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What are Custom Hooks in React?

Custom Hooks are reusable JavaScript functions that contain React Hook logic. They allow developers to extract common functionality from components and reuse it across multiple parts of an application. A custom hook must start with the word 'use', such as useFetch or useAuth. This improves code organization, maintainability, and reusability.

Related Drills

What is the Virtual DOM and how does React use it to render pages?

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Explain the difference between useEffect hooks and useLayoutEffect hooks.

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What is the Virtual DOM in React?

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JB

Jeevan Bhargav

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This answer is calibrated for technical interviews. Verify benchmarks in local sandboxes before deploying.