@obs-hq/money

Description

A simple and tiny library with no dependencies for monetary operations. Solves javascript rounding problems and guarantees proper rounding to cents.

Instalation

npm -i @obs-hq/money

Use

const money = require(`@obs-hq/money`)

const value = money.value(10.000001)
console.log(value) // prints 10.01

Methods

• value: return currency value
• sum: sum two amounts,
• subtract: substract two amonts,
• multiply: multiply an amount by a factor
• divide: divide an amount by a factor
• percent: compute a percent from an amount
• applyDiscount: apply a percent discount to base amount
• maxTax:compute tax from base amount, follow max policy from percent value and fee value
• applyTax:apply a percent tax to base amount
• applyMaxTax: apply tax to base amount, follow max policy from percent value and fee value
• applySumTax: apply tax to base amount, follow sum policy from percent value and fee value

Quick Examples

const money = require(`@obs-hq/money`)

money.value(0.0000001) // 0.01
money.sum(9.999, 0.001) // 10
money.sum(9.999, 0.01) // 10.01
money.subtract(1.01, 0.99) // 0.02
money.multiply(165, 1.40) // 231
money.divide(123.45, 2) // 61.73
money.percent(100, 50.000001452) // 50.01
money.percent(999.99, 50) // 500
money.maxTax(100, 10, 20.021) // 20.03
money.applyDiscount(100, 10) // 90
money.applyTax(100, 10) // 110
money.applyMaxTax(100, 10, 20) // 120
money.applySumTax(100, 10, 20) // 130

Tests

npm run test