3 ms·Perl6 ftw: my $factorial = sub (Int $x) { $x < 2 ?? 1 !! $x * &?ROUTINE($x - 1); }by kingkongrevenge 18y agoPerl6 ftw: my $factorial = sub (Int $x) { $x < 2 ?? 1 !! $x * &?ROUTINE($x - 1); }