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React Interview: Top 200 Questions (Hindi)(with PDF)(2026)

Name: React Interview: Top 200 Questions (Hindi)(with PDF)(2026)
Rating: 4.5 (71 reviews)

React - Basics/ JSX/ Routing/ Lifecycle Methods/ Hooks/ Redux/ Typescript (with PDF/ PPT Revision Book)

Created byHappy Rawat

Last updated 12/2025

Hindi

What you'll learn

React Interview Preparation
200 React Interview Question and Answers
How to Crack React Interviews
React interview guide in PDF format

Course content

25 sections • 230 lectures • 8h 21m total length

Course Structure (PDF books attached in resources)3:32

React-Basics - I - Introduction0:26
Q. What is React? What is the Role of React in software development?3:22
Q. What are the Key Features of React?1:19
Q. What is DOM? What is the difference between HTML and DOM?3:01
Q. What is Virtual DOM? Difference between DOM and Virtual DOM?4:20
Q. What are React Components? What are the main elements of it?1:47
Q. What is SPA(Single Page Application)?1:55
Q. What are the 5 Advantages of React?2:10
Q. What are the Disadvantages of React?1:22
Q. What is the role of JSX in React? (3 points)2:06
Q. What is the difference between Declarative & Imperative syntax?2:05

React-Basics - II - Introduction0:47
Q. What is Arrow Function Expression in JSX?2:26
Q. How to Setup React first project?3:13
Q. What are the Main Files in a React project?3:03
Q. How React App Load and display the components in browser?2:52
Q. What is the difference between React and Angular?4:57
Q. What are other 5 JS frameworks other than React?0:44
Q. Whether React is a Framework or a Library? What is the difference?1:46
Q. How React provides Reusability and Composition?2:07
Q. What are State, Stateless, Stateful and State Management terms?3:42
Q. What are Props n JSX?1:13

React Project - Main Files & Folders - Introduction1:01
Q. What is NPM? What is the role of node_modules folder?1:45
Q. What is the role of public folder in React?1:21
Q. What is the role of src folder in React?0:52
Q. What is the role of index.html page in React?1:26
Q. What is the role of index.js file and ReactDOM in React?2:55
Q. What is the role of App.js file in React?1:53
Q. What is the role of function and return inside App.js?2:24
Q. Can we have a function without a return inside App.js?1:49
Q. What is the role of export default inside App.js?1:11
Q. Does the file name and the component name must be same in React?1:04

JSX - Introduction0:46
Q. What is the role of JSX in React? (3 points)2:06
Q. What are the 5 Advantages of JSX?3:44
Q. What is Babel?1:30
Q. What is the role of Fragment in JSX?2:15
Q. What is Spread Operator in JSX?1:57
Q. What are the types of Conditional Rendering in JSX?3:43
Q. How do you iterate over a list in JSX? What is map() method?3:05
Q. Can a browser read a JSX File?0:25
Q. What is Transpiler? What is the difference between Compiler & Transpiler?1:58
Q. Is it possible to use JSX without React?1:04

Components - Functional/ Class - Introduction0:57
Q. What are React Components? What are the main elements of it?1:47
Q. What are the Types of React components? What are Functional Components?1:42
Q. How do you pass data between functional components in React?0:49
Q. What is Prop Drilling in React?1:39
Q. Why to Avoid Prop Drilling? In how many ways can avoid Prop Drilling?2:57
Q. What are Class Components In React?2:30
Q. How to pass data between class components in React?1:33
Q. What is the role of this keyword in class components?2:00
Q. What are the 5 differences btw Functional components and Class components?2:28

Hooks -useState/ useEffect - Introduction0:35
Q. What are React Hooks? What are the Top React Hooks?2:35
Q. What are State, Stateless, Stateful and State Management terms?3:42
Q. What is the role of useState() hook and how it works?6:17
Q. What is the role of useEffect(). How it works and what is its use?6:20
Q. What is Dependency Array in useEffect() hook?3:53
Q. What is the meaning of the empty array [] in the useEffect()?0:55

Hooks - useContext/ useReducer - Introduction0:41
Q. What is the role of useContext() hook?4:57
Q. What is createContext() method? What are Provider & Consumer properties?1:30
Q. When to use useContext() hook instead of props in real applications?2:35
Q. What are the similarities between useState() and useReducer() hook?3:42
Q. What is useReducer() hook? When to use useState() and when useReducer()?6:40
Q. What are the differences between useState() and useReducer() Hook?0:41
Q. What are dispatch & reducer function in useReducer Hook?2:21
Q. What is the purpose of passing initial state as an object in UseReducer?0:51

Hooks - useCallback/ useMemo/ useRef/ useLayoutEffect - Introduction0:50
Q. What is the role of useCallback() hook in React?4:41
Q. What parameters does the useCallback hook accept & what does it returns?1:32
Q. What is the role of useMemo() Hook?3:00
Q. What is the role of useRef() Hook?3:07
Q. What useLayoutEffect() Hook? Compare it with useEffect() hook.4:45
Q. When to use useLayoutEffect() Hook?3:47

Requirements

Basic JavaScript knowledge is an advantage

Description

One Stop Destination For All React Interview Questions and Answers.

Top 200 React Interview Questions and Answers:

(Video Lectures + Revision PDF Book)

(Topics from which questions are covered)

React-Basics - I
React-Basics - II
React Project - Main Files & Folders
JSX
Components - Functional/ Class
Routing
Hooks -useState/ useEffect
Hooks - useContext/ useReducer
Hooks - useCallback/ useMemo/ useRef/ useLayoutEffect
Hooks - Best Practices/ Short Answer
Components LifeCycle Methods - I
Components LifeCycle Methods - II
Controlled & Uncontrolled Components
Code Splitting
React - Others
Redux - Component/ Action/ Store/ Reducer
Redux - Core Principles/ Pros-Cons/ Local & Redux State
Redux - Short Answer
Redux - Thunk/ Middleware/ Error Handling/ Flux
JavaScript Essentials for React
Typescript

Revision PDF Boos: All notes are present in PDF and PPT format in resources of the course.

Code: For every question, the code is present in its slide notes of PowerPoint.

Interview Preparation Tracker Sheet: All questions listed in this tracker excel. Just have a look just before the interviews.

About Instructor: The instructor has more than 15 years of experience in full-stack development and has given and taken more than 100 interviews in his career. He helps candidates in cracking the interviews.

All the best for your interview preparation.

Remember, NEVER EVER GIVE UP before selection while giving job interviews.

Who this course is for:

Candidate looking for React jobs in software industry

React Interview: Top 200 Questions (Hindi)(with PDF)(2026)

What you'll learn

Explore related topics

Course content

Introduction1 lecture • 4min

React-Basics - I11 lectures • 24min

React-Basics - II11 lectures • 27min

React Project - Main Files & Folders11 lectures • 18min

JSX11 lectures • 23min

Components - Functional/ Class10 lectures • 18min

Routing7 lectures • 11min

Hooks -useState/ useEffect7 lectures • 24min

Hooks - useContext/ useReducer9 lectures • 24min

Hooks - useCallback/ useMemo/ useRef/ useLayoutEffect7 lectures • 22min

Requirements

Description

Who this course is for: