@fnxt/result v0.1.4

fnxt Result

fnxt library for TypeScript (and JavaScript). Heavily influenced by F#.

Installation

npm install @fnxt/result

Usage

import {Success, Failure, map, mapFailure} from '@fnxt/result';

const success = Success(42);
const failure = Failure(42);
const fnMap = map((x: number) => x + 1);
const fnMapFailure = mapFailure((x: number) => x + 1);

console.log(fnMap(success)); // Success(43)
console.log(fnMap(failure)); // Success(42)

console.log(fnMapFailure(success)); // Success(42)
console.log(fnMapFailure(failure)); // Success(43)

Reference

For more information FSharp Result Docs and Result Module and "Railway oriented programming" by Scott Wlaschin.