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cies

I think these 3 slides really stand out, they show with how little code one can write serious software in Haskell...

1. ACID (acid-compliant persistance on Haskell data types, with indexes)

http://dev.stephendiehl.com/hask/#(27)

2. Pipes (program on streams of data)

http://dev.stephendiehl.com/hask/#(30)

3. Scotty (micro web-framework, a la Sinatra or Flask, on top of the super fast Warp server) http://dev.stephendiehl.com/hask/#(32)

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About your point 3), it's worth noting the "toHtml" call buried in that example.

Haskell is both strongly and statically typed. That type boundary between strings and HTML output is enforced by the compiler, and it automatically (and provably!) prevents a metric crapload of injection attacks.

To bring this into sharper detail, notice that there's the "OverloadedStrings" compiler directive at the top of the file. That means that "hello " and "!" are of type Html, different from String. Strings can only be concatenated with Html after they've been escaped.

For more elaboration, see http://blog.moertel.com/posts/2006-10-18-a-type-based-soluti...

Here's an example that brings together Aeson, Lens, Acid-State and Scotty together in one file. Haskell really does have some great offerings for building very solid and fast web applications.

[1] https://github.com/sdiehl/haskell-warp-rest/blob/master/serv...

That url is 404, maybe this is the one?

https://github.com/sdiehl/haskell-warp-rest/blob/master/warp...

Can acid-state be ported to Javascript?

you could try cross-compiling it with Fay or UHC (haskell to javascript compilers)

You'd probably need one of the more heavyweight options (e.g. GHCJS). Fay doesn't understand typeclasses afaik, so it's not really suitable for porting haskell libraries verbatim to the browser.

Maybe but it does not seem very obvious to do so to me.. I guess one is better off with using JS's localStorage from Fay[1] or Sunroof[2].

1. http://fay-lang.org

2. https://github.com/ku-fpg/sunroof-compiler/wiki/Tutorial

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