Programming Fundamentals/Introduction/Haskell
hello.hs
-- | This program displays "Hello world!"
-- |
-- | References:
-- | https://wiki.haskell.org/Haskell_in_5_steps
main = putStrLn "Hello world!"
Try It
Copy and paste the code above into one of the following free online development environments or use your own Haskell compiler / interpreter / IDE.