How can I compare arrays in Perl?

Question

I have two arrays, @a and @b. I want to do a compare among the elements of the two arrays.

my @a = qw\"abc def efg ghy klm ghn\";
m         


        

Answer 1

This is one way:

use warnings;
use strict;
my @a = split /,/, "abc,def,efg,ghy,klm,ghn";
my @b = split /,/, "def,ghy,jgk,lom,com,klm";
my $flag = 0;
my %a;
@a{@a} = (1) x @a;
for (@b) {
    if ($a{$_}) {
        $flag = 1;
        last;
    }
}
print "$flag\n";