Your web development foundation starts here

Learn JavaScript.
Build confidence.

From your first console message to functions, DOM events, and async/await. Follow 32 focused lessons with explanations and code examples in English and Tamil.

JavaScript அடிப்படையிலிருந்து படிப்படியாகக் கற்றுக்கொள்ளலாம்.

Beginner friendlyEnglish + தமிழ்Self-pacedFree

hello-world.js

const learner = "developer";

function greet(name) {
  return `Vanakkam, ${name}!`;
}

console.log(greet(learner));

› Vanakkam, developer!

32Topics in each language

6Structured sections

2Languages to learn in

Your paceNo deadlines. Keep exploring.

What you’ll take away

A solid foundation. A practical next step.

Write and run JavaScript programs with confidence.
Use values, conditions, loops, and functions.
Organize data with objects, arrays, Maps, and Sets.
Update the DOM and respond to browser events.
Work with promises, async/await, and Fetch.
Debug problems and handle errors thoughtfully.

The curriculum

One concept at a time.

Follow the lessons in order, or return to a topic whenever you need it. Choose English or தமிழ் beside each lesson.

01Start with the foundations9 lessons · Meet JavaScript, run your first script, and work with values and expressions.⌄

02Build logic. Reuse your code.5 lessons · Make decisions, write functions, understand scope, and organize objects and arrays.⌄

03Work with everyday values6 lessons · Handle strings, numbers, dates, classes, and the this keyword.⌄

04Bring the web to life4 lessons · Update the DOM, respond to events, and use modern syntax and JSON.⌄

05Handle data and mistakes4 lessons · Catch errors, match patterns, and choose between Maps and Sets.⌄

06Go beyond the basics4 lessons · Explore async/await, Fetch, debugging, and browser APIs.⌄

Make the examples your own.

Every lesson includes a complete example, a live editor, and a practice task with an answer. Change a value, predict the result, then run the code. DOM and events lessons use an HTML browser preview.

Editors use the external OneCompiler service. Some original illustrations remain unavailable.

A few things to know.

Do I need programming experience?

No. Start with Introduction and Getting Started, then follow the foundations in order.

What do I need to follow along?

Use a modern browser. Every lesson includes a free editor: console examples run as JavaScript, while DOM and events use an HTML browser preview. Basic HTML is helpful for the browser lessons.

Can I switch between English and Tamil?

Yes. Every topic has both reading links. Original Tamil explanations are retained; some added concept and practice notes are in English and labelled on those pages.

Does this course include a certificate?

This free course includes reading lessons, runnable examples, and practice challenges. Certificates and saved progress tracking are not currently enabled.

Learn JavaScript.Build confidence.

A solid foundation. A practical next step.

One concept at a time.

Make the examples your own.

A few things to know.

Learn JavaScript.
Build confidence.