useReact

Boolean (or set) state with a flip/toggle, optional custom setters, and a stable toggler function.

Increment, decrement, or set a number with optional min/max so values stay in range.

Debounce a value: the output updates only after the input has settled for a chosen delay.

Read the value from the previous render - handy for diffs, animations, and simple undo of values.

A ref that always points at the latest value, so callbacks and effects can read fresh data without re-subscribing.

Throttle a value so it can change at most once per interval while the input keeps moving.

Async loadable state: loading / ready / error, optional data, and cancel for stale work.

Sync React state with `localStorage` (or any `Storage`) with JSON and optional `remove`.

Async storage: load with `getItem` after mount, then persist with a loading flag and serializers.

Record when a value last changed, expose a time difference, and reset the timer when needed.

Every change becomes a history snapshot: undo, redo, clear, and cap length with capacity.

Ref-based history, but you commit snapshots explicitly for frequent or batched updates.

Ref history: record a new snapshot only after the value has been still for a debounce period.

Ref history: record at most one snapshot per throttle window while the value changes fast.

Event handler with a stable identity that always calls the latest implementation.

Run a function once on mount, optionally with a returned cleanup on unmount.