How to check if a jQuery UI plugin is attached to an element?

Question

How can I check to see if a jQuery UI plugin is attached to an element? For example, if I load up the .sortable widget, how can its presence be determined?

The purpo

Answer 1

All UI widgets have are given the class ui-widget. Typically each widget also adds the widget class to the main element. In this case you should see ui-sortable added to the sortable container.