Nodejs String Format format()

Method Source Code

/**//from ww  w.j  av  a 2  s .  c o  m
 * @returns {string} This string with "%s"s replaced with arguments
 */
String.prototype.format = function() {
   var args = Array.prototype.slice.call(arguments);
   var str = this;
   return str.replace(/%s/g, function(match, index) {
      if (str.charAt(index-1) == "%") {
         return match;
      } else {
         return args.shift();
      }
   });
}

Related

1. format()

   String.prototype.format = function (){
     var values = [].slice.call(arguments, 0, arguments.length),
         idx, 
         length = values.length,
         regex, 
         str = this;
     if(str.match(/\{\d+\}/g).length !== length){
       throw{
         name: 'ArgumentMissMatch',
   ...
   

2. format()

   'use strict';
   String.prototype.format = function () {
       var args = arguments;
       var unkeyed_index = 0;
       return this.replace(/\{{1,2}(\w*)\}{1,2}/g, function (match, key) {
           if (match.indexOf('{{') !== -1) { 
               return match.replace('{{', '{').replace('}}', '}');
           if (key === '') { 
   ...
   

3. format()

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

4. format()

   String.prototype.printf = function (obj) {
     var useArguments = false;
     var _arguments = arguments;
     var i = -1;
     if (typeof _arguments[0] == "string") {
       useArguments = true;
     if (obj instanceof Array || useArguments) {
       return this.replace(/\%s/g,
   ...
   

5. format()

   String.prototype.format = function () {
       'use strict';
       var newString = this;
       function replace(string, search, replacement) {
           return string.replace(new RegExp(search.replace('{', '\\{').replace('}', '\\}'), 'g'), replacement.toString());
       if (arguments[0] !== 'undefined') {
           switch (typeof arguments[0]) {
               case 'object':
   ...
   

6. format()

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

7. format()

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

8. format()

   String.prototype.format = function () {
     var i = 0, args = arguments;
     return this.replace(/{(.*?)}/g, function (match, tagInner) {
       replacement = typeof args[i] != 'undefined' ? args[i++] : '';
       if(tagInner == "") {
           return replacement;
       } else {
           var match = tagInner.match(/^:.(\d+)f$/);
           if(match) {
   ...
   

9. format()

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