Run results for: Prototype vs simulated private bench

Test name	Executions per second
Simulated private	340.9 Ops/sec
Prototype	388.4 Ops/sec
Prototype (single call)	390.4 Ops/sec

Simulated private

( function (r, resultsA) {

(function (root, factory) {
  var moduleName = 'TestA';
  if (typeof define === 'function' && define.amd) {
    define(moduleName, factory);
  } else if (typeof exports === 'object') {
    module.exports = factory();
  } else {
    root[moduleName] = factory(moduleName);
  }
}(this, function (moduleName) {
  
  function TestA(element) {
    this.element = element;
    
    var self = this;

    var a = function () {
      return "a"
    };

    var b = function () {
      return "b"
    };

    var c = function () {
      return "c"
    };

    (function initA() {
      console.log(self.element, a(), b(), c());
    }());

  }
  
  return TestA
  
}));

var r = r || 100;
var resultsA = [];
  
for(var i = 0; i < r; i++){
  var d = new Date().getTime();
  resultsA.push(new TestA(d));
}
  
}());

Prototype

( function (r, resultsB) {

(function (root, factory) {
  var moduleName = 'TestB';
  if (typeof define === 'function' && define.amd) {
    define(moduleName, factory);
  } else if (typeof exports === 'object') {
    module.exports = factory();
  } else {
    root[moduleName] = factory(moduleName);
  }
}(this, function (moduleName) {
  
  function TestB(element) {
    this.element = element;
    this.initB();
  }
  
  TestB.prototype.initB = function () {
    console.log(this.element, this.a(), this.b(), this.c());
  };
  
  TestB.prototype.a = function () {
    return "a"
  };

  TestB.prototype.b = function () {
    return "b"
  };

  TestB.prototype.c = function () {
    return "c"
  };

  return TestB
  
}));
  
var r = r || 100;
var resultsB = [];

for(var i = 0; i < r; i++){
  var d = new Date().getTime();
  resultsB.push(new TestB(d));
}

}());

Prototype (single call)

( function (r, resultsC) {
(function (root, factory) {
  var moduleName = 'TestC';
  if (typeof define === 'function' && define.amd) {
    define(moduleName, factory);
  } else if (typeof exports === 'object') {
    module.exports = factory();
  } else {
    root[moduleName] = factory(moduleName);
  }
}(this, function (moduleName) {
  
  function TestC(element) {
    this.element = element;
    this.initC();
  }
  
  TestC.prototype = {
  	constructor: TestC,
    initC: function() {
      console.log(this.element, this.a(), this.b(), this.c());
    },
    a: function() {
        return "a"
    },
    b: function() {
    	return "b"
    },
    c: function() {
     	return "c"
    }
  }
  
  return TestC
  
}));

var r = r || 100;
var resultsC = [];
  
for(var i = 0; i < r; i++){
  var d = new Date().getTime();
  resultsC.push(new TestC(d));
}
  
}());