biggystring

biggystring

Floating point big number library using only strings as inputs and outputs

Install

npm install biggystring

Use

const bs = require('biggystring')

Basic Math

console.log(bs.add('32', '10') // => '42'
console.log(bs.sub('32', '10') // => '22'
console.log(bs.mul('32', '10') // => '320'
console.log(bs.div('32', '10') // => '3' Truncates remainder

Hex

console.log(bs.add('0xa', '10')   // => '20'
console.log(bs.add('0xa', '0x20') // => '42'
console.log(bs.add('10', '0x10')  // => '26'

Comparisons

console.log(bs.gt('32', '10')  // => True
console.log(bs.lt('32', '10')  // => False
console.log(bs.gte('32', '32') // => True
console.log(bs.lte('32', '10') // => False
console.log(bs.eq('32', '10')  // => False
console.log(bs.eq('32', '32')  // => True

Floating point operations (base 10 only)

console.log(bs.add('3.2', '1.3') // => '4.5'
console.log(bs.sub('3.2', '1.3') // => '1.9'
console.log(bs.mul('3.2', '1.3') // => '4.16'

// For `div`, 3rd arg is base, 4th arg is decimal precision
console.log(bs.div('10', '3.0', 10, 5) // => '3.33333'
console.log(bs.div('1.23', '3.3', 10, 5) // => '0.37272'