Interview Questions for React JS Developer – TCS Recruitment 2025 – Senior developer roles

1. context api
2. lazy loading
3. routing
4. caching v
5. package-lock vs package v
6. rwd
7. spa
8. production, staging, dev v
9. jest testing api v
10. why testing v
11. default export is compulsory? if not then what happen v
12. redux
13. default export vs named export v
14. axios configuration v
15. ui frameworks
16. es6 features
17. eslint v
18. virtual dom vs actual
19. func vs class component
20. lifecycle to useEffect v
21. exact path in routing. if param given what happen v
22. useRef
23. props drilling
24. how u choose react or angular
25. microservices
26. microfrontends
27. useContext use case
28. how will get data from api