New here is `Isa`, which accepts an object reference only of some given class, and `Maybe`, which turns another constraint check into one that also accepts `undef`.
#perl
https://metacpan.org/pod/Data::Checks
Paul Evans on Nostr: #TodayIAchieved A new version of my recently-new #CPAN #perl module `Data::Checks`, ...
#TodayIAchieved A new version of my recently-new #CPAN #perl module `Data::Checks`, which adds some parametric constraint checks.
New here is `Isa`, which accepts an object reference only of some given class, and `Maybe`, which turns another constraint check into one that also accepts `undef`.
#perl
https://metacpan.org/pod/Data::Checks
New here is `Isa`, which accepts an object reference only of some given class, and `Maybe`, which turns another constraint check into one that also accepts `undef`.
#perl
https://metacpan.org/pod/Data::Checks