Do you think it is harder to learn than Ocaml/ReasonML though?

I think there is a good free introductory book [1], a welcoming community [2], the language and ecosystem are quite stable nowadays and there's good tooling (now that there's the Spago package manager).

[1] https://leanpub.com/purescript/read [2] https://discourse.purescript.org/

It's definitely harder. I have been doing O'caml for about 20 years now, and we have probably one of the largest Elm apps out there. I looked at Purescript, especially because it also compiles to other languages (C++, BEAM) but the learning curve is a bit steep.

Absolutely.

The 'Pure' is the problem here.

Not only is it nearly as high as Haskell, the PureScript guide hasn't been updated in years and is wildly out of date. You have to go searching for an unofficial rewrite, and those are incomplete as well.

On the other hand, you can pretty much just learn Haskell to learn PureScript. All of the differences fit onto a single small docs page: https://github.com/purescript/documentation/blob/master/lang...

Nope, not the same. You still need to learn how PureScript does things.

Also, these days no one want to learn Haskell just for sake of building UI. Just do it in JavaScript or TypeScript, far far far easier pill to swallow.

Yes I learned Haskell, Elm, and Rust

It is, but the community is pretty awesome and helpful, and anyone who knows Elm and takes the time to read at least one introductory Haskell book should be able to get productive pretty quickly.

Still lost many hours for asking and debugging, if it ever get answered. Companies don't care, business don't care. They care about shipping feature, easy to find developers. Try explaining that to your PM or boss. In the end money talks.

I think using Elm, PureScript, or any technology that has a community orders of magnitude smaller than well established safer alternatives would be a dubious decision. I never advocated bringing either into a professional environment. I simply stated that there is a viable alternative if someone is looking to play in the space.

I've seen people suggest learning Elm as your stepping stone into PureScript, because it does a better job with the training wheels in the beginning.