P16 - Drop every nth element from a list.
Author: Ryan Connelly
Example
> say drop-nth(<a b c d e f g h i j k l m n>.list, 3); a b d e g h j k m n
Source code: P16-topo.pl
use v6; sub drop-nth(@list, $n) { my $count = 1; gather for @list -> $e { take $e if not $count++ %% $n; } } say "{drop-nth(<a b c d e f g h i j k l m n>.list, 3)}";