JavaScript

Lesson in the CSS Roadmap · Stage 1: Introduction

Last updated 14 September 2026

What is JavaScript?

JavaScript is a programming language primarily used to create interactive and dynamic content on websites. It allows developers to add features like animations, form validation, and real-time updates without needing to reload the page. It works alongside HTML and CSS to define the behavior of web pages.

Study this in the interactive course See the whole CSS roadmap

Free resources to learn JavaScript

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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 4 of 104 in the free CSS roadmap, in stage 1, Introduction. If you are new to CSS, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.