6 ms·

PureScript already has the Haskell -> Javascript niche covered: https://en.wikipedia.org/wiki/PureScript https://en.wikipedia.org/wiki/PureScript

by cyorir 7y ago

ghostwriter 7y ago
Why using a separate language if GHCJS is already good enough?
- cyorir 7y ago
  According to the creator of PureScript: "Solutions at the time included various attempts to compile Haskell to JavaScript while preserving its semantics (Fay, Haste, GHCJS), but I was interested to see how successful I could be by approaching the problem from the other side - attempting to keep the semantics of JavaScript, while enjoying the syntax and type system of a language like Haskell." https://leanpub.com/purescript/read#leanpub-auto-about-the-author https://leanpub.com/purescript/read#leanpub-auto-about-the-a...
  - ghostwriter 7y ago
    It's a good reason for the author of the language, and for anyone who's interested in designing programming languages. However, I often wonder why people in the industry promote it as a great choice for developers who are looking for a "Haskell for frontend", instead of recommending GHCJS. I do understand why Elm is recommended instead of Haskell for simplicity reasons, but PureScript is neither simpler nor (presumably, if I'm not missing something) conceptually more valuable (i.e. bringing refreshingly new ideas) than GHC Haskell.
    - wwright 7y ago
      Purescript does have algebraic effects and row polymorphism generally, which Haskell does not AFAIK (I don’t do as much Haskell as I would like so I may be wrong.)
      - ghostwriter 7y ago
        Algebraic effects are not part of the language implementation, but there are libraries like fused-effects[1] that implement them. Row polymorphism has been proposed a few years ago [2], but as with any community effort, the timeline and possibility of the actual implementation depends on the amount of attention put into it instead of some other (probably important, too) work. [1]: https://github.com/fused-effects/fused-effects https://github.com/fused-effects/fused-effects [2]: https://github.com/ghc-proposals/ghc-proposals/pull/180 https://github.com/ghc-proposals/ghc-proposals/pull/180
- ferzul 7y ago
  ghcjs is kinda slow on my phone.

PureScript already has the Haskell -> Javascript niche covered: https://en.wikipedia.org/wiki/PureScript https://en.wikipedia.org/wiki/PureScript

by cyorir 7y ago

PureScript already has the Haskell -> Javascript niche covered: https://en.wikipedia.org/wiki/PureScript https://en.wikipedia.org/wiki/PureScript

ghostwriter 7y ago

Why using a separate language if GHCJS is already good enough?

cyorir 7y ago
According to the creator of PureScript: "Solutions at the time included various attempts to compile Haskell to JavaScript while preserving its semantics (Fay, Haste, GHCJS), but I was interested to see how successful I could be by approaching the problem from the other side - attempting to keep the semantics of JavaScript, while enjoying the syntax and type system of a language like Haskell." https://leanpub.com/purescript/read#leanpub-auto-about-the-author https://leanpub.com/purescript/read#leanpub-auto-about-the-a...
- ghostwriter 7y ago
  It's a good reason for the author of the language, and for anyone who's interested in designing programming languages. However, I often wonder why people in the industry promote it as a great choice for developers who are looking for a "Haskell for frontend", instead of recommending GHCJS. I do understand why Elm is recommended instead of Haskell for simplicity reasons, but PureScript is neither simpler nor (presumably, if I'm not missing something) conceptually more valuable (i.e. bringing refreshingly new ideas) than GHC Haskell.
  - wwright 7y ago
    Purescript does have algebraic effects and row polymorphism generally, which Haskell does not AFAIK (I don’t do as much Haskell as I would like so I may be wrong.)
    - ghostwriter 7y ago
      Algebraic effects are not part of the language implementation, but there are libraries like fused-effects[1] that implement them. Row polymorphism has been proposed a few years ago [2], but as with any community effort, the timeline and possibility of the actual implementation depends on the amount of attention put into it instead of some other (probably important, too) work. [1]: https://github.com/fused-effects/fused-effects https://github.com/fused-effects/fused-effects [2]: https://github.com/ghc-proposals/ghc-proposals/pull/180 https://github.com/ghc-proposals/ghc-proposals/pull/180
ferzul 7y ago
ghcjs is kinda slow on my phone.