Top 75 React Interview Questions You Should Know
Hooks, rendering, performance, state management, and system design angles — everything interviewers ask React developers in 2026.
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React fundamentals
Strong candidates articulate component model, JSX, and one-way data flow clearly.
- Virtual DOM vs reconciliation
- Controlled vs uncontrolled components
- Keys in lists
Hooks deep dive
Expect follow-ups on useEffect dependencies, useMemo trade-offs, and custom hooks.
#React#Frontend#JavaScript
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