Re: Strange behaviour reading from hashref stored in array

in reply to Strange behaviour reading from hashref stored in array

As moritz says this is auto vivification. There is a way you can test if a key exists without the side effect of creating it

my @a = ( {}, {}, {} );
print $a[3]{foo} if exists $a[3] and exists $a[3]{foo};
# or if you only want to ensure you don't expand @a
# print $a[3]{foo} if exists $a[3];

print scalar @a . "\n";
[download]

not the most attractive looking code though

Cheers,
R.

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