http://d.puremagic.com/issues/show_bug.cgi?id=1511 ------- Comment #2 from braddr at puremagic.com 2007-09-17 23:21 ------- is(T) is true as long as T is a type. typeof() will return the type of any valid expression. In your examples, all the expressions are valid. So, um.. there's no bug here. --