# the prefix:<|> operator (called "slip") can be used to interpolate arrays into a list: sub cat-arrays(@a, @b) { |@a, |@b } my @a1 = (1,2,3); my @a2 = (2,3,4); cat-arrays(@a1,@a2).join(", ").say;
1, 2, 3, 2, 3, 4