It's the equivalent of "use feature qw(switch say state)". "use feature" allows "new syntactic constructs, or new semantic meanings to older constructs" to be e

It's the equivalent of "use feature qw(switch say state)". "use feature" allows "new syntactic constructs, or new semantic meanings to older constructs" to be enabled in the current scope. http://search.cpan.org/~flora/perl/lib/feature.pm http://search.cpan.org/~flora/perl/lib/feature.pm