print scalar ('a','b','c','d'); # prints 'd'

my @array = ('a','b','c','d');
print scalar @array;            # prints '4'

##</code><code>##

my @array1 = ('a','b');
print scalar ('x','y',@array1);

##</code><code>##

print scalar ('a','b','c');
print scalar qw(a b c);