HTML::FormFu::Constraint::Required - Required Field Constraint
States that a value must be submitted. The empty string is not allowed.
Is a sub-class of, and inherits methods from HTML::FormFu::Constraint
Based on the original source code of HTML::Widget::Constraint::All, by Sebastian Riedel,
This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself.
Carl Franks <firstname.lastname@example.org>
This software is copyright (c) 2018 by Carl Franks.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.