Nodejs String Format format()

Method Source Code

String.prototype.format = function() {
    var args = arguments;

    return this.replace(/\{(\d+)\}/g, function() {
        return args[arguments[1]];
    });//from w ww .  ja v a  2 s.  c  o  m
};

Related

1. format()

   'use strict';
   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;
   };
   ...
   

2. format()

   String.prototype.format = function() {
       var newStr = this, i = 0;
       while (/%s/.test(newStr)) {
           newStr = newStr.replace("%s", arguments[i++])
       return newStr;
   

3. format()

   String.prototype.format = function () {
       if (arguments.length === 0)
           return this;
       for (var s = this, i = 0; i < arguments.length; i++)
           s = s.replace(new RegExp("\\{" + i + "\\}", "g"), arguments[i]);
       return s;
   };
   

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

6. format()

   String.prototype.format = function () {
     var formatted = this;
     for (var prop in arguments[0]) {
       var regexp = new RegExp('\\{' + prop + '\\}', 'gi');
       formatted = formatted.replace(regexp, arguments[0][prop]);
     return formatted;
   };
   if (typeof String.prototype.trim !== 'function') {
   ...
   

7. 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;
   };
   

8. format()

   String.prototype.format = function() {
       var txt = this, i = arguments.length; while (i--) {
           txt = txt.replace (
               new RegExp('\\{' + i + '\\}', 'gm'), arguments[i]
           );
       return txt;
   };
   

9. format()

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