either
me（either 和 me too的区别）？
大家好。为了回答上述关于我和任一方的差异的问题，高笑在网上收集了相关信息。让我们与你分享并了解它。[详细]
2023-08-09 06:47 分类：问答Can I ask an Either whether it is Left (or Right)?
I know I can usually just pattern match, but sometimes I would find these functions useful: isLeft= either (const True) (const False)[详细]
2023-03-31 08:09 分类：问答Trying to implement Data.Either
To help me learn Applicative Functors and Functors I thought it would be good fun to see how Either is implemented with the typeclasses Functor and Applicative. Obviously I could just go ahead and rea[详细]
2023-03-29 01:16 分类：问答Best way to turn a Lists of Eithers into an Either of Lists?
I have some code like the below, where I have a list of Eithers, and I want to turn it into an Either of Lists ... in particular (in this case), if there are any Lefts in the list, then I return a Lef[详细]
2023-03-16 01:24 分类：问答Using 'Either' in Haskell
I have two values, t1 and t2, of type Either String Type. The Left-value is used for error handling. These values are used in a function which returns Either String Type.[详细]
2023-03-11 06:44 分类：问答Scala - Define type for Either for compactness or write it explicitly for readability?
In Scala, I can have: trait Api { def someApiCall: Either[Failure, GoodResult]; } or object SomeObject { type SomeResult = Eit开发者_运维知识库her[Failure, GoodResult][详细]
2023-02-21 01:13 分类：问答Understanding how Either is an instance of Functor
In my free time I\'m learning Haskell, so this is a beginner question. In my readings I came across an example illustrating how Either a is made an instance of Functor:[详细]
2023-02-15 00:30 分类：问答Is there no standard (Either a) monad instance?
I was under the impression that there was an instance for Either a somewhere, but I can\'t seem to find it. I have tried importing Control.Monad, Control.Monad.Instances and Data.Either as shown[详细]
2023-02-13 02:51 分类：问答Why this Either-monad code does not type check?
instance Monad (Either a) where return = Left fail = Right Left x >>= f = f x Right x >>= _ = Right x[详细]
2022-12-25 15:51 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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