perl - How can I fetch a hash ref from array of hashes by one of its values? -

i have array of hashes, each hash containing same keys values unique. on basis of particular value, need store hash ref.

see below illustration understand properly:

my @aoaoh = (             { => 1, b => 2 },             { => 3, b => 4 },             { => 101, b => 102 },             { => 103, b => 104 },     );

now check if hash key a contains value 101. if yes need store whole hash ref.

how that?

my $key = "a"; ($ref) = grep { $_->{$key} == 101 } @aoaoh;

or using list::util's first():

use list::util 'first'; $ref = first { $_->{$key} == 101 } @aoaoh;

arrays perl hash reference perl-data-structures

Five