21–30 of 46 posts
1) WHY: The Functional Programmer's Toolkit - Scott Wlaschin : https://www.youtube.com/watch?v=Nrp_LZ-XGsY
2) WHAT: Learn Haskell in one video : https://www.youtube.com/watch?v=02_H3LjqMr8
3) HOW: Haskell without the theory : https://www.vacationlabs.com/haskell/
It'll teach you enough to be dangerous. Obviously your learning has just begun, but with a mental platform that lets you study other resources in time and practically test things out.
I'll add my two cents. Over the past year or so I went from being completely overwhelmed by Haskell to feeling pretty comfortable reading / writing Haskell, even enough to make my first PR to a Haskell package! Here's what worked for me: * I went through LYAH, but at a certain point I felt like it wasn't doing me any favors by sweeping some of the inherent complexity under the rug. So I started listening to talks by…
>forced me to learn stuff like: how to manage a monad transformer stack, how to make http requests, how to parse and serialize json, how to write to a database, etc.. I am currently just before this stage. I can use Haskell for stuff like projecteuler.net problems but I haven't written a single useful, real-world program without copy-pasting some code. I tried doing something with http requests to an API for stock tr…
[0]: https://hackage.haskell.org/package/wreq
[1]: https://bitemyapp.com/blog/haskell-is-not-trivial-not-unfair...
While it is one person's opinion (albeit well explained) I strongly appreciated Chris Allen's efforts to evaluate existing learning material (prior to co-writing his book) as well as recommending a learning path [2]. Ultimately there is multitudinous material to study. For the textbook-like route, choose something that seems sensible and commit, leaving only when it appears to no longer be fulfilling the purpose. Juggling too many artifacts is like interrupting programmers.
I don't use VS Code but again, my elementary knowledge of the language, plus sufficiency with GHCi, meant I could stay within my Vim comfort zone. If anyone has a good single resource for configuring Vim for Haskell I'd love to see it?
[0] State of the Haskell ecosystem https://github.com/Gabriel439/post-rfc/blob/master/sotu.md [1] Functional Education https://bitemyapp.com/blog/functional-education/ (December 2014) [2] How to learn Haskell https://github.com/bitemyapp/learnhaskell
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LYAH is a great resource but it is a bit dated at this point and there have been more entries into the space. Haskell needs more content like this to show people how approachable it is, and especially when they're more up to date and more in line with recent best practices in using haskell. As long as we're not all doing burrito tutorials, the more people that engage with Haskell (and write posts about it), especiall…
So is it still worth reading LYAH nowadays? Are there any other resources that you could recommend instead of it?
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>forced me to learn stuff like: how to manage a monad transformer stack, how to make http requests, how to parse and serialize json, how to write to a database, etc.. I am currently just before this stage. I can use Haskell for stuff like projecteuler.net problems but I haven't written a single useful, real-world program without copy-pasting some code. I tried doing something with http requests to an API for stock tr…
Try using wreq[0] instead. Here's also a post[1] which describes someone else facing the same pains earlier that you're currently having. For anything to do with JSON, you need Aeson[2]. For working with databases, Persistent[3] and Esqueleto[4] (they're designed to work together) work great. [0]: https://hackage.haskell.org/package/wreq [1]: https://bitemyapp.com/blog/haskell-is-not-trivial-not-unfair... [2]: https:…
I'll add my two cents. Over the past year or so I went from being completely overwhelmed by Haskell to feeling pretty comfortable reading / writing Haskell, even enough to make my first PR to a Haskell package! Here's what worked for me: * I went through LYAH, but at a certain point I felt like it wasn't doing me any favors by sweeping some of the inherent complexity under the rug. So I started listening to talks by…
>forced me to learn stuff like: how to manage a monad transformer stack, how to make http requests, how to parse and serialize json, how to write to a database, etc.. I am currently just before this stage. I can use Haskell for stuff like projecteuler.net problems but I haven't written a single useful, real-world program without copy-pasting some code. I tried doing something with http requests to an API for stock tr…
The "req" package is very intuitive to use for requests, and plays nicely with "aeson" for parsing JSON. I'm also using "persistent" to manage a sqlite database.
For project ideas, try to scratch a personal itch. If you're solving a problem (or a daily frustration) that's important to you, you'll be more motivated to follow through! For me, I had been using the beets (https://beets.io/) command line tool to manage tags for my music library, but it isn't really optimized for my use case, and I thought I could do better. So I decided to write a cli [1] with Haskell to tag all my local music files with metadata from Discogs/MusicBrainz, modeled after the beets tagging loop. I'm also working on a more advanced tagging system that uses Datalog inference rules, inspired by a blog post [2].
[1] https://github.com/benrbray/borscht-hs [2] https://dodisturb.me/posts/2018-12-25-The-Essence-of-Datalog...
Noob question: does it worth, for a beginner, to start with Haskell instead of Elm or Purescript?
EDIT: Seriously downvotes for that? Go watch some of Evan's talks on Elm, when pressed for why he doesn't implement some of Haskell's more out-there features, he states that his goal is not to appeal to Haskell devs, but to JS devs, and that he wants to keep the language palatable to them.
This got me thinking of something a bit ridiculous: could it be possible, given enough carefully designed examples, to effectively teach the basics of a language without using a single word of a human language?
This got me thinking of something a bit ridiculous: could it be possible, given enough carefully designed examples, to effectively teach the basics of a language without using a single word of a human language?