How to Build a Reusable Debounce Hook in React for Better Performance

React applications that fire API requests on every keystroke can suffer from unnecessary network traffic and degraded performance. Debouncing addresses this by delaying function execution until a user stops typing for a set duration, reducing redundant calls. A custom useDebounce hook in React leverages useState and useEffect to store a delayed value and clear pending timers on each new input. The hook works in both JavaScript and TypeScript and can be dropped into any component handling search, autocomplete, or large dataset filtering. This reusable utility improves app performance, reduces backend load, and keeps components cleaner without significant added complexity.