@crimson_dev/use-resize-observerZero-dependency React 19 ResizeObserver hook

ESNext-first. Worker-native. < 1.1kB gzip. React Compiler-safe.

< 1.1kB gzip

Full main entry with pool, scheduler, and hook — just 1.11 kB gzip. Core entry: 330B. Zero runtime dependencies.

Share live measurements with compute workers via SharedArrayBuffer + Float16Array for jank-free UIs.

100 elements resizing simultaneously produce exactly 1 React render cycle via rAF batching + startTransition.

Built for React 19.3+ with useEffectEvent semantics. Verified compatible with the React Compiler.

ES2026 features throughout — using/Symbol.dispose, Float16Array, Atomics dirty-flag protocol, FinalizationRegistry.

isolatedDeclarations, erasableSyntaxOnly, exactOptionalPropertyTypes — the strictest possible TS config.