In Perl, you can create an empty set using hash references or by using the Set::Object module.
In this example,
%empty_set
to represent an empty set in Perl.# Create an empty set using hash reference
my %empty_set = ();
# Example usage:
# Add elements to the set
$empty_set{'apple'} = 1;
# Remove elements from the set
delete $empty_set{'apple'};
# Check if an element is present in the set
my $contains_element = exists $empty_set{'apple'};
print "Is element 'apple' present in the set: $contains_element\n";
Is element 'apple' present in the set:
In this example,
# Example of using Set::Object to create an empty set
use Set::Object;
# Create an empty set using Set::Object
my $empty_set = Set::Object->new();
# Example usage:
# Add elements to the set
$empty_set->insert('apple');
# Remove elements from the set
$empty_set->remove('apple');
# Check if an element is present in the set
my $contains_element = $empty_set->contains('apple');
print "Is element 'apple' present in the set: $contains_element\n";
Is element 'apple' present in the set: 0
In this tutorial, we learned How to create an Empty Set in Perl language with well detailed examples.