Re: How can I send a "transposed slice" of an array of hashes and by extension an array of arrays, or hash of hashes to a subroutine

I'm not sure what you're after exactly. You can't send a single key and value from a hash as a reference, as nothing like that exists to be referred to: the hash has two keys, to have a hash with only one of the keys, you need to create a new one.

If you feel the for loop is too verbose, you can switch to map:

List_Subscriptions(map $_->{Sub_Name}, @Subscription);
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(It doesn't send a reference, but a list, you need to wrap the map into square brackets to create an anonymous array to refer to).

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

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