React

Lesson in the Frontend Developer Roadmap · Stage 9: Learn a Framework

Last updated 14 September 2026

What is React?

React is a JavaScript tool from Facebook for building UIs, especially for single-page apps. It lets you create reusable UI parts that update when data changes. React uses a virtual DOM for speed and has a one-way data flow. This component style makes code neat and reusable. React also works with tools like Redux for data management and React Native for mobile apps. It's popular because it's clear, fast, and has a big community.

Study this in the interactive course See the whole Frontend roadmap

Free resources to learn React

React: common questions

Can I learn React 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 React 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 React tutorial for beginners?

It is lesson 24 of 120 in the free Frontend roadmap, in stage 9, Learn a Framework. If you are new to Frontend, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.