Nodejs String Format format()

Method Source Code

/**//www  .  j a v a  2  s  .c  om
 * Format function that replace placeholders in strings with values
 * Usage : "This is {0} formatted {1}".format("a", "string");
 **/
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;
};

Related

1. 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;
   };
   

2. format()

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

4. format()

   String.prototype.format = function() {
       var args = arguments;
       return this.replace(/\{(\d+)\}/g, function() {
           return args[arguments[1]];
       });
   };
   

5. 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') {
   ...
   

6. format()

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

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 typeof args[number] != 'undefined' ? args[number] : match;
       });
   };
   

9. format()

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