In React, useMemo and useCallback are powerful hooks that help optimize performance by preventing unnecessary computations and re-renders. However, when dealing with intervals, improper usage can lead to stale state issues, excessive function recreations, or memory leaks. Understanding how to effectively use useMemo and useCallback with intervals is crucial for building efficient and responsive applications.

In this guide, we’ll explore best practices for combining useMemo and useCallback with intervals to improve performance and maintainability in React. Whether you’re implementing real-time updates, countdown timers, or live data fetching, these techniques will help you write cleaner, faster, and more scalable React components.