Hello. I'm trying to write my first comprehension ...

# arrow

[melatonina]

Hello. I'm trying to write my first comprehension like this:

Either.monad<Exception>().fx {

}

but the IDE says there is no fx. If I go to the definition of Either.monad(), I see that it returns a
EitherMonad<L>, which has a definition for fx. What's happening? That is an attempt to adapt the code from your comprehension tutorial. If, instead, I'm supposed to use

Either.monad<Any>().binding {

}

then the problem is that I don't thave any binding method around.

[aballano]

I believe you should be able to simply do Either.fx { ... } although i cannot check right now

[melatonina]

Thanks, Alberto. Yes, fx is an extension function on Either.Companion.

[melatonina]

Thanks, Simon. This kind of answers helps building a deeper understanding of Arrow implementation details, while we are learning bits and pieces to integrate it in our projects.

[simon.vergauwen]

Always happy to help! 🙂