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    <p>You can use jQuery UI's Widget factory, which gives you that functionality out-of-the-box:</p> <pre><code>$.widget("vtortola.formcontroller", { _create: function() { // Use `this.element` to initialize the element. // You can also use this.options to get the options object that was passed. }, _destroy: function() { // You can unbind events here to remove references from the DOM, so is'll get // deleted by the garbage collector. }, submit: function() { /* ... */ } }); // Example $('#form').formcontroller({foo: 123}); // Calls `_create()` with the supplied options $('#form').formcontroller('submit'); // Calls the `submit` method </code></pre> <p>The widget factory also gives you options setter/getters, default options, and other cool stuff. See <a href="http://wiki.jqueryui.com/w/page/12138135/Widget%20factory" rel="nofollow">the official docs</a> and the <a href="http://bililite.com/blog/understanding-jquery-ui-widgets-a-tutorial/" rel="nofollow">tutorial at bililite</a> for more details. If you aren't using jQuery UI for other stuff, you can use the <a href="https://github.com/jquery/jquery-ui/blob/master/ui/jquery.ui.widget.js" rel="nofollow">widget factory code</a> as a stand-alone, its not depended on other parts of jQuery UI.</p> <p>If you prefer to it without using jQuery UI's widget factory, you can store the objects directly on <code>.data()</code> (which is also what the widget factory does), no need to keep a collection of them and keep track of that manually. Your code would be something along the lines of:</p> <pre><code>$.fn.formController = function () { var args = arguments; return this.each(function (i, item) { var $this = $(this), _obj; // When calling `$(..)`.formController() with arguments when the object already // exists, it treats the first argument as the method name and passes the rest // as arguments to that method. if (arguments.length &amp;&amp; (_obj = $this.data('FormController'))) { _obj[args[0]].apply(_obj, Array.prototype.slice.call(args, 1)); } else { $this.data('FormController', new FormController(item)); } }); }; </code></pre>
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    1. COThanks. The second example does not work, first because there is a typo in "FromController" :D But also because "arguments[0]" is always "0", it does not contain the 'submit' term. Any idea about why is this happening?
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    2. COOh, `arguments` there refers to the arguments passed to the `each()` function. I updated the code to fix that.
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    3. COUpdated the code again, it was missing a namespace for the widget name
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