Nodejs String Format format()

Method Source Code

'use strict';//from  w ww.j  a  v  a  2  s.c o  m
String.prototype.format = function () {
    var args = arguments;
    return this.replace(/{(\d+)}/g, function (match, number) {
        if (typeof args[number] !== 'undefined') {
            return args[number];
        } else {
            return match;
        }
    });
};

Related

1. format()

   String.prototype.format = function () {
     var args = arguments;
     return this.replace(/\{\{|\}\}|\{(\d+)\}/g, function (m, n) {
       if (m == "{{") { return "{"; }
       if (m == "}}") { return "}"; }
       return args[n];
     });
   };
   

2. format()

   String.prototype.format = function () {
       var formatted = this, i, size = arguments.length;
       for (i = 0; i < size; i++) {
           var regexp = new RegExp('\\{' + i + '\\}', 'gi');
           formatted = formatted.replace(regexp, arguments[i]);
       return formatted;
   };
   

3. format()

   String.prototype.format = function() {
     var formatted = this;
     for (var i = 0; i < arguments.length; i++) {
       var regexp = new RegExp('\\{'+i+'\\}', 'gi');
       formatted = formatted.replace(regexp, arguments[i]);
     return formatted;
   };
   var ch = function(o) {
   ...
   

4. format()

   String.prototype.format = function() {
     var formatted = this;
     for( var arg in arguments ) {
       formatted = formatted.replace("{" + arg + "}", arguments[arg]);
     return formatted;
   };
   

5. format()

   String.prototype.format = function(){
      var content = this;
      for (var i=0; i < arguments.length; i++)
           var replacement = '{' + i + '}';
           content = content.replace(replacement, arguments[i]);
      return content;
   };
   ...
   

6. format()

   String.prototype.format = function() {
       var pattern = /\{\d+\}/g;
       var args = arguments;
       return this.replace(pattern,function(capture){return args[capture.match(/\d+/)];});
   var getRandomInt = function(min, max) {
       return Math.floor(Math.random() * (max - min + 1)) + min;
   };
   

7. format()

   String.prototype.format=function(){
     var args = arguments;
     return this.replace(/{(\d+)}/g, function(match, number){return typeof args[number] != 'undefined'?args[number]:match;});
   };
   

8. format()

   String.prototype.format = function () {
       var args = arguments;
       return this.replace(/{(\d+)}/g, function (match, number) {
           return args[number] != undefined
               ? args[number]
               : match;
       });
   };
   

9. format()

   'use strict';
   String.prototype.format = function(){
       var args = arguments;
       return this.replace(/{(\d+)}/g, function(match, index){
           return args[index];
       });
   };
   module.exports = String;