Re: [Haskell-cafe] what is basic Haskell?

That's setting the bar rather high, isn't it? I appreciate that you are talking about professionals, but working professionals whose domain is Haskell programming should have long since mastered basic Haskell, whatever we call "basic". Their daily work is intermediate Haskell, with occasional detours into the advanced. On Thu, Jul 24, 2014 at 7:01 PM, Wojciech Danilo wrote:

This is **very** interesting question! When we recruit people to our company (we are working in Haskell everyday), we are basing on some classification between basic, intermediate and advanced stuff. These sections are shown below. I would love to hear what others are thinking about it and what from the below stuff would be widely considered as "basic Haskell knowledge", which would allow for full-time basic Haskell work.

Basics

type classes instances functors, applicatives, monads, etc (http://www.haskell.org/haskellwiki/Typeclassopedia) functional dependencies

Patterson condition Coverage condition Liberal coverage condition

monad transformers

Intermidiate

lens arrows free monads GADTs Type families

closed type families

existential datatypes RankNTypes church encoding

Advanced

templateHaskell generics continuations delimited continuations

2014-07-25 0:44 GMT+02:00 Johan Larson :

...

What does a programmer need to know to be proficient in "basic Haskell"?

For my money, basic programming skills are those that are required to write programs for simple tasks in the common idioms of the language. This means the practitioner should be able to read input from the terminal or files, select/combine/reformat data, and output a result. At this point, efficiency isn't really the point; only getting to a correct answer without writing anything really weird matters.

In LYAH, I'd put the boundary at the end of chapter 9, which covers the IO monad. At that point the reader has studied functions, lists, tuples, types, recursion, higher order functions, four major modules, and algebraic data types. Actually, some of the later topics in chapter 8 (functors, kinds, recursive data structures) seem more like intermediate material.

Thoughts?

-- Johan Larson -- Toronto, Canada _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

-- Johan Larson -- Toronto, Canada