useCallback Hook in React Explained in Hindi 🔥 | Stop Unnecessary Re-renders ⚡

Learn how the useCallback hook works in React and why it is important for performance optimization. In this video, we’ll understand how useCallback helps prevent unnecessary re-renders when passing functions to child components, especially with React.memo. Using a simple parent-child component example, you’ll clearly see: Why child components re-render How React.memo works Why functions cause unnecessary renders How useCallback fixes the issue Best practices for React performance optimization Code Example Covered: ✔ useState ✔ useCallback ✔ React.memo ✔ Parent & Child Components ✔ Preventing unnecessary renders This tutorial is perfect for React beginners and intermediate developers who want to write optimized React applications. #ReactJS #useCallback #ReactHooks #ReactMemo #FrontendDevelopment #JavaScript #WebDevelopment #ReactTutorial