How to Access Items in a Set in Perl - Step by Step Examples

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How to Access Items in a Set in Perl ?

Answer

In Perl, you can access items in a set using iteration or specific methods provided by modules like Set::Scalar.

✐ Examples

1 Access Items in a Set using Iteration

In this example,

We create a Set::Scalar named string_set containing strings.
We use a foreach loop to iterate over the elements in the set and print each element.

Perl Program

use Set::Scalar;

my $string_set = Set::Scalar->new(qw(Apple Banana Orange Grapes));

foreach my $item ($string_set->members()) {
    print "$item\n";
}

Output

Apple
Banana
Orange
Grapes

2 Access Items in a Set using Specific Methods

In this example,

We create a Set::Scalar named number_set containing integers.
We use the size method to get the number of elements in the set.
We use the includes method to check if an item exists in the set.

Perl Program

use Set::Scalar;

my $number_set = Set::Scalar->new(1, 2, 3, 4);

print "Number of elements: " . $number_set->size() . "\n";
print "Does set contain 3? " . ($number_set->includes(3) ? 'true' : 'false') . "\n";

Output

Number of elements: 4
Does set contain 3? true

Summary

In this tutorial, we learned How to Access Items in a Set in Perl language with well detailed examples.

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