~/talk

Stop Memoizing with “React Forget”

Talkat ReactNext 2025 · on Monday, 2025-12-15· [react, frontend-architecture]
slides:none on file

Compiler-driven transforms replace runtime useMemo/useCallback/memo by hoisting cached values and functions into compile-time caches, building a dependency graph and running only the exact update logic needed. Real apps see big wins: 11s → 2.5s JS time on a heavy Lupa app and static sites from 932ms → 652ms, plus up to 2.5x faster interactions. Install as an external npm/plugin (supports React 17–19 and RN 0.70+), surfacing lint rules, offering a use_no_m directive, and skipping or improving existing hook-based code automatically.

AI-written summary · about

  1. 0:00Introduction
  2. 2:24React's new tool
  3. 8:27React performance issues
  4. 15:25How the compiler works
  5. 21:11Compiler advantages
  6. 23:22Performance results
  7. 25:30Moving to new code
  8. 27:20Summary and Q&A
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