Engineering JavaScript

Engineering JavaScript Dr Jim Purbrick Async 10th March 2011

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ModulemyOrg = (function(myOrg) { var myApp = myOrg.myApp = myOrg.myApp || {}; function myPrivateFunction() { // Do my thing. } myApp.myPublicFunction = function() { return myPrivateFunction(); } return myOrg;}(myOrg || {}));

myOrg = (function(myOrg) { Class var myApp = myOrg.myApp = myOrg.myApp || {}, myClass = myOrg.myApp.myClass = myOrg.myApp.myClass || {}; myClass.create = function() { var that = {}; myPrivateMethod() { } that.myPublicMethod = function() { myPrivateMethod(); }; return that; }; return myOrg;}(myOrg || {}));

InheritancemyOrg = (function(myOrg) { var myApp = myOrg.myApp = myOrg.myApp || {}, mySub = myOrg.myApp.mySub = myOrg.myApp.mySub || {}; mySub.create = function() { var that = myApp.myClass.create(), myClassMyPublicMethod = that.myPublicMethod; that.myPublicMethod = function() { // Do something. return myClassMyPublicMethod(); }; return that; }; return myOrg;}(myOrg || {}));

Dependency InjectionmyOrg = (function(myOrg) { var myApp = myOrg.myApp = myOrg.myApp || {}, mySub = myOrg.myApp.mySub = myOrg.myApp.mySub || {}; mySub.create = function(params) { var that = params.constructor(), myClassMyPublicMethod = that.myPublicMethod, $ = params.jQuery; that.myPublicMethod = function() { return myClassMyPublicMethod(); }; return that; }; return myOrg;}(myOrg || {}));

Production<script type="text/javascript">$(window).load(function() { var params, mySubInstance; params = { constructor: myOrg.myClass.create, jQuery: jQuery }; mySubInstance = myOrg.myApp.mySub.create(params); // Do something with mySubClassInstance.};</script>

TestJsHamcrest.Integration.QUnit();JsMockito.Integration.QUnit();test(mySubClass calls super class constructor, function () { var params, mySubInstance; params = { constructor: mockFunction(), jQuery: mockFunction() }; mySubInstance = myOrg.myApp.mySub.create(params); verify(params.constructor, once())();});

More?1. http://www.adequatelygood.com/2010/3/ JavaScript-Module-Pattern-In-Depth2. http://www.crockford.com/3. http://oreilly.com/catalog/97805965177484. http://docs.jquery.com/Qunit5. http://jsmockito.org/

Thank You!http://jimpurbrick.comhttp://18dex.com

Engineering JavaScript

by Jim Purbrick on Mar 11, 2011

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Engineering JavaScript — Presentation Transcript