Nodejs Money Format toMoney(decimals, decimal_sep, thousands_sep)

Method Source Code

Number.prototype.toMoney = function(decimals, decimal_sep, thousands_sep)
{ 
   var n = this,//from  w w w. j  av a  2s. c o  m
   c = isNaN(decimals) ? 2 : Math.abs(decimals), //if decimal is zero we must take it, it means user does not want to show any decimal
   d = decimal_sep || ',', //if no decimal separetor is passed we use the comma as default decimal separator (we MUST use a decimal separator)

   /*
   according to [http://stackoverflow.com/questions/411352/how-best-to-determine-if-an-argument-is-not-sent-to-the-javascript-function]
   the fastest way to check for not defined parameter is to use typeof value === 'undefined' 
   rather than doing value === undefined.
   */   
   t = (typeof thousands_sep === 'undefined') ? '.' : thousands_sep, //if you don't want ot use a thousands separator you can pass empty string as thousands_sep value

   sign = (n < 0) ? '-' : '',

   //extracting the absolute value of the integer part of the number and converting to string
   i = parseInt(n = Math.abs(n).toFixed(c)) + '', 

   j = ((j = i.length) > 3) ? j % 3 : 0; 
   return sign + (j ? i.substr(0, j) + t : '') + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : ''); 
};

Related

1. formatMoney2(c, d, t)

   Number.prototype.formatMoney2 = function(c, d, t){
       var n = this,
           c = isNaN(c = Math.abs(c)) ? 2 : c,
           d = d == undefined ? "." : d,
           t = t == undefined ? "," : t,
           s = n < 0 ? "-" : "",
           i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "",
           j = (j = i.length) > 3 ? j % 3 : 0;
       return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
   ...
   

2. toMoney()

   Number.prototype.toMoney = function() {
     return '$' + this.toFixed(2);
   };
   

3. toMoney(c, d, t)

   Number.prototype.toMoney = function(c, d, t){
     var n = this, 
         c = isNaN(c = Math.abs(c)) ? 2 : c, 
         d = d == undefined ? "." : d, 
         t = t == undefined ? "," : t, 
         s = n < 0 ? "-" : "", 
         i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", 
         j = (j = i.length) > 3 ? j % 3 : 0;
        return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
   ...
   

4. toMoney(currency)

   Number.prototype.toMoney = function (currency) {
       currency = currency ? currency : "$";
       if (currency === "0.00") {
           return "${0}".format(currency);
       return currency + "" + this.toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, "$1,");
   

5. toMoney(decimals, decimal_sep, thousands_sep)

   Number.prototype.toMoney = function(decimals, decimal_sep, thousands_sep) {
      var n = this;
      var c = isNaN(decimals) ? 0 : Math.abs(decimals);
      var d = decimal_sep || '.';
      var t = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep;
      var sign = (n < 0) ? '-' : '';
      var i = parseInt(n = Math.abs(n).toFixed(c), 10) + '';
      var j = ((j = i.length) > 3) ? j % 3 : 0;
      return sign + (j ? i.substr(0, j) + t : '') + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : '');
   ...
   

6. toMoney(decimals, decimal_sep, thousands_sep)

   Number.prototype.toMoney = function(decimals, decimal_sep, thousands_sep)
      var n = this,
      c = isNaN(decimals) ? 2 : Math.abs(decimals), 
      d = decimal_sep || '.', 
      t = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep, 
      sign = (n < 0) ? '-' : '',
      i = parseInt(n = Math.abs(n).toFixed(c)) + '',
      j = ((j = i.length) > 3) ? j % 3 : 0;
   ...
   

7. money(c, d, t)

   Number.prototype.money = function(c, d, t){
   var n = this*1000, 
       c = isNaN(c = Math.abs(c)) ? 0 : c, 
       d = d == undefined ? "." : d, 
       t = t == undefined ? "," : t, 
       s = n < 0 ? "-" : "", 
       i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", 
       j = (j = i.length) > 3 ? j % 3 : 0;
      const money = s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
   ...
   

8. money(decPlaces, thouSeparator, decSeparator, appendix, prefix)

   Number.prototype.money = function(decPlaces, thouSeparator, decSeparator, appendix, prefix) {
       var n = this,
           decPlaces = isNaN(decPlaces = Math.abs(decPlaces)) ? 2 : decPlaces,
           decSeparator = decSeparator == undefined ? "." : decSeparator,
           thouSeparator = thouSeparator == undefined ? "," : thouSeparator,
           prefix = prefix || '',
           appendix = appendix || '',
           sign = n < 0 ? "-" : "",
           i = parseInt(n = Math.abs(+n || 0).toFixed(decPlaces)) + "",
   ...