JavaScript

Lesson in the HTML Roadmap · Stage 2: How the web works

Last updated 14 September 2026

What is JavaScript?

JavaScript is a programming language primarily used to create interactive and dynamic effects within web browsers. It allows developers to implement complex features on web pages, updating content dynamically, controlling multimedia, animating images, and much more, enhancing the user experience beyond static HTML and CSS.

Study this in the interactive course See the whole HTML roadmap

Free resources to learn JavaScript

RoadmapVisit the dedicated JavaScript Roadmap
Open sourceYou Don't Know JS Yet (book series)
ArticleJavaScript MDN Docs
ArticleThe Modern JavaScript Tutorial
ArticleEloquent JavaScript textbook
VideoJavaScript Crash Course for Beginners

JavaScript: common questions

Can I learn JavaScript in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain JavaScript in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this JavaScript tutorial for beginners?

It is lesson 13 of 88 in the free HTML roadmap, in stage 2, How the web works. If you are new to HTML, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.