3 ms·

$ perl6 -e '!$#foo->_%[]' ===SORRY!=== Error while compiling -e Unsupported use of $#foo variable; in Perl 6 please use @foo.end at -e:1 ------> !$#foo⏏->_

$ perl6 -e '!$#foo->_%[]' ===SORRY!=== Error while compiling -e Unsupported use of $#foo variable; in Perl 6 please use @foo.end at -e:1 ------> !$#foo⏏->_%[]