Answer
Custom hooks extract reusable logic from components, making code cleaner, modular, and easier to maintain.
Quick Answer
Custom hooks extract reusable stateful logic from components into functions. Instead of duplicating useEffect + useState logic across multiple components, you write it once as useWindowSize or useAuthStatus and use it anywhere. They keep components clean and focused on rendering while the logic stays testable and composable.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ