[Haskell-cafe] Coding katas/dojos and functional programming introduction

Ernesto Rodriguez neto at netowork.me
Fri Apr 17 07:47:50 UTC 2015

I agree with the approach. I have never done a intro to FP but I think
parser combinators couod be a good start. U begin by showing the high level
interface, I mean learning how to write simple parsers using for instance
Parsec is.easy and one immediately sees the elegance and simplicity that
approach has over say yacc. Then u guide them on implementimg a own basic
parser combinator library which in my opinion is not out of this world with
a good guideance. That way they see that such a powerful tool aint dark
magic with FP.

Anyways good luck with your workshop.


On Apr 16, 2015 7:25 AM, "Raphael Gaschignard" <dasuraga at gmail.com> wrote:

> Is this aimed for FP beginners who already know something like Java? I
> think the thing to do here would be to come up with some tasks that are
> genuinely tedious to write in a Java-esque (or Pascal-like) language, and
> then present how FP solutions are simpler.
>   I'm of the opinion that FP succeeds not just because of the tenants of
> FP, but because most of the languages are terse and have code that is
> "pretty". Showing some quick things involving quick manipulation of tuples
> (basically a bunch of list processing) could show that things don't have to
> be complicated with a bunch of anonymous classes.
>   Anyways, I think the essential thing is to present a problem that they,
> as programmers, have already experienced. The big one being "well these two
> functions are *almost* the same but the inner-part of the function has
> different logic" (basically, looking at things like map). Open up the world
> of possibilities. It's not things that are only possible in Haskell/Scheme
> (after all, all of these languages are turing complete so..), but they're
> so much easier to write in these languages.
> On Thu, Apr 16, 2015 at 7:41 AM Mike Meyer <mwm at mired.org> wrote:
>> On Wed, Apr 15, 2015 at 5:28 PM, Gautier DI FOLCO <
>> gautier.difolco at gmail.com> wrote:
>>> 2015-04-15 19:15 GMT+00:00 Mike Meyer <mwm at mired.org>:
>>>> Well, functional programming is very much like an elephant.
>>> I have the same thought about OOP some years ago, them I discovered then
>>> first meaning of it and all was so clear and simple. My goal isn't to teach
>>> the full power of FP, my goal is to give them inspiration, to suggest that
>>> there is a wider world to explore.
>> Just clarify, this is a reference to the fable of the blind men and the
>> elephant. What you think it is like will depend on how you approach it.
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