CODEWITHSUNDEEP
perlhash
Futuregeek
Futuregeek

Reputation: 1980

Find value from nested hash

I have a hash like :

$VAR1 = {
          'x' => {
                          'Mathematics' => 82,
                          'Art' => 99,
                          'Literature' => 88
                        },
          'y' => {
                         'Mathematics' => 97,
                         'Literature' => 67
                       }
         .......
        };

I need to get x, y etc in an array(currently i don't know the values for x and y)

for eg 

@arr = (x,y, z..);

Upvotes: 2

Views: 86

Answers (1)

choroba
choroba

Reputation: 241858

Just use keys. If the hash is in fact a hash reference, dereference it first:

my @keys1 = keys %hash;
my @keys2 = keys %$hash_ref;

Upvotes: 3

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