in reply to Output only certain fields from a hash using the Data::Dumper

In recent Perl, you can use the new hash slice syntax: 
print Dumper { %hash {qw{ a b c }} };

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In older Perls, you have to use a loop (or disguise it as map): 

print Dumper { map { $_, $hash{$_} } qw( a b c ) };

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Re^2: Output only certain fields from a hash using the Data::Dumper
by MrSnrub (Beadle) on Jan 07, 2015 at 16:16 UTC
    That "older Perls" method worked well for basic hashes. But what if I have a hash of arrays of hashes? Can I filter out the keys in the inner hash?
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