Demystifying React Performance
summary
Concrete takeaways and measurable steps appear: enable react devtools and the user timing API to profile rendering and Chrome flame charts, confirm production via NODE_ENV, and avoid blanket shouldComponentUpdate hacks which can add ~200 milliseconds in an example. Use keys on lists, normalize state to prefer primitives, memoize selectors with reselect, split bundles with React.lazy / Suspense or react-loadable, and strip propTypes with Babel so less code parses — each change measured before and after.
AI-written summary · about
chapters (5)
- 0:00Start
- 0:05CUSTOM INK
- 12:06What is production mode?
- 22:46Fun Fact About Selectors
- 24:47react-lazyload
related talks
27mProfiling and Optimizing Performance of React Applications
11mMaximizing React Perfomance with DevTools: Profiler and Components
26mLightning Fast React Apps
27mBuilding High Performance React Applications
20mPerformance Anxiety with React: Track and increase speed of your apps
51mTips and tricks for optimizing your React application
16mDeep dive into react profiles and performance optimisation
34mOptimizing Performance in Large-Scale React & Node.js Applications