Re: [Haskell-beginners] Haskell for Imperative Programmers

On 10/07/2018 15:19, Theodore Lief Gannon wrote:

An intuition that really clicked for me is that in Haskell IO code, as in all Haskell code, you are describing a pristine and perfectly inert data structure. It happens to *represent* a set of imperative instructions that the totally impure runtime environment can execute, but that's not your problem!

Just like in Java :) I'm kinda trolling a bit, but if I spend all my dev time inside an IO monad of sorts, I don't find that to be much different than writing Java.

On Tue, Jul 10, 2018, 4:55 AM Olivier Revollat mailto:revollat@gmail.com> wrote:

Thanks !

Le mar. 10 juil. 2018 à 13:14, PY mailto:aquagnu@gmail.com> a écrit :

May be something like this?

*Free monads* ("applicative" style/interpreting trees) and Effects:

https://markkarpov.com/post/free-monad-considered-harmful.html https://mmhaskell.com/blog/2017/11/20/eff-to-the-rescue

*Arrows* (something like "flow"-style): https://www.haskell.org/arrows/ http://tuttlem.github.io/2014/07/26/practical-arrow-usage.html

10.07.2018 12:22, Olivier Revollat wrote:

...

Hi, I've been using imperative languages for 20 years now :)

I'm a beginner in haskell and I love the paradigm shift you feel when you come from imperative programming. I found interesting articles like : https://wiki.haskell.org/Haskell_IO_for_Imperative_Programmers

Do you have any other ressources like that ? I'm not looking for how to use haskell in imperative style (e.g. with "do" notation, ...) no no ! I'm looking articles who explain how NOT TO USE imperative style with haskell, and help thinking the paradigm shift ...

Thanks :)

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