Maximizing React Perfomance with DevTools: Profiler and Components
summary
Shows concrete use of react Dev tools Profiler and Components to find why specific components re render, using Profiler recordings, flame/rank charts and highlight updates to visualize bad paths. Demonstrates six fixes with measurable gains: hoist nested components to avoid remounts, set stable initial state to stop useless renders, move modal state out of children, memoize provider values and child props with useMemo and React.memo to cut render time and weird bugs.
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chapters (4)
- 0:00React performance challenges
- 1:13React DevTools features
- 4:52Performance mistakes and fixes
- 9:55Optimizing React apps
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