davidflorin/node-math-precision

Math.round, Math.ceil, Math.floor with precision parameter

math-precision

This node.js package gives you a cleaner way to round numbers using pecision

e.g. To round 1.2347 with precision 2 you can call

math.round(1.2347, 2) = 1.23

instead of using something like

Math.round(1.2347 * 100) / 100 // = 1.23 (this is done beneath the function call .round(number, precision))

See other examples or run the tests

Install

$ npm i math-precision

Examples

round

var round = require('math-precision').round

console.log(round(1.2347, 2))        // 1.23
console.log(round(1.235, 2))         // 1.24
console.log(round(1.2, 2))           // 1.2

ceil

var ceil = require('math-precision').ceil

console.log(ceil(1.2347, 2))          // 1.24
console.log(ceil(1.2, 2))             // 1.2

floor

var floor = require('math-precision').floor

console.log(floor(1.2361, 2))         // 1.23
console.log(floor(1.8, 2))            // 1.8

using math object

var math = require('math-precision')

console.log(math.round(1.2358, 2))    // 1.24
console.log(math.ceil(1.2358, 2))     // 1.24
console.log(math.floor(1.2358, 2))    // 1.23

Test

Simply clone the repo, npm install, and run npm test

License

MIT