JavaScript

Lesson in the Backend Developer Roadmap · Stage 2: Frontend Basics

Last updated 14 September 2026

What is JavaScript?

JavaScript is a versatile, high-level language for web interactivity and dynamic features. Runs client-side in browsers and server-side with Node.js for full-stack development. Supports multiple programming styles with rich ecosystem of frameworks like React, Angular, and Vue.

Study this in the interactive course See the whole Backend roadmap

Free resources to learn JavaScript

RoadmapVisit Dedicated JavaScript Roadmap
ArticleThe Modern JavaScript Tutorial
ArticleBuild 30 Javascript Projects in 30 days
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 9 of 155 in the free Backend roadmap, in stage 2, Frontend Basics. If you are new to Backend, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.