Re: proposed addition to perlvar

On Tue, 8 Jun 2010, Chas. Owens wrote:

> How about:
>
> =item $#
>
> C<$#> used to be a variable that could be used to format printed number.
> After a deprecation cycle, its magic was removed in 5.10 and using it
> now triggers a severe warning: C<$# is no longer supported>.
>
> C<$#> is also used as sigil, which, when prepended on the name of an
> array gives the index of the last element in that array.
>
>    my @a            = ("a", "b", "c");
>    my $last_index   = $#a;     # $last_index is 2
>    my $last_element = $a[$#a]; # $last_element is "c"

Do we want to "encourage" this kind of use or prefer to encourage the [-1] 
format?

Matt.