I also highly recommend using Data::Dumper as mentioned above.

What I find helpful is to use the longhand: 

push @{$hr->{a}}, 'hello';
print "${$hr->{a}}[0]\n";

[download]

I find that this give my eye a better chance to see that some derefencing is going on (I'm old!).

Hang on in there! :-)

In reply to Re: A better understanding of array and hash references by wfsp
in thread A better understanding of array and hash references by jeanluca

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