Setup and syntax
Haskell is pure: functions cannot perform side effects unless the type says so.
What you will be able to do
- Use :l in GHCi to load a file.
- Function application uses a space.
- Types are checked at compile time.
In plain English
Haskell is pure: functions cannot perform side effects unless the type says so.
- Use :l in GHCi to load a file.
- Function application uses a space.
- Types are checked at compile time.
main :: IO ()
main = putStrLn "Hello, world"Your turn
EasyExplain it back
Answer from memory: What does IO () mean for main?
TEXT · starter
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Knowledge checkQuestion 1
What does IO () mean for main?
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