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smart-round

v1.0.0

Published

Round big numbers with arbitrary precision

Downloads

277

Readme

smart-round

Build Status Code Style Known Vulnerabilities

Round big numbers with arbitrary precision

Installation

$ npm install --save smart-round

Usage

The module exports a function that let you initialize a rounder function.

smartRound(maxPrecision, minDecimals, maxDecimals)

maxPrecision: Amount of significant digits to return. minDecimals: Minimum amount of decimals to return. maxDecimals: Maximum amount of decimals to return.

rounder(number, shouldFormat)

number: The value to round as any type supported by bignumber.js package. shouldFormat: Whether the returned string should be formatted or not, using accounting package.

Example

const smartRound = require('smart-round')

const rounder1 = smartRound(6, 0, 6)

console.log(rounder1('1234.56789', false)) // '1234.57'
console.log(rounder1('1234.56789', true)) // '1,234.56'

const rounder2 = smartRound(4, 2, 6)

console.log(rounder2('1234', true)) // '1,234.00'
console.log(rounder2('0.000123456', true)) // '0.000123'

ES5 support

A transpiled version is available in es5/index.js. To use that specific version, this syntax is also supported:

var smartRound = require('smart-round/es5');

License

MIT