Custom Hooks Composition in React
From the React Design Patterns cheat sheet · State Management Patterns · verified Jul 2026
Custom Hooks Composition
Build complex behavior by composing smaller, focused custom hooks
jsx
function useDebouncedSearch(query, delay = 300) {
const debounced = useDebounce(query, delay);
const { data, loading } = useFetch(`/api/search?q=${debounced}`);
return { results: data, loading };
}💡 Custom hooks compose freely - useDebouncedSearch is just useDebounce + useFetch
⚡ Each hook should do ONE thing well - composition handles the complex cases
📌 Return objects when destructuring is more readable; arrays for tuple-like APIs
🟢 Always use the cancelled flag pattern in async effects to avoid memory leaks
custom-hookscomposition