Nodejs String Format format()

Method Source Code

String.prototype.format = function() { 
  s = this;//from w w w  .j  av  a 2  s  .c o m
  if (arguments.length == 1 && arguments[0].constructor == Object) {
    for (var key in arguments[0]) {
      s = s.replace(new RegExp("\\{" + key + "\\}", "g"), arguments[0][key]);
    }
  } else {
    for (var i = 0; i < arguments.length; i++) {
      s = s.replace(new RegExp("\\{" + (i+1) + "\\}", "g"), arguments[i]);
    }
  }
  return s;
};

Related

1. format()

   String.prototype.format = function() {
       var args = arguments;
       return this.replace(/\$\{p(\d)\}/g, (match, id) => {
           return args[id]
       })
   String.prototype.sid = function() {
       return `${this.substring(0, 7)}...`
   

2. format()

   String.prototype.format = function(){
     return this.replace(/(\d)(?=(\d{3})+(?!\d))/g, "$1,");
   };
   

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;
   };
   

4. format()

   String.prototype.format = function() {
       "use strict";
       var e = this.toString();
       if (!arguments.length) {
           return e;
       var t = typeof arguments[0],
           n = "string" == t || "number" == t ? Array.prototype.slice.call(arguments) : arguments[0];
       for (var i in n) {
   ...
   

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;
   };
   function pad(n) {
   ...
   

6. format()

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

7. format()

   'use strict';
   String.prototype.format = function () {
       var formatted = this,
           i;
       for (i = 0; i < arguments.length; i += 1) {
           formatted = formatted.replace("{" + i + "}", arguments[i]);
       return formatted;
   };
   ...
   

8. format()

   String.prototype.format = function(){
     var ret = this.toString();
     for (var i = 0; i < arguments.length; i++) {
       ret = ret.replace("%s", arguments[i]);
     return ret;
   };
   

9. format()

   String.prototype.format = function() {
       var newString = this;
       counter = 0;
       while (counter < arguments.length && newString.indexOf('{}') != -1) {
           newString = newString.replace('{}', arguments[counter++]);
       matches = newString.match(/{[0-9]+}/g);
       if (matches != null) {
           for (var i = 0; i < matches.length; i++) {
   ...