Building Custom React Hooks for Every Use Case

Data Fetching Hooks

A well-designed useFetch hook encapsulates the entire data fetching lifecycle — loading state, error handling, data caching, and refetching. Accept a URL and options parameter, return { data, error, isLoading, refetch }. Use useRef to track the current request and abort previous requests when parameters change. Implement stale-while-revalidate by returning cached data immediately while fetching fresh data in the background. For most production applications, consider using established data fetching libraries like React Query or SWR that provide caching, deduplication, and background refetching out of the box.

UI Enhancement Hooks

Custom hooks simplify common UI patterns. A useClickOutside hook detects clicks outside a referenced element for closing modals and dropdowns. A useKeyboardShortcut hook registers and cleans up keyboard event listeners for application-wide shortcuts. A useWindowSize hook tracks viewport dimensions for responsive logic that cannot be handled by CSS alone. A useClipboard hook provides a copy-to-clipboard function with success state for user feedback. Each hook follows the same pattern — accept configuration, manage lifecycle with useEffect, and return a clean API.

• useClickOutside: Close modals and dropdowns when users click elsewhere
• useKeyboardShortcut: Register keyboard shortcuts with proper cleanup on unmount
• useWindowSize: Track viewport dimensions for responsive JavaScript logic
• useClipboard: Copy text to clipboard with success state for user feedback

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