gcanti
A porting of safe-money (Haskell)
Blog post: https://ren.zone/articles/safe-money
Features
Newtypes
Via newtype-ts
BigIntegerExchangeRateIntegerNaturalNonZeroInteger
Type aliases
NonZeroRationalPositiveRationalRational
Discrete
import { Integer } from 'money-ts/lib/Integer'
import { Discrete } from 'money-ts/lib/Discrete'
declare const ix: Integer // 2
declare const iy: Integer // 3
const x = new Discrete({ dimension: 'EUR', unit: 'cent' }, ix)
const y = new Discrete({ dimension: 'EUR', unit: 'cent' }, iy)
// z: Discrete<"EUR", "cent">
const z = x.add(y)
console.log(z)
// => EUR cent 5Dense
import * as dense from 'money-ts/lib/Dense'
import 'money-ts/lib/scale/EUR' // <= required in order to convert a discrete to a dense
const d = dense.fromDiscrete(z)
console.log(d)
// => EUR 5 / 100Runtime types for IO validation
Via io-ts
BigIntegerDenseDiscreteExchangeRateIntegerNaturalNonZeroIntegerNonZeroRationalPositiveRationalRational