7 React Mistakes That Are Secretly Destroying Your App's Performance (Fix These NOW) | Tamil
Is your React app slow? You're probably making one of these 7 deadly performance mistakes — and you don't even know it!
In this React Tamil tutorial, I break down the most common React performance killers that even senior developers miss every day — from unnecessary re-renders and inline function traps to bloated bundles and useEffect waterfalls. I'll show you exactly what's wrong and how to fix it fast with practical examples in Tamil.
⏱ Timestamps:
00:00 - Introduction & The Performance Problem
01:17 - 1. Fixing Unnecessary Re-renders
02:34 - 2. Inline Functions & Object References
03:46 - 3. The React Key Prop Trap
05:12 - 4. Misusing useMemo & useCallback
07:02 - 5. Bloated Bundles & Code Splitting
09:20 - 6. Long Lists & Virtualization
10:37 - Frontend vs Backend System Design
11:37 - 7. useEffect & Fetch Waterfalls
13:32 - Full React Performance Checklist
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