Question

Is there any shorthand for this?

(function($) {
    $.fn.DoStuff= function() {
     // do stuff        
    };
})(jQuery);

This will be placed in separate file.

And than to be called like that from another file from inside $(document).ready( function(){});:

$('element').DoStuff();

?

Answer 1

you could write a jQuery plugin, e.g.

$.fn.DoStuff = function () {
         this === $('element');
         ...
    };

here’s working example: http://jsfiddle.net/xW3ZD/