FP-Course-ITMO VS wiwinwlh

wiwibwlh

In this respect, The Haskell Guide is not a tutorial, project-based guide or textbook, which aims to give a more complete walk through the language, in a linear fashion, but more like a reference guide that is carefully designed to be accessible and clear. In that respect, it's like a beginner level version of What I Wish I Knew When I Learned Haskell, with more cross-referencing. (By the way, I don't think this is a substitute for more in-depth or didactically rich resources at all; it's trying to address a different problem.)

Many libraries try to stick to Haskell 98. Also whenever someone writes a paper about some new techniques, they always seem to take a lot of pleasure in pointing out when their technique works in Haskell 98.

I like that you can mix and match GHC extensions even in the same project. So one library (or even just one module) might use some crazy and messy extensions, but you can still use it from vanilla Haskell.

http://dev.stephendiehl.com/hask/#language-extensions has a list of extensions and some judgement on them.

For example, I really like TupleSections. They are not strictly necessary for anything, they are purely cosmetic / syntactic sugar. But they also don't cause any mess. https://ghc.gitlab.haskell.org/ghc/doc/users_guide/exts/tupl...

Also: TypedHoles are really neat for developing, and will never show up in your final code. https://ghc.gitlab.haskell.org/ghc/doc/users_guide/exts/type...

Maybe try to implement something using Haskell? For example, try to read through: https://en.wikibooks.org/wiki/Write_Yourself_a_Scheme_in_48_Hours to see how the concepts are used in a "real world" setting. Also, https://github.com/sdiehl/wiwinwlh is an underrated resource imo. Anyways, the best way to learn Haskell is to just use it. I'm still learning myself, so I don't have much to say beyond that.