Nodejs Number to Percentage Format toPercent(n)

Method Source Code

Number.prototype.toPercent = function(n) {
   n = n || 0;//w w w  .j av  a  2s. c  o  m
   return (Math.round(this * Math.pow(10, n + 2)) / Math.pow(10, n)).toFixed(n) + '%';
}

Related

1. toPercent(ofTotalAmount)

   Number.prototype.toPercent = function (ofTotalAmount) {
       "use strict";
       var n, t;
       var sign, suffix, i;
       n = this;
       try {
           t = (typeof ofTotalAmount === 'undefined' || isNaN(ofTotalAmount)) ? 100 : ofTotalAmount;
           if (t === 0) throw "division exception averted";
           if (t <= n) throw "is too low";
   ...
   

2. toPercent(places)

   Number.prototype.toPercent = function(places) {
     return (this * 100).toFixed(places) + '%';
   };
   

3. toPercentage(radix)

   Number.prototype.toPercentage = function (radix) {
       var num = this * 100;
       return num.roundToFixed(radix);
   };