What real purpose does $.noop() serve in jQuery 1.4?

Question

Pouring over the release notes regarding jQuery 1.4, I came acrosss $.noop() which is:

Description: An empty function. (added in 1.4)

Answer 1

If a function requires you pass a function as an argument maybe? It's shorter to say do_something($.noop) than do_something(function(){}).

Although not by much...

...6 characters...

...yeah, that feature looks quite useless actually.