[Haskell-cafe] Tutorial on JS with Haskell: Fay or GHCJS?

[Nathan Hüsken]

In my opinion haste is somewhere between Fay and ghcjs. It supports more 
than Fay, but in difference to ghcjs some PrimOps are not supported 
(weak pointers for example).

It is a little bit more "direct" than ghcjs, in the sense that it does 
not need such a big rts written in js.

I like haste :).

What I wonder is how the outputs of these 3 compilers compare speed wise.

On 09/04/2013 11:11 AM, Alejandro Serrano Mena wrote:
> I haven't looked at Haste too much, I'll give it a try.
>
> My main problem is that I would like to find a solution that will 
> continue working in years (somehow, that will became "the" solution 
> for generating JS from Haskell code). That's why I see GHCJS (which 
> just includes some patches to mainstream GHC) as the preferred 
> solution, because it seems the most probable to continue working when 
> new versions of GHC appear.
>
>
> 2013/9/4 Niklas Hambüchen <mail at nh2.me <mailto:mail at nh2.me>>
>
>     Hi, I'm also interested in that.
>
>     Have you already evaluated haste?
>
>     It does not seem to have any of your cons, but maybe others.
>
>     What I particularly miss from all solutions is the ability to simply
>     call parts written in Haskell from Javascript, e.g. to write `fib` and
>     then integrate it into an existing Javascript application (they
>     are all
>     more interested in doing the other direction).
>
>     On Wed 04 Sep 2013 17:14:55 JST, Alejandro Serrano Mena wrote:
>     > Hi,
>     > I'm currently writing a tutorial on web applications using
>     Haskell. I
>     > know the pros and cons of each server-side library (Yesod, Snap,
>     > Scotty, Warp, Happstack), but I'm looking for the right choice for
>     > client-side programming that converts Haskell to JavaScript. I've
>     > finally come to Fay vs. GHCJS, and would like your opinion on what's
>     > the best to tackle. My current list of pros and cons is:
>     >
>     > Fay
>     > ===
>     > Pros:
>     > - Does not need GHC 7.8
>     > - Easy FFI with JS
>     > - Has libraries for integration with Yesod and Snap
>     >
>     > Cons:
>     > - Only supports a subset of GHC (in particular, no type classes)
>     >
>     >
>     > GHCJS
>     > ======
>     > Pros:
>     > - Supports full GHC
>     > - Easy FFI with JS
>     > - Highly opinionated point: will stay longer than Fay (but it's very
>     > important for not having a tutorial that is old in few months)
>     >
>     > Cons:
>     > - Needs GHC 7.8 (but provides a Vagrant image)
>     >
>     >
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>
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