react-patterns
React 19 Patterns and Best Practices
Modern React 19 patterns leveraging the React Compiler, Server Actions, and new hooks.
Compiler-Friendly Code
The React Compiler automatically optimizes components for performance. Write code that works well with it:
Best Practices:
- Keep components pure and props serializable
- Derive values during render (don't stash in refs unnecessarily)
- Keep event handlers inline unless they close over large mutable objects
- Verify compiler is working (DevTools ✨ badge)
- Opt-out problematic components with
"use no memo"while refactoring
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