Fate of IxMonad

[TheFalseFriend]

Hi @gcanti,

First of all: great library!

I was perusing https://dev.to/gnomff_65/hyper-ts-is-my-cyborg-brain-34kf, and the concept of IxMonad caught my eye. I was looking to play around with these monads using fp-ts and it seems there did exist an implementation in-library (#180) up until relatively recently (here is a reference from 9/5/19).

Upon closer inspection it looks like IxMonad was deprecated and removed in v2. However, I can't find any documentation as to why that module was removed. The only references I could find were;

• here - just mentions IxMonad as a 'removed module', does not elaborate
• here - just mentions IxMonad as 'deprecated', does not elaborate

Further the 'technical discussion that resulted in v2' this doesn't mention IxMonad other than the reference above.

I can see hyper-ts also ripped out its use of fp-ts' IxMonad in favour of its own implementation for the release of fp-ts v2.

So these are my questions:

• what was the fate of IxMonad? Why cull it?
• what was IxMonad depcrecated in favour of?

Thanks in advance!

[anilanar]

Maybe I can necro bump this question @gcanti

[gcanti]

I don't remember the details now but I wasn't satisfied by the encoding of IxMonad in TypeScript

[derrickbeining]

I've been wanting IxMonad et. al. in fp-ts lately. I had to implement them in order to port purescript-react-basic-hooks to TS recently.

[anilanar]

@derrickbeining Funny enough, I did the same.

[derrickbeining]

FYI: there's been some more activity on this front over here #1473

[EricCrosson]

#1473 has been closed (resolved -- separate package published), perhaps it's time to close this issue too?