The first exercise I did when I learned Haskell some 8 years ago was re-implement all of the list functions in the Prelude, based on the types and documentation. On Tue, Apr 14, 2015 at 11:34 PM, Gautier DI FOLCO < gautier.difolco@gmail.com> wrote:
Hello,
Some days ago I have participated to a coding dojo* which aimed to be an introduction to functional programming. I have also facilitate 3 of events like this and do several talks on this subject. But I'm kinda disappointed because each time there is a common pattern: 1. Unveil the problem which will be treated 2. Let the attendees solve it 3. Show the FP-ish solution (generally a bunch of map/fold) I think it's frustrating for the attendees (because they don't try to solve it) and gives a false illusion of knowledge. I don't consider myself as a "FP guru" or anything but for me FP is a matter of types and expressions, so when someone illustrate FP via map/fold, it's kind of irritating. Ironically, the best workshop I have done was on functional generalization (you begin by two hard coded functions, sum and product, and you extract Foldable and Monoid), but again, it's not satisfying. We can do better, we should do better. Have you got any feedback/subjet ideas/examples on how to introduce "real" FP to beginners in a short amount of time (like 1-3 hours)?
Thanks in advance for your help. Regards.
* Basically you have 2 to 3 hours, a problem and you try to solve with in iteration with different constraints
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