what is the purpose of the `qw` keyword in the following statement: my @array = qw/apple orange grape/;

Which is not true of labels?

An atom cannot be

The bless operator

What are bare words?

What does the following compound assignment operator signify?      | =

What is STDERR?

Which are types of Perl variables?

A compound statement usually contains?

The Perl interpreter keeps track of the length of a _____ as well as its contents?

What is the result of the code? $pvt = Calculation(6,4,8,12); print('Result = $pvt\n'); sub Calculation{ my ($fstVar, $secndVar) = @_; my $square = sub{ return($_[0] ** 2); }; return(&$square($fstVar) + &$square($secndVar)); };