in reply to Re^2: Sorting HoHoA based on Length of Second Key
in thread Sorting HoHoA based on Length of Second Key

Just change the expression 

( keys %{ $HoHoA{ $_ } } )

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to 
( keys %{ $HoHoA{ $_ } }, '' )

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That way the resulting list will always have at least one element (of length 0).

the lowliest monk

In Section Seekers of Perl Wisdom