How to Remove Specific Item from a Set in Perl

How to Remove Specific Item from a Set in Perl ?

To remove a specific item from a set in Perl, you can use the delete function to delete the item from the set.

In this example,

We create a set named %number_set using a hash in Perl, which contains integer values 1, 2, 3, 4, and 5.
We use the delete function with %number_set and the item key 3 to remove the item from the set.
Finally, we print the modified set %number_set to see the removed item.

%number_set = (1 => 1, 2 => 1, 3 => 1, 4 => 1, 5 => 1);
delete $number_set{3};
print "@{[keys %number_set]}\n";

1 2 4 5

In this example,

We create a set named %string_set using a hash in Perl, which contains string values 'apple', 'banana', 'cherry', 'date', and 'grape'.
We use the delete function with %string_set and the item key 'cherry' to remove the item from the set.
Finally, we print the modified set %string_set to see the removed item.

%string_set = ('apple' => 1, 'banana' => 1, 'cherry' => 1, 'date' => 1, 'grape' => 1);
delete $string_set{'cherry'};
print "@{[keys %string_set]}\n";

apple banana date grape

In this tutorial, we learned How to Remove Specific Item from a Set in Perl language with well detailed examples.