Other Companies (Name Not Shared) React.js Interview Questions for Not specified
Shared question set for Not specified of experience, Frontend interview (React, Next.js). Topics and wording follow the supplied notes; these are questions, not official company guidance.
- What is garbage collection in JavaScript?
- What are generator functions?
- What is the difference between shallow copy and deep copy?
- How would you flatten a nested array?
- How would you group items based on a property?
- What are the drawbacks of useEffect dependencies?
- How do you handle authentication, user profile and application data using Redux?
- How would you efficiently render 3 lakh records in a React application?
- What is the difference between SSR, CSR and SSG?
- What is the difference between the Next.js Pages Router and App Router?
- How do you handle authentication and user data in a Next.js application?
- How would you encrypt API payload data in a React application?
- What approach would you use to protect sensitive data while communicating with an API?
- If an API returns 3 lakh records, how would you display them efficiently to the user? (Pagination, virtualization/windowing, server-side filtering and sorting, lazy loading, incremental fetching, avoiding unnecessary re-renders)