Something about chain and composition

[yurkimus]

Hello,

Is there a name for such operation presented in a chain method?

chain f g x <=> f (g x) x

If I need a reversed chain, what can I use with ramda and does that composition also have a name?

reversed_chain f g x <=> f x (g x)

[adispring]

ap

[yurkimus]

Yes, that's what I looked for, thanks.

There is a comment in a REPL: R.ap can also be used as S combinator.

Does the chain method has it's related combinator or it's more close to monadic operations?

[adispring]

I think R.chain can just be consider as a monadic operation(bind in Haskell).
R.ap can be consider as an Applicative functor operation, as Function be consider as an Applicative functor. Also, R.ap can be consider as a S combinator.

[CrossEye]

Always interesting reading on this subject:

https://gist.github.com/Avaq/1f0636ec5c8d6aed2e45