React Compiler in the Extension UI: what it optimizes, where it bails out, and when manual memoization is still needed. Use when deciding whether `useMemo`, `useCallback` or `React.memo` are still required, reviewing reflexive memoization, or working out why a component isn't optimized. Dependency arrays go to `perf-hooks-effects`.
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---
name: perf-react-compiler
description: >
React Compiler in the Extension UI: what it optimizes, where it bails out, and when manual
memoization is still needed. Use when deciding whether `useMemo`, `useCallback` or
`React.memo` are still required, reviewing reflexive memoization, or working out why a
component isn't optimized. Dependency arrays go to `perf-hooks-effects`.
base: true
---
