I suppose ... but, saying something like
sub hash_join {
my ($hash_ref, $sep1, $sep2) = @_;
my $string = "";
$string .= "${_}${sep}$hash_ref->{$_}${sep2}"
for sort keys %$hash_ref;
$string;
}
my $string = hash_join \%ENV, " = ", "\n";
print $string;
works just as well, as well as having the benefit of being very obvious as to what you're doing. Your join would have to have too many new arguments, I think. But, that's just my opinion on the matter.
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