functionalscript

Version:

FunctionalScript is a purely functional subset of JavaScript

github.com/functionalscript/functionalscript

4 lines (3 loc) • 235 B

TypeScript

export type Nullable<T> = T | null; export declare const map: <T, R>(f: (value: T) => R) => (value: Nullable<T>) => Nullable<R>; export declare const match: <T, R>(f: (_: T) => R) => (none: () => R) => (_: Nullable<T>) => Nullable<R>;