React Compiler and Automatic Memoization

Published: 04 March 2026
on channel: The App Artisan

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In this video, we explore React Compiler and automatic memoization in React 19.

You’ll see how it replaces manual memoization with React.memo, useMemo, and useCallback, how to configure it in both Vite and Next.js, and how incremental adoption works.

We also explore its limitations, common pitfalls, and what you should know before using it in production.

Official Docs:
https://react.dev/learn/react-compiler

Installation:
Vite
https://react.dev/learn/react-compile...
Next.js
https://nextjs.org/docs/app/api-refer...

Rules of React:
https://react.dev/reference/rules

Incremental Adoption:
https://react.dev/learn/react-compile...

Timestamps:
0:00 Intro
0:32 Memoization
1:12 Rendering in React
1:37 Memoization in React
2:40 Manual Memoization
3:04 React Compiler
3:41 Demo App (Vite)
10:55 Demo App (Next.js)
12:19 Rules and Limitations
15:28 Should You Start Using It?
16:11 Incremental Adoption
21:36 Summary

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