Talk:Perl Programming/Variables

should the use of the "my" keyword be at least mentioned on this page? i'm still new to perl and i was just confused by the errors i got about global symbols when trying out the code on this page.

Using the "shift" variable in the subroutine at the end of this page without mentioning it previously in the instructional is confusing.

Make it so...

This is unclear on what the datatype of the key of hashes is. Are they always strings?