Determine if the callbacks have already been called at least once.

Pass each element in the current matched set through a function, producing a new jQuery object containing the return values.

Display or hide the matched elements with a sliding motion. The .slideToggle() method

Selects all next elements matching "next" that are immediately preceded by a sibling "prev". One

Determines whether its argument is a number. The $.isNumeric() method checks whether

Reduce the set of matched elements to those that have a descendant that matches the selector or DOM element. Given

The mouse position relative to the left edge of the document. event

Determine the internal JavaScript [[Class]] of an object. A number of techniques are used to determine

Bind an event handler to the "keydown" JavaScript event, or trigger that event on an element. This

Call all callbacks in a list with the given context and arguments. This method returns the Callbacks