequisites

Basic knowledge of HTML and CSS is helpful. No prior programming experience required.

Audience

Web developers, front-end engineers, and anyone who wants to add interactivity to web pages.

What You'll Learn

Variables, functions, OOP, closures, async programming, DOM manipulation, and ES6+ features.

Tools Needed

Any modern browser with DevTools, VS Code, and Node.js for server-side JavaScript.

Tutorial Topics

Introduction 01 Comments & Variables 02 Data Types & Keywords 03 Operators 04 This & New Keyword 05 Closures 06 Conditional Statements 07 Looping Statements 08 Events 09 DOM Manipulation 10 Arrays 11 Classes & Objects 12 Functions 13 Hoisting 14 Strict Mode 15 IIFE 16 Prototypes 17 Error Handling 18 Validations 19 Animations 20 Cookies 21 ES6 22 ES7+ 23 Promises 24 Async / Await 25

Why Learn JavaScript?

Language of the Web - The only programming language that runs natively in every browser.
Full Stack - Use JavaScript on both front-end and back-end with Node.js.
Huge Ecosystem - npm has millions of packages; React, Vue, Angular are all JavaScript.
Most Popular - Consistently ranked #1 in developer surveys for over a decade.
Versatile - Build web apps, mobile apps, desktop apps, APIs, and more.
Modern ES6+ - Arrow functions, async/await, modules, and destructuring make JS elegant.