Size in Perl

In Perl, to get the size of an array, we can use either the scalar operator or the $#array variable. Here are some examples:

Using the scalar operator:

my @array = (1,2,3,4,5);

my $size = scalar(@array);

print "Size of array: $size\n";

Using the $#array variable:

my @array = (1,2,3,4,5);

my $size = $#array + 1;

print "Size of array: $size\n";

Note that $#array returns the index of the last element in the array, so we need to add 1 to get the size of the array.