Andrius Cunha Castro alemaocastro1986
cesalberca
/ maybe.spec.ts
Created
January 23, 2020 18:14
Maybe monad implemented in TypeScript. Base of the work of https://codewithstyle.info/advanced-functional-programming-in-typescript-maybe-monad/
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import { Maybe } from './maybe' | |
| describe('Maybe', () => { | |
| it('should handle a value', () => { | |
| const maybe = Maybe.some('test') | |
| expect(maybe.getOrElse('')).toBe('test') | |
| }) | |
| it('should handle an undefined value', () => { | |
| const maybe = Maybe.fromValue<string>(undefined) |