Nodejs Number Format format(digit, separator)

Method Source Code

/**// ww w .  j a v a 2 s. co m
 * Number.js
 *
 * Extends the Number object.
 *
 * @author Maxime Ollagnier
 */
/**
 * Returns this Number as a String formatted with 'digit' digits after the 'separator'.
 */
Number.prototype.format = function(digit, separator)
{
    if (typeof digit != 'number' || digit > 99) 
    {
        throw new Error('Number.toFormattedString - Wrong argument.');
    }
    var decimals = Math.round(((this - Math.floor(this)) * Math.pow(10, digit))).toString();
    while (digit - decimals.length > 0) 
    {
        decimals = '0' + decimals;
    }
    if (typeof separator != 'string' || separator.length != 1) 
    {
        separator = '.';
    }
    return Math.floor(this).toString() + separator + decimals.substr(0, digit);
};

Related

1. commafy()

   Number.prototype.commafy = function () {
     return String(this).commafy();
   

2. commafy()

   Number.prototype.commafy = function () {
     return String(this).commafy();
   String.prototype.commafy = function () {
     return this.replace(/(^|[^\w.])(\d{4,})/g, function($0, $1, $2) {
       return $1 + $2.replace(/\d(?=(?:\d\d\d)+(?!\d))/g, "$&,");
     });
   

3. format()

   Number.prototype.format = function () {
     var str = this.toString();
     var Re = /[^0-9]/g;
     var ReN = /(-?[0-9]+)([0-9]{3})/;
     str = str.replace(Re,'');              
     while (ReN.test(str)) { 
       str = str.replace(ReN, "$1,$2"); 
     return str;
   ...
   

4. format()

   Number.prototype.format = function() {
     var n = this, decPlaces = 2, decSeparator = ".", thouSeparator = ",", sign = n < 0 ? "-" : "", i = parseInt( n = Math.abs(+n || 0).toFixed(decPlaces)) + "", j = ( j = i.length) > 3 ? j % 3 : 0;
     return sign + ( j ? i.substr(0, j) + thouSeparator : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + thouSeparator) + ( decPlaces ? decSeparator + Math.abs(n - i).toFixed(decPlaces).slice(2) : "");
   };
   function isNumber(n) {
     return !isNaN(parseFloat(n)) && isFinite(n);
   var dayNames = new Array("Duminica", "Luni", "Marti", "Miercuri", "Joi", "Vineri", "Sambata");
   var monthNames = new Array("Ianuarie", "Februarie", "Martie", "Aprilie", "Mai", "Iunie", "Iulie", "August", "Septembrie", "Octobmrie", "Noiembrie", "Decembrie");
   ...
   

5. format(decimalPoints,thousandsSep,decimalSep)

   Number.prototype.format=function(decimalPoints,thousandsSep,decimalSep){
     var val=this+'',re=/^(-?)(\d+)/,x,y;
     if (decimalPoints!=null) val = this.toFixed(decimalPoints);
     if (thousandsSep && (x=re.exec(val))){
       for (var a=x[2].split(''),i=a.length-3;i>0;i-=3) a.splice(i,0,thousandsSep);
       val=val.replace(re,x[1]+a.join(''));
     if (decimalSep) val=val.replace(/\./,decimalSep);
     return val;
   ...
   

6. format(fmt)

   Number.prototype.format = function (fmt) {
       var s = this.toFixed(2).toString();
       var decimals = "";
       if (s.indexOf(".") > 0) {
           var arr = s.split('.');
           s = arr[0]; decimals = arr[1];
       if (this > 0 && this < 1000) {
           if (decimals != "" && parseInt(decimals) != 0) {
   ...
   

7. format(k, fixLength)

   Number.decPoint = ',';
   Number.thousand_sep = '.';
   Number.prototype.format = function (k, fixLength) {
       if (!k) k = 0;
       var neu = '';
       var sign = this < 0 ? '-' : '';
       var f = Math.pow(10, k);
       var zahl = Math.abs(this);
       zahl = '' + parseInt(zahl * f + .5) / f;
   ...
   

8. format(n, x)

   Number.prototype.format = function(n, x) {
     var re = '\\d(?=(\\d{' + (x || 3) + '})+' + (n > 0 ? '\\.' : '$') + ')';
     return this.toFixed(Math.max(0, ~~n)).replace(new RegExp(re, 'g'), '$&,');
   };
   

9. format(n, x)

   Number.prototype.format = function(n, x) {
       var re = '(\\d)(?=(\\d{' + (x || 3) + '})+' + (n > 0 ? '\\.' : '$') + ')';
       return this.toFixed(Math.max(0, ~~n)).replace(new RegExp(re, 'g'), '$1,');
   };