Nodejs String Format format()

Method Source Code

String.prototype.format = function () {
    var args = arguments;
    this.unkeyed_index = 0;/*from ww  w.j a va 2  s.com*/
    return this.replace(/\{(\w*)\}/g, function (match, key) {
        if (key === '') {
            key = this.unkeyed_index;
            this.unkeyed_index++
        }
        if (key == +key) {
            return args[key] !== 'undefined'
                ? args[key]
                : match;
        } else {
            for (var i = 0; i < args.length; i++) {
                if (typeof args[i] === 'object' && typeof args[i][key] !== 'undefined') {
                    return args[i][key];
                }
            }
            return match;
        }
    }.bind(this));
};

Related

1. format()

   function generateUUID(){
       var d = new Date().getTime();
       if(window.performance && typeof window.performance.now === "function"){
           d += performance.now(); 
       var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
           var r = (d + Math.random()*16)%16 | 0;
           d = Math.floor(d/16);
           return (c=='x' ? r : (r&0x3|0x8)).toString(16);
   ...
   

2. 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;
   };
   function lz(n){
   ...
   

3. format()

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

4. format()

   String.prototype.format = function () {
       var args = [].slice.call(arguments);
       return this.replace(/(\{\d+\})/g, function (a) {
           return args[+(a.substr(1, a.length - 2)) || 0];
       });
   };
   var self = {
       clone: function clone(a) {
           return JSON.parse(JSON.stringify(a));
   ...
   

5. format()

   String.prototype.format = function() {
     var args = arguments;
     return this.replace(/\$\{([A-Za-z0-9_]+)\}/g, function(base, element, position) {
       for (var i = 0; i < args.length; i++) {
         var arg = args[i];
         if (arg && typeof(arg) == "object") {
           try {
             if (arg[element] !== undefined)
               return arg[element];
   ...
   

6. format()

   'use strict';
   String.prototype.format = function () {
       var str = this;
       for (var i = 0; i < arguments.length; i++) {
           var regEx = new RegExp("\\{" + (i) + "\\}", "gm");
           str = str.replace(regEx, arguments[i]);
       return str;
   

7. format()

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

8. format()

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

9. format()

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