Wrong button, especially with a missing </code> Scorn pours forth like a raging torrent....

All that is wrong with your code is the parenths. Join takes a list ie: join '', (list); To give list context to your hash slice all we need to do is move the parenths as shown, this runs fine.

my $arr = 1,'a',2,'b'; 
my $hash= {1,'a',2,'b'}; 
print join ':', @$arr1,2; 
print join ':',(@$hash{1,2});
[download]

Note that we do not need parenths for the array at all.

tachyon