functional-switch

Functional Switch

A functional implementation of switch.

It just an idea right now and I have not written any code, yet. Discussions are welcome!

Installation

npm install functional-switch --save

Usage

import { cond, when, otherwise } from 'functional-switch'

// simple example
const isFruitOrVegetable = cond(
  when('apple', 'isFruit'),
  when('orange', 'isFruit'),
  when('eggplant', 'isVegetable'),
  otherwise('isFruit')
)

isFruitOrVegetable('apple') // isFruit

when is curried

when('apple')('isFruit')

when also accepts a function or a regular expression

when(/apple/)
when(str => str.includes('apple'))