Option <None, Some>

[gumdum]

I'm following Reso Coder's DDD example. On course 4 at 23:32 he goes into explaining wrapping Either<> with Option<None, Some>. It's a check that returns none if nothing, or true if something. This is a way to check if a state is active or not in this example. Since dartz isn't null safety, I'm using your helpful library.
https://pub.dev/documentation/dartz/latest/dartz/Option-class.html is the option class.

Would it be possible getting this feature added?

update: After requesting this, with a little more research I found: oxidized. It's a null safe API that has a few handy features, to include Option: https://pub.flutter-io.cn/documentation/oxidized/latest/oxidized/Option-class.html It works fine with dfunc

[ookami-kb]

Hi, I used to have Option<T> in dfunc until null-safety landed, but currently it's not that useful anymore. Basically, nullable types already provide the needed functionality, e.g. Either<E, T>? is the same as Option<Either<E, T>> but provided out of the box and with less boilerplate.

Also, dfunc provides some helper extensions to nullable types:

String? s = null;
s?.let(print); // Doesn't print anything
s.maybeWhere((s) => s.isNotEmpty); // null
''.maybeWhere((s) => s.isNotEmpty); // null

s = 'test';
s?.let(print); // Prints 'test'
s.maybeWhere((s) => s.isNotEmpty); // 'test'

Let me know if you have some use case in mind, not covered by that.