Top 30 React JS Interview Questions and Answers

In this video, we cover the most frequently asked React JS interview questions along with detailed answers to help you crack your next frontend developer job!

Whether you're a beginner or have 2–5 years of experience, these React interview questions are perfect for brushing up on concepts, learning best practices, and boosting your confidence.

📌 Topics Covered:

00:00 - 🔥 Introduction to Top React JS Interview Questions
00:05 - What is React.js?
00:20 - Virtual DOM vs DOM vs Shallow DOM
00:50 - Controlled vs Uncontrolled Components
01:08 - React Hooks: useState, useEffect, useRef, etc.
01:26 - JSX, Babel, and Webpack Explained
01:51 - Redux Basics: Store, Action, Reducer
02:16 - Middleware, Redux Thunk, Redux Saga
02:22 - Class vs Functional Components
02:33 - Lifecycle Methods in React
03:49 - useEffect, useMemo, useCallback
04:27 - React Portal & Reconciliation
04:15 - Server-Side Rendering (SSR)
04:35 - StrictMode, Fragment, React Router
04:55 - node_modules & HOC
05:15 - PureComponent vs Component
05:35 - State vs Props
05:55 - React App Optimization Tips
06:34 - Prop Drilling & Context API
06:45 - Contect API
07:01 - 🎉 Thanks for Watching!

📎 Useful Links:
👉 React Interview Questions : https://youtu.be/xSGIUoR_Yp4?si=f4Ymn9wd7rNQk9ud
👉 JQuery interview Questions : https://youtu.be/11QOAsYF9oc?si=FW7ISXRZ-ggzNgJX
👉 HTML interview Questions : https://youtu.be/Y3fq9cHyDV4?si=JJEThxyVTWrAou9-
👉 CSS Interview Questions : https://youtu.be/hsZdK43cIuA?si=iEWoepHpDhXYXmOd
🧑🏻‍💻 Website: https://allconverthub.com/
🔔 Subscribe here: ⁨@WebJainul⁩
📧 Contact: mdzainulkhan@gmail.com
Best Budget Laptop: https://amzn.to/4lGgE4Z

💼 Ideal for:
Frontend Developers, React JS Developers, Web Developers, UI Developers, and Software Engineers.

🧠 Don’t forget to LIKE, SHARE, and SUBSCRIBE for more valuable content on React, JavaScript, and web development.

👉 Comment below if you'd like a PDF version of these questions or more mock interviews!

#ReactJS #ReactInterviewQuestions #FrontendInterview #WebDevelopment #ReactHooks #JavaScriptInterview #WebJainul

Видео Top 30 React JS Interview Questions and Answers канала India Result Live