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fauxsaurus/FN.ts

Last active October 20, 2025 17:29
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An extremely handy utility type for functions.
Raw
FN.ts
export type FN<I extends unknown[] = [], O = void> = (...args: I) => O
// usage
type IProps<T> = {callback?: FN; onChange: FN<[T]>; calculate: FN<T[], T>}
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