Using the jQuery Utility Methods
Adam Freeman · Apress eBooks · 2013
jQuery includes a number of utility methods that perform advanced operations on jQuery objects or which supplement the JavaScript language to provide features that are usually present in programing languages. You may never need any of these methods, but they are used internally by jQuery, and making them publicly available means that you can save time and effort when you come across an odd problem that the jQuery team has already solved. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.