Easings
Easing functions specify the speed at which an animation progresses at different points within the animation.
Category: Utilities
Widget Factory
Create stateful jQuery plugins using the same abstraction as all jQuery UI widgets.
Widget Plugin Bridge
Part of the jQuery Widget Factory is the jQuery.widget.bridge() method. This acts as the middleman between the object created by $.widget() and the jQuery API.
Mouse Interaction
The base interaction layer.
.position()
Position an element relative to another.