Comments (3)
Btw, there's a better way to use MaybeApply
than to mash it into Obj
. Here's a snippet from a few months ago that illustrates how you can compositionally combine MaybeApply
with an arbitrary Apply
functor: https://runkit.com/masaeedu/maybeapply.
from fantasy-land.
I don't mean to dismiss your request, but Haskell's MaybeApply
will turn any Apply into an Applicative. Maybe you can incorporate the logic into your Obj
.
from fantasy-land.
@nadameu The fact that MaybeApply
will turn any Apply
into an Applicative
is of about the same relevance as saying that Maybe
will turn any semigroup into a monoid. It is nevertheless useful to have Foldable1
, if for no other reason than that threading Just
/Nothing
and the corresponding match
through all your values (and similarly Either
for promoting your Apply
to an Applicative
) is quite inefficient.
from fantasy-land.
Related Issues (20)
- [Question] Type signature for ap HOT 2
- Adding Folktale to implementations.md
- Equivalent for Serial typeclass? HOT 1
- Is really necessary specify "No parts of <...> value should be checked"? HOT 11
- Help understanding use of identity in Traversable laws HOT 2
- Fantasy Land specification version number HOT 1
- Switch to Symbols HOT 2
- Wrong argument in Traversable HOT 4
- Is monet.js compatible? HOT 1
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- What does "and" mean? HOT 2
- Can someone explain me how I should understand Semigroup? HOT 5
- Remove all OOP features HOT 21
- Traversable and Foldable use multiple variables as arguments HOT 12
- Profunctor should require Contravariant HOT 10
- Implementation of `Compose` is confusing HOT 3
- should Chain properties depends on fantasy-land/ap (and possibly .map)? HOT 4
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