3 ms·
Haskell: import Data.IORef main :: IO () main = do x <- newIORef (0 :: Int) writeIORef x 5 y <- readIORef x print y
by greydius 2y ago
Haskell:
import Data.IORef
main :: IO ()
main = do
x <- newIORef (0 :: Int)
writeIORef x 5
y <- readIORef x
print y