Nodejs String Format format(args)

Method Source Code

String.prototype.format = function(args) { 
   if (arguments.length>0) {
      var result = this; 
      if (arguments.length == 1 && typeof (args) == "object") { 
         for (var key in args) { 
            var reg=new RegExp ("({"+key+"})","g"); 
            result = result.replace(reg, args[key]); 
         } /*from   w w  w. j  av  a  2s  . co  m*/
      } else { 
         for (var i = 0; i < arguments.length; i++) { 
            if(arguments[i]==undefined) { 
               return ""; 
            } else { 
            var reg=new RegExp ("({["+i+"]})","g"); 
            result = result.replace(reg, arguments[i]); 
            } 
         } 
      } 
      return result; 
   } else { 
      return this; 
   } 
};

Related

1. format(args)

   String.prototype.format = function (args) {
       var result = this;
       var reg;
       if (arguments.length > 0) {
           if (arguments.length == 1 && typeof (args) == "object") {
               for (var key in args) {
                   if (args[key] != undefined) {
                        reg = new RegExp("({" + key + "})", "g");
                       result = result.replace(reg, args[key]);
   ...
   

2. format(args)

   String.prototype.format = function(args){
       var this_string = '';
       for (var char_pos = 0; char_pos < this.length; char_pos++) {
           this_string = this_string + this[char_pos];
       for (var key in args) {
           var string_key = '{' + key + '}';
           this_string = this_string.replace(new RegExp(string_key, 'g'), args[key]);
       return this_string;
   };
   

3. format(args)

   String.prototype.format = function(args) {
       var result = this;
       if (arguments.length < 1) {
           return result;
       var data = arguments;      
       if (arguments.length == 1 && typeof (args) == "object") {
           data = args;
       for (var key in data) {
           var value = data[key];
           if (undefined != value) {
               result = result.replace("{" + key + "}", value);
       return result;
   

4. format(args)

   String.prototype.format = function(args) {
     return this.replace(/{([^{}]*)}/g, function (fullMatch, subMatch) {
       var value = args[subMatch];
       return (typeof value === 'string' || typeof value === 'number') ? value : fullMatch;
     });
   };
   

5. format(args)

   String.prototype.format = function (args) {
     var str = this;
     return str.replace(String.prototype.format.regex, function(item) {
       var intVal = parseInt(item.substring(1, item.length - 1));
       var replace;
       if (intVal >= 0) {
         replace = args[intVal];
       } else if (intVal === -1) {
         replace = "{";
   ...
   

6. format(args)

   'use strict';
   String.prototype.format = function (args) {
       var str = this;
       return str.replace(String.prototype.format.regex, function(item) {
           var intVal = parseInt(item.substring(1, item.length - 1));
           var replace;
           if (intVal >= 0) {
               replace = args[intVal];
           } else if (intVal === -1) {
   ...
   

7. format(args)

   String.prototype.format = function (args) {
       'use strict';
       var str = this;
       return str.replace(String.prototype.format.regex, function (item) {
           var intVal = parseInt(item.substring(1, item.length - 1));
           var replace;
           if (intVal >= 0) {
               replace = args[intVal];
           } else if (intVal === -1) {
   ...
   

8. format(args)

   String.prototype.format = function(args) {
       var result = this;
       if (arguments.length < 1) {
           return result;
       var data = arguments; 
       if (arguments.length == 1 && typeof (args) == "object") {
           data = args;
       for ( var key in data) {
           var value = data[key];
           if (undefined != value) {
               result = result.replaceAll("\\{" + key + "\\}", value);
       return result;
   

9. format(args)

   String.prototype.format = function (args) {
     var str = this;
     return str.replace(String.prototype.format.regex, function(item) {
       var intVal = parseInt(item.substring(1, item.length - 1));
       var replace;
       if (intVal >= 0) {
         replace = args[intVal];
       } else if (intVal === -1) {
         replace = "{";
   ...