jotai
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👻 Primitive and flexible state management for React
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TypeScript
import type { Atom, PrimitiveAtom, WritableAtom } from './atom';
export type Getter = Parameters<Atom<unknown>['read']>[0];
export type Setter = Parameters<WritableAtom<unknown, unknown[], unknown>['write']>[1];
export type ExtractAtomValue<AtomType> = AtomType extends Atom<infer Value> ? Value : never;
export type ExtractAtomArgs<AtomType> = AtomType extends WritableAtom<unknown, infer Args, infer _Result> ? Args : never;
export type ExtractAtomResult<AtomType> = AtomType extends WritableAtom<unknown, infer _Args, infer Result> ? Result : never;
export type SetStateAction<Value> = ExtractAtomArgs<PrimitiveAtom<Value>>[0];