Re-re-starting my adventures in Haskell, for no particularly good reason.

Try the first Project Euler problem: https://projecteuler.net/problem=1

GitHub repo is here: https://github.com/JohnL4/ProjectEuler

...aaaaand, now I have a blank editor in front of me. Now what?

Output#

putStr and putStrLn for printing to stdout. NOTE: This only prints strings. Use print as a more general-purpose output.

See this page: 2015-09-27-writing-a-simple-haskell-script-from-scratch

So... the first problem is adding ghc to your path in emacs (if you use that editor).

Stack#

Actually, a better choice is to install stack, which managed the entire toolchain for you, kind of like npm does for Node.

See https://docs.haskellstack.org/en/stable/install_and_upgrade/, and http://haskell.github.io/haskell-mode/manual/latest/Compilation.html. After that, you should be off to the races.