Debounced Search with useEffect + useRef (No UI Jank)

Optimized a product search bar in a React + AntD app.
🚫 Problem:

• Every keystroke triggered API call
• UI felt sluggish, unnecessary re-renders ✅ Fix:
• Added debounced search via useEffect + setTimeout
• Used useRef to track the time
• Disabled input while loading

💡 Code Snippet:

useEffect(() => {
  const timer = setTimeout(() => search(query), 400);
  return () => clearTimeout(timer);
}, [query]);

⚡ Search is smoother, fewer network calls, happier users.