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readme.md

round-to

Round a number to a specific number of decimal places: 1.234 → 1.2

Install

$ npm install round-to

Usage

const roundTo = require('round-to');

roundTo(1.234, 2);
//=> 1.23

roundTo.up(1.234, 2);
//=> 1.24

roundTo.down(1.234, 2);
//=> 1.23

Numbers are rounded to a specific number of fractional digits. Specifying a negative precision will round to any number of places to the left of the decimal.

roundTo(1234.56, -2);
//=> 1200

Specifying an infinite precision will assume infinite decimal places.

roundTo(0.1231782638, Infinity);
//=> 0.1231782638

API

roundTo(number, precision)

Round the decimals with Math.round.

roundTo.up(number, precision)

Round up the decimals with Math.ceil.

roundTo.down(number, precision)

Round down the decimals with Math.floor.

number

Type: number

Number to adjust.

precision

Type: number (Integer or infinity)

Number of decimal places.