NAME List::AllUtils::Null - List subroutines that treat undef as contagious unknown, like null in SQL VERSION This document describes version 0.004 of List::AllUtils::Null (from Perl distribution List-AllUtils-Null), released on 2021-07-05. SYNOPSIS use List::AllUtils::Null qw( max maxstr min minstr sum ); say max(1,2,3,4,5); # => 5 say max(1,2,undef,4,5); # => undef say min(1,2,3,4,5); # => 1 say min(1,2,undef,4,5); # => undef say sum(1,2,3,4,5); # => 15 say sum(1,2,undef,4,5); # => undef DESCRIPTION Keywords: monadic zero. FUNCTIONS max maxstr min minstr sum HOMEPAGE Please visit the project's homepage at . SOURCE Source repository is at . BUGS Please report any bugs or feature requests on the bugtracker website When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature. SEE ALSO Your favorite SQL reference. List::Util and friends (List::SomeUtils, List::UtilsBy, List::MoreUtils, List::AllUtils). List::AllUtils::ContainsNull AUTHOR perlancar COPYRIGHT AND LICENSE This software is copyright (c) 2021 by perlancar@cpan.org. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.