Scalar::Util
Implements a few useful scalar-related subroutines. Like List::Util, Scalar::Util is something useful that doesn’t necessarily fit well as a keyword in the Perl core. By default, Scalar::Util does not export any subroutines. As of Perl 5.8, Scalar::Util is shipped with the source kit.
Scalar::Util implements the following methods.
Get Perl in a Nutshell, 2nd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
