Editing Prototype vs Module pattern performance This edit will create a new revision. Your details (optional) Name Email (won’t be displayed; might be used for Gravatar) URL Test case details Title * Published (uncheck if you want to fiddle around before making the page public) Description (in case you feel further explanation is needed)(Markdown syntax is allowed) Removed iterations in tests, because jsperf already does that for us. And renamed variables to be more meaningful to us humans. And other cosmetic changes. **The most important thing to remember is to use the right tool for the job. All these tests do is reference an object with a complex memory allocation. When you don't need something fancy, you're better off using a regular old object** Are you a spammer? (just answer the question) Preparation code Preparation code HTML (this will be inserted in the <body> of a valid HTML5 document in standards mode) (useful when testing DOM operations or including libraries) Include JavaScript libraries as follows: <script src="//cdn.ext/library.js"></script> Define setup for all tests (variables, functions, arrays or other objects that will be used in the tests) (runs before each clocked test loop, outside of the timed code region) (e.g. define local test variables, reset global variables, clear canvas, etc.) (see FAQ) function TraditionalPrototypeClass() { } TraditionalPrototypeClass.prototype.foo = function() { }; TraditionalPrototypeClass.prototype.bar = function() { }; function ModulePatternClass() { this.foo = function() { }; this.bar = function() { }; } var ModuleCachePatternClass = (function () { function foo() { } function bar() { } return function () { this.foo = foo; this.bar = bar; }; }()); var standardObject = { foo: function(){ }, bar: function(){ } }; Define teardown for all tests (runs after each clocked test loop, outside of the timed code region) (see FAQ) Code snippets to compare Test 1 Title Async (check if this is an asynchronous test) Code var o = new TraditionalPrototypeClass() o.bar; o.foo; Test 2 Title Async (check if this is an asynchronous test) Code var o = new ModulePatternClass() o.bar; o.foo; Test 3 Title Async (check if this is an asynchronous test) Code var o = new ModuleCachePatternClass() o.bar; o.foo; Test 4 Title Async (check if this is an asynchronous test) Code var o = standardObject; o.bar; o.foo;