tastypie/node_modules/mout/number/enforcePrecision.js

Tastypie is a webservice API framework for Node.js based on Django's Tastypie Framework. It provides a convenient, yet powerful and highly customizable, abstraction for creating REST-style interfaces

var toNumber = require('../lang/toNumber');
    /**
     * Enforce a specific amount of decimal digits and also fix floating
     * point rounding issues.
     */
    function enforcePrecision(val, nDecimalDigits){
        val = toNumber(val);
        var pow = Math.pow(10, nDecimalDigits);
        return +(Math.round(val * pow) / pow).toFixed(nDecimalDigits);
    }
    module.exports = enforcePrecision;