Selects the last matched element.
Reduce the set of matched elements to the final one in the set.
Selects all elements that are the last child of their parent.
The number of elements in the jQuery object.
Attach an event handler for all elements which match the current selector, now and in the future.
Load data from the server and place the returned HTML into the matched element.
Select all elements at an index less than index within the matched set.