Nodejs Number Format numberFormat()

Method Source Code

String.prototype.numberFormat = function() {
    return this.replace(/(\d)(?=(?:\d{3})+(?!\d))/g,'$1,');
};

Related

1. formatformat(n, x)

   'use strict';
   Number.prototype.format = function format(n, x) {
     const re = `\\d(?=(\\d{${x || 3}})+${(n > 0 ? '\\.' : '$')})`;
     return this.toFixed(Math.max(0, ~~n)).replace(new RegExp(re, 'g'), '$&,');
   };
   String.prototype.rpad = function rpad(padString, length) {
     let str = this;
     while (str.length < length) {
       str = str + padString;
   ...
   

2. formatted()

   Number.prototype.formatted = function(){
     if (!this) return 0;
     var sign   = this < 0 ? '-' : '',
       num    = Math.floor(Math.abs(this)*100+0.50000000001),
       cents  = (num % 100).toString().substring(0, 2);
     num = Math.floor(num/100).toString();
     for (var i = 0, l = Math.floor((num.length-1)/3), p = 3; i < l; i++, p += 4){
       num = num.substring(0, num.length - p) + ' ' + num.substring(num.length - p);
     return sign + num + '.' + (cents < 10 ? '0' + cents : cents);
   };
   

3. toSize()

   Object.defineProperty( Number.prototype, "toSize", {
       "get": function() {
           return function( bitsNotBytes ) {
               var sizes = ['', ' Kb', ' Mb', ' Gb', ' Tb', ' Pb' ];
               var unit  = 0, remain = Math.abs( this * 1 );
               if ( bitsNotBytes )
                   remain *= 8;
               while ( remain >= 1024 && unit<5 )
                   remain /= 1024, unit++;
   ...
   

4. CommaFormatted(n,symbol)

   Number.prototype.CommaFormatted = function(n,symbol) {
     return (symbol || '\uffe5') + this.toFixed(n === void 0 ? 2 : n).toString().replace(/(\d)(?=(\d{3})+($|\.))/g, '$1,');
   };
   (4564546).CommaFormatted(2,"$");
   

5. numberFormat()

   String.prototype.numberFormat=function() {
      return this.replace(/(\d)(?=(?:\d{3})+(?!\d))/g,'$1,');
   function numberformatter(vNum){
     return String(vNum).numberFormat();
   

6. numberWithCommas()

   String.prototype.numberWithCommas = function () {
     if (typeof parseFloat(this) === "number") {
       thiss = (Math.round((this) * 100) / 100).toString();
       var dotLastIndex = this.lastIndexOf(".");
       if (dotLastIndex === -1) {
         thiss = this + ".00"
       } else {
         var decimal = this.substring(dotLastIndex+1);
         var nonDecimal = this.substring(0, dotLastIndex);
   ...