Juerd writes:
> Consider:
>
> my $foo of Num where { 0 <= $^n < 10 };
>
> Is the following also valid?
>
> my $foo where { 0 <= $^n < 10 };
I don't see why not. The main place C<where> will be useful is in
multimethods, and I see that as a reasonable shorthand:
multi sub foo(Bar $x, $y where { .data ~~ Bar });
> Or does that have to be like this?
>
> my $foo of Scalar where { 0 <= $^n < 10 };
>
> And can $_ be used instead of $^n?
Of course it can. You know that.
Luke
