in reply to Re^4: Golf: Factorials
in thread Golf: Factorials

yes a bit from the original post: in fact:
perl -E "say$x*=$_ for++$x..3,0,1,-1" 1 2 6 0 # must be 1 0 # too 0 # must be undef or Error

There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.