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in reply to Re: Golf Do-s and Don't-s
in thread Golf Do-s and Don't-s

Is there anything shorter than join'',?

It depends. This:

$"="";"@_"
is one character more than
join"",@_
but if you have to do two joins,
$"="";"@a";"@b"
is shorter than
join"","@a";join"","@b"