Optimize React app...

📰 Dev.to · Rajan lagah

Optimizing React app re-renders on button clicks

intermediate Published 11 Apr 2026

Action Steps

Identify the cause of unnecessary re-renders
Use React hooks like useMemo or useCallback to memoize functions
Implement shouldComponentUpdate to control re-renders
Use React DevTools to debug and profile component re-renders

Who Needs to Know This

Frontend developers and software engineers can benefit from understanding how to optimize React app performance, especially when dealing with frequent re-renders.

Key Insight

💡 Unnecessary re-renders can be optimized using React hooks and lifecycle methods