Re: Hash of hash: testing for existence of higher level key (only)

I thought of ... but I don't think that would work ...

But what happened when you tried it?

>perl -wMstrict -le
"my $hash = {
   'A' => {
     'B5' => {
       'C' => 123,
       'D' => 103,
       },
     'B2' => {
       'C' => 101,
       },
     },
   };
 ;;
 if (exists $hash->{'A'}{'B2'}) {
   for my $k (keys %{ $hash->{'A'}{'B2'} }) {
     print qq{'$k' -> $hash->{'A'}{'B2'}{$k}};
     }
   }
"
'C' -> 101
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Re^2: Hash of hash: testing for existence of higher level key (only) by zuma53 (Beadle) on Jun 22, 2012 at 05:23 UTC
I tried that, but it never got to the loop. I double-checked and there was a hash key/value there. I will revisit this once again. Thanks for the help!	[reply]