Nodejs String Format format(args)

Method Source Code

// FUNCION: {String}.format() --> similar to C#.NET
// Sample usage://from  w ww . jav a2s . c om
// var haha = "She {1} {0}{2} by the {0}{3}. {-1}^_^{-2}";
// str = haha.format(["sea", "sells", "shells", "shore"]);
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 = "{";
      } else if (intVal === -2) {
         replace = "}";
      } else {
         replace = "";
      }
      return replace;
   });
};
String.prototype.format.regex = new RegExp("{-?[0-9]+}", "g");
// end of String.format()

Related

1. 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 = "{";
   ...
   

2. format(args)

   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]); 
       } else { 
   ...
   

3. 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) {
   ...
   

4. 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) {
   ...
   

5. 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;
   

6. format(args)

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

7. format(args)

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

8. format(args)

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

9. format(args)

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