React optimization: React.memo + strategic keys for expensive re-renders
When child components do heavy computation, this pattern helps React skip renders:
✓ React.memo + child keys
✗ Wrapper keys only
Only helps with expensive renders - profile first
#ReactJS#Performance
Master React concurrency with startTransition, keep your UI fluid even under heavy load
Why it’s essential:
• Prioritize user input (typing, clicks) over costly renders
• Avoid janky freezes during data-heavy tasks
• Ship seamless loading feedback with almost zero boilerplate
Virtualize huge lists with @tanstack/react-virtual’s useVirtualizer hook so you only render what’s in view for instant, jank-free scrolling.
#ReactJS#TanStack#WebPerf#WebDevTips
Virtualize huge lists with @tanstack/react-virtual’s useVirtualizer hook so you only render what’s in view for instant, jank-free scrolling.
#ReactJS#TanStack#WebPerf#WebDevTips
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