June 2002
Beginner
759 pages
80h 42m
English
ref
ref $var
Returns a string indicating the type of the object
referenced if var is a reference;
returns the null string otherwise. Built-in types include:
REF SCALAR ARRAY HASH CODE GLOB
If the referenced object has been blessed into a package,
that package name is returned instead. You can think of ref as a “typeof” operator.