ProgramGuruTo initialize a set in Perl, you can use a hash where the keys represent the elements of the set.
In this example,
%my_set.%my_set with elements by setting the keys of the hash to the desired elements, and the values to a placeholder value (such as 1).%my_set using hash operations such as adding elements, removing elements, and checking for membership.# Initialize a set with elements using a hash
my %my_set = ("apple" => 1, "banana" => 1, "orange" => 1);
# %my_set is now initialized with elements "apple", "banana", and "orange"
# Example usage:
# Add an element to the set
$my_set{"kiwi"} = 1;
# Remove an element from the set
delete $my_set{"banana"};
# Check if an element is present in the set
my $contains_element = exists $my_set{"apple"};
print "Is element 'apple' present in the set: ", $contains_element ? "true" : "false", "\n";Is element 'apple' present in the set: true
In this example,
%empty_set.%empty_set using an empty hash.%empty_set using hash operations such as adding elements, removing elements, and checking for membership.# Initialize an empty set using a hash
my %empty_set = ();
# %empty_set is now initialized as an 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 ? "true" : "false", "\n";Is element 'apple' present in the set: false
In this tutorial, we learned How to Initialize a Set in Perl language with well detailed examples.