I just started learning Perl for several days.I sow some codes below, what is the type of $data, is it array or a hash? There are so many nests. Thanks. 
my $data = { 
    'a10' => {
            b => 1,
            a => 2,
    },  
    'bbb' => {
            x => 3,
    },  
    'a2' => {
            z => 4,
    }   
};

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In reply to what is the variable type of $data = { by jimyokl

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