Using Haskell

This is a collection of articles about using the Haskell programming language to accomplish the sorts of tasks you might want a computer to do.

There's already a number of good guides for learning Haskell that I can recommend from having used them myself (either part of them or all of them):

• Beginners
  • Haskell Programming From First Principles ($60, worth every penny)
  • CIS194, Spring 2013 (free)
  • Advent of Code (free, not haskell specific, but a good collection of homework problems to get you thinking)
  • Modeling Data in Haskell for Beginners (youtube)
• More Advanced
  • Parallel and Concurrent Programming in Haskell (free to read on the website)
  • What I Wish I Knew When Learning Haskell (free)
  • Haskell High Performance Programming ($40, I'd wait for a sale)

But even with all of that, sometimes things aren't always clear. There is, quite simply, a lot of Haskell.

So with this project I'm attempting to fill in some of those gaps. This will largely be similar in format to the "What I Wish I Knew" guide. However, instead of covering as many topics as possible, and then each one only being touched on slightly, I hope to cover a few topics of interest with longer examples and more details. I'm a hobbyist programmer, so the focus will be on basic hobbyist sorts of concerns that sometimes get left out of Haskell guides. The two main things I hope to focus on are:

• How can I actually interact with a user in a complete program?
• How can I read a guide about something neat in another language and then do it in Haskell?

Haskell Discussion

I obviously can't cover every topic fully, and to grow as a Haskell user you'll have to get lots of perspectives on Haskell.

• Reddit
  • Haskell
  • Haskell Questions
  • Haskell Game Dev
• Stack Overflow
• There is a #haskell IRC Channel on Freenode, as well as several sibling channels (#haskell-game, #haskell-stack, #haskell-beginner, etc).
• There's a #haskell channel in the Functional Programming Discord, which gets less traffic than the IRC channel, but at least there's a channel history so you can see if you missed any messages.
• Some Mailing Lists

License

The code examples that I've written here are released into the public domain (or CC0 for countries that don't recognize public domain). Code examples are any portion that's in a fixed-width code block, such as this:

fib 0 = 0
fib 1 = 1
fib n = fib (n-1) + fib (n-2)

The non-code text of this document is available under the CC BY-SA 4.0 International license.

Any excerpts from libraries are still under that library's own license of course, and such excerpts will say so and list the appropriate license.

Contributing

If you have something that you think should be changed, you can start a discussion about it.

I suppose you can also try sending a private message to me (Lokathor on Freenode, Lokathor#2627 on Discord). Discord is a reliable enough form of communication, but IRC is sadly not.