Delete element from Hash in Perl

You can use 'delete' command for deleting an element from an hash.
It will delete key-value pair.

Please refer to the below script:

#!/usr/bin/perl 

use strict;
use warnings;
use Data::Dumper;

my %hash = ( a => 10, b => 20, c => 30, d => 40);

print "\n Before Deleting : " . Dumper(\%hash);

delete $hash{a};

print "\n After Deleting : " . Dumper(\%hash);  

Output:

Before Deleting : $VAR1 = {
          'c' => 30,
          'a' => 10,
          'b' => 20,
          'd' => 40
        };

 After Deleting : $VAR1 = {
          'c' => 30,
          'b' => 20,
          'd' => 40
        };