Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change

Re^2: Hash arrays

by BillKSmith (Priest)
on Dec 26, 2012 at 14:50 UTC ( #1010390=note: print w/replies, xml ) Need Help??

in reply to Re: Hash arrays
in thread Hash arrays

    push @{ $family_hash{$key} }, @values;

I prefer

$family_hash{$key} = [@values];

Replies are listed 'Best First'.
Re^3: Hash arrays
by NetWallah (Abbot) on Dec 26, 2012 at 16:30 UTC
    Yes - that looks cleaner, but it is not the equivalent.

    Your code overwrites the contents of $family_hash{$key} while the OP's appends.
    So, if the $key appears more than once in the input data sequence, all but the last will be clobbered by your code.

                 "By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest."           -Confucius