Run results for: Prototype vs simulated private 4

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Browser: Chrome 69

Operating system: Linux

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Simulated private	177.9 Ops/sec
Prototype	205.3 Ops/sec
Prototype (single call)	204.8 Ops/sec

Tests:

Simulated private
( function () { (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 = 200; for(var i = 0; i < r; i++){ new TestA(new Date().getTime()); } }());
Prototype
( function () { (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 = 200; for(var i = 0; i < r; i++){ new TestB(new Date().getTime()); } }());
Prototype (single call)
( function () { (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 = 200; for(var i = 0; i < r; i++){ new TestC(new Date().getTime()); } }());

Run results for: Prototype vs simulated private 4

Simulated private

Prototype

Prototype (single call)