I am using Either implementation for my object because I am expecting an empty Json for one of the parameter in the object. Here is the object: I a ...

I have code like the following: enum Either<L, R> { Left(L), Right(R) } enum SomeMessageType { // ... } fn do_something<T> ...

I need to learn the right way to do pattern matching on Pair types: Desired output: ...

I have a model, that looks like this: And in the companion object of this model, is a constructor, that currently looks like this: As you see, t ...

I'm working on a small app with GoogleSignIn-Auth. and stumbled upon a bug I cannot wrap my head around. It seems like the fold of an Either seems to ...

I'm trying to get the String 'bairro' from this part of code: var infoCepJSON = await viaCepSearchCep.searchInfoByCep(cep: '$_cep') But, its return ...

Is there a way to write this function in a more "monadic" way, instead of resorting to pattern matching on Either? {-# LANGUAGE LambdaCase #-} calcu ...

I try to patternmatch on the Either type but I get an error. Why does the following work with patternMaster (Right a) whereas I get the following ...

I have a list of entities where even one failed validation would yield an error. However, I'd still like to iterate the whole list and collect all the ...

I used arrow.kt library so many times, I really enjoyed the features they gave to extend kotlin. I like how Either<E,T> can represent the succes ...

Say I have code where I want to do the following: Input: a list of strings [String] Operation (checkSat and checkResult) Obtains a boole ...

Consider the following function: validateList :: (a -> Either e a) -> [a] -> Either e [a] validateList validate [] = Right [] validateLi ...

Vavr's Either seems to solve one of my problems were some method does a lot of checks and returns either CalculationError or CalculationResult. Eithe ...

I'm having a kotlin list of objects List<A> I want to filter the list to find valid items and return Either error or valid items If type ...

I currently face the problem of correctly closing resources that never leave their containing Either. The relevant code looks something like this: ...

Considering a sequence of futures each returning Either[Status, Resp]. How would you propagate error status codes through a for comprehension which is ...

I would like to combine a Kotlin extension function on some receiver class Receiver with arrow-kt's either comprehension. In a regular Kotlin extensio ...

I have following piece of code written in Kotlin using vavr. The function performs a chain of operations one by one and if one of them fails, it retur ...

Background I am trying to use comprehensions with Scala with the Either type, namely using a Right. However, despite my efforts, I get an error and n ...

No matter what I do, my variable _authorizedUser is coming back null. I'm demoing biometric authentication for users, once user enters their username ...