Nodejs Utililty Methods String 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);
...

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){
...

'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;
    });
};

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));
...

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];
...

String.prototype.format = function () {
    var args = arguments;
    this.unkeyed_index = 0;
    return this.replace(/\{(\w*)\}/g, function (match, key) {
        if (key === '') {
            key = this.unkeyed_index;
            this.unkeyed_index++
        if (key == +key) {
...

'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;

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

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

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){
...