React Interview Masterclass: Top 200 Questions (+PDF) (2026) (Udemy.com)

For me, this course is well explained by the instructor and in a simple way. From my POV, to reenforce higher levels of seniority knowledge, I would add subjects to the content related to: – TypeScript Deep Dive – TypeScript Handbook, tsconfig, Zod – Testing – React Testing Library, Jest, MSW, Cypress – Component Architecture – Storybook, Atomic Design, Design Systems – Performance Optimization – DevTools, React Profiler, Memoization patterns – Add to State Management module – Modern tools like Zustand or React Query – Next.js – Full Next.js app with SSR + API routes – Deployment – CI/CD on GitHub, deploy to Vercel or Netlify – Soft Skills – Read “The Pragmatic Programmer”, blog/write

I really liked the teacher, good explanations and good vibes. The course is straight to the point, and it helps me to connect all that I learned in previous course. Thanks for this.

Very good course for interview preparation whether you are less or more experienced even for freshers also. Why I have given 4 stars as Redux part is little bit confusing and hard to implement in this course. Please make revise Redux course

This course is an excellent resource for preparing for React interviews, offering clear explanations and practical examples. The PDF summary is particularly helpful for quick revisions and solidifying key concepts.

He is a very good teacher, and he explains everything clearly with examples that even freshers can easily understand. Thanks for doing this!

Awesome course.. All concepts explained well. I have prepared for interview by watching this. Now I have received offer from MNC like Accenture, Cognizant..Thanks for explaining concepts in understandable way.

i saw in interview questions like optimization, CQRS at client side, security of application of react is also asked so if possible please add those things

Mr. Happy has done an excellent job explaining minute details of features, concepts with practical examples. Extremely helpful to the beginners and as well to the experienced professionals.

This is one of the best courses that I have seen it covers all the topics from level 0 to advanced, Thnx sir also i am waiting for the node js interview questions.

Amazing course and instructor. Covers everything. Lectures are really short and concise. I bought several courses from Happy and everyone was outstanding. Highly recommend this course and instructor!!!