I agree to the most of your writing. Just a couple of notes.
> > my Array[Str] $a = ["a", "b", "c"];
> > my Str @a = ["a", "b", "c"];
> >
> First, there's co/contra variance of sub-typing. The first paragraph of
> wikipedia page is
> https://en.wikipedia.org/wiki/Covariance_and_contravariance_(
Hi Vadim,
This is for you and anyone else interested in a little bit about tricky
aspects of sub-types, of P6, of my perspective on learning in response to
WTF? moments, and P6 strengths and weaknesses in relation to the foregoing.
Vadim wrote:
> my Array[Str] $a = ["a", "b", "c"];
> my Str @a =
