$ npm install --save bankers-rounding
// ES5 var bankersRounding = require('bankers-rounding'); // ES6 import bankersRounding from 'bankers-rounding'; bankersRounding(2.5); // 2 bankersRounding(3.5); // 4 bankersRounding(0.025, 2); // 0.02 bankersRounding(0.035, 2); // 0.04