The Ultimate React Performance Guide (Part 1): Stop Useless Re-Renders!

Welcome to Part 1 of the React Performance Mastery Series! In this video, we break down the core fundamentals every React developer MUST understand to build fast, smooth, and scalable applications. If your React components re-render too much… If your UI feels laggy… If useCallback, useMemo, and React.memo() confuse you… Or if your search inputs and scroll events keep firing like crazy… 👉 What You’ll Learn in Part 1 In this video, you’ll learn: ✅ Understanding React Re-Renders ✅ Memoization in React (The Right Way) ✅ Derived State Patterns ✅ Debouncing & Throttling in React 🎁 Bonus: Explore the full React Hooks Cheatsheet 👉 https://tapascript.io/books/react-hoo... Timecodes 0:00 - Performance Patterns 00:52 - What’s in Part 1? 01:51 - Re-Rendering in React 05:29 - Memoization 07:58 - The memo() 12:21 - The useCallback() 20:46 - the useMemo() 28:21 - The Derived State 33:53 - Debouncing 41:40 - Throttling 46:20 - Tasks and End 🔥 If you enjoyed this, Part 2 will blow your mind. We’ll deep dive into: React Compiler Component isolation Virtualization Context optimization Lazy loading Bundle performance 🔔 Subscribe so you don’t miss it! ⭐ Subscribe:    / tapasadhikary   ⭐ Join:    / @tapasadhikary   Important Links Join My Discord:   / discord   Follow tapaScript on GitHub: https://github.com/tapascript Download the Template: https://topmate.io/tapasadhikary/1737706 Fake API Repo: https://github.com/tapascript/fake-apis Source Code Used: https://github.com/tapascript/15-days... Code in React 19 Repo: https://github.com/atapas/code-in-rea... If you enjoyed this, check out my other popular series: 40 Days of JavaScript ✅ Start 40 Days of JavaScript:    • Day 01: Introduction to JavaScript & Setti...   ✅ Here is another JavaScript Learning Path I recommend: https://scrimba.com/t0js?via=tapascript ✅ Download the 40 Days of JavaScript Tracker Template: Link to the template: https://topmate.io/tapasadhikary/382755 👋 Like my work? Thank You! Join as a Member:    / @tapasadhikary   Sponsor Me: https://github.com/sponsors/atapas Sponsor my Blog: https://blog.greenroots.info/sponsor 🤝 My Links: Blog: https://blog.greenroots.info/ Follow on X(Twitter):   / tapasadhikary   Connect on LinkedIn:   / tapasadhikary   Follow My Work on GitHub: https://github.com/atapas About Me: Tapas Adhikary is an Educator at tapaScript, a Tech enthusiast, Writer, YouTuber, and maintainer/contributor of open-source projects. He is a full-stack developer with vast experience building SaaS solutions. He is the founder of the ReactPlay platform, which is driven by open-source projects and a fast-growing community. You can find more about him at https://tapasadhikary.com & https://tapascript.io #reactjs #designpatterns #reactcourse #learnreact