What are IO exceptions in Haskell?

What are IO exceptions in Haskell?

IO exceptions in Haskell are errors that occur during input/output operations, such as file handling.

How can I handle these exceptions in my code?

You can handle IO exceptions using the Control.Exception module, specifically with catch or try functions.

Can you show me a code example?

Sure! Here's a simple example:

import Control.Exception

main :: IO ()
main = do
    result <- try (readFile "nonexistent.txt") :: IO (Either IOException String)
    case result of
        Left ex   -> putStrLn $ "Caught an exception: " ++ show ex
        Right content -> putStrLn content

What other types of exceptions can I handle?

In addition to IO exceptions, you can handle asynchronous exceptions, user-defined exceptions, and more using the same module.