React Performance Optimization Patterns Course

React makes it easy to build UIs, but building fast React apps is a different skill altogether. In this hands-on, real-world React Performance Optimization crash course, you’ll learn how React actually re-renders, why your app slows down, and which performance patterns truly matter in production — not just theory, but battle-tested techniques used by senior engineers. This video is about knowing what to optimize, when to optimize, and how to do it right. This course was created by @tapasadhikary 📚 Resources - Check out the React Hooks Cheatsheet: https://www.tapascript.io/books/react-hooks-cheatsheet - tapaScript YouTube Channel: https://youtube.com/tapasadhikary - All my articles, handbooks on freeCodecamp: https://www.freecodecamp.org/news/author/atapas/ - Join my FREE Course, 40 Days of JavaScript: https://www.youtube.com/playlist?list=PLIJrr73KDmRw2Fwwjt6cPC_tk5vcSICCu - Join my FREE Course, 15 days of React Design patterns: https://www.youtube.com/playlist?list=PLIJrr73KDmRyQVT__uFZvaVfWPdfyMFHC ⭐️ Chapters ⭐️ - 0:00:00 Performance Patterns - 0:01:16 What’s in Part 1? - 0:01:37 Re-Rendering in React - 0:05:16 Memoization - 0:07:44 The memo() - 0:12:08 The useCallback() - 0:20:33 the useMemo() - 0:28:07 The Derived State - 0:33:38 Debouncing - 0:41:27 Throttling - 0:46:32 Tasks from Part 1 - 0:48:10 Advanced Patterns - 0:49:11 What’s in Part 2? - 0:50:21 React Compiler - 1:00:11 Lazy Loading & Suspense - 1:11:31 Component Isolation - 1:13:35 Context Optimizations - 1:16:57 Virtualization - 1:23:46 Concurrency and useTransition() - 1:27:41 Deferred Value - 1:30:01 List and Keys - 1:31:01 Tools - 1:32:37 Tasks from Part 2 - 1:34:08 One Word of Wisdom 🤝 Connect with Tapas - Subscribe to my YouTube Channel: https://www.youtube.com/tapasadhikary - Connect on LinkedIn: https://www.linkedin.com/in/tapasadhikary/ - Follow on X: https://twitter.com/tapasadhikary - Check out my work on GitHub: https://github.com/atapas - Follow tapaScript on GitHub: https://github.com/tapascript - Join tapaScript Discord: https://discord.gg/ux9BchWEW3 ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp 🎉 Thanks to our Champion and Sponsor supporters: 👾 @omerhattapoglu1158 👾 @goddardtan 👾 @akihayashi6629 👾 @kikilogsin 👾 @anthonycampbell2148 👾 @tobymiller7790 👾 @rajibdassharma497 👾 @CloudVirtualizationEnthusiast 👾 @adilsoncarlosvianacarlos 👾 @martinmacchia1564 👾 @ulisesmoralez4160 👾 @_Oscar_ 👾 @jedi-or-sith2728 👾 @justinhual1290 -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news