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POJavascript OOP inheritance not working
 

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    <p>So I am writing something using augment for inheritance and for some reason I can run <code>this.setButtons(type)</code> and <code>console.log(this.buttons)</code> in that method, but when I run my <code>this.getButtons()</code> it comes back as undefined, even though <code>getButtons</code> just returns <code>this.buttons</code>. Any help would be greately appreciated. I will post up all the code I have so far, because maybe I'm not inheriting properly. Thank you in advance.</p> <pre><code>var ContextMixin = function () {}; ContextMixin.prototype = { createElements: function (el, mode, type) { var m; if (mode == 'exact') { $("#" + el).append("&lt;ul id='contextmenu'&gt;"); } else { $(el).each(function () { m = $(this).append("&lt;ul id='contextmenu'&gt;"); }); $('body').append(m); } $("#contextmenu").css({ 'position': 'absolute', top: 13, left: 13 }); var new_buttons = this.getButtons(); $.each(this.buttons['buttons'], function () { m.append("&lt;li id='" + this + "'&gt;" + this + "&lt;/li&gt;"); }); }, attachEvents: function () { functions = this.getFunctions(type); buttons = this.getButtons(); for (index in buttons['buttons']) { addEvent(buttons['buttons'][index], this.functions[index][0], this.functions[index][1]); }; }, setFunctions: function (type) { var callback = { success: function (msg) { this.functions = msg; }, failure: function () { alert('Error getting functions') } }; $.ajax({ type: 'GET', url: 'function_list.php?type=' + type, success: function (msg) { this.functions = msg; } }); }, getFunctions: function () { return this.functions; }, setType: function (value) { this.type = value; }, getType: function () { return this.type; }, setButtons: function (type) { $.ajax({ type: 'GET', url: 'button_list.php?type=' + type, success: function (reply) { this.buttons = reply; } }); }, getButtons: function () { return this.buttons; } } function createMenu(el, type, mode) { this.setButtons(type); this.setFunctions(type); this.createElements(el, mode, type); } augment(createMenu, ContextMixin); function augment(receivingClass, givingClass) { if (arguments[2]) { //Only give certain methods. for (var i = 2, len = arguments.length; i &lt; len; i++) { receivingClass.prototype[arguments[i]] = givingClass.prototype[arguments[i]]; } } else { //Give all methods for (methodName in givingClass.prototype) { if (!receivingClass.prototype[methodName]) { receivingClass.prototype[methodName] = givingClass.prototype[methodName]; } } } } </code></pre>
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