Types of References I

Scalar references

The reference operator is the backslash \. In scalar context, it creates a single reference that refers to another value. In list context, it creates a list of references. To take a reference to $name, we can do this:

my $name = 'Larry';
my $name_ref = \$name;

We must dereference a reference to evaluate the value to which it refers. Dereferencing requires us to add an extra sigil for each level of dereferencing: