How do I install the Haskell async library?

How do I install the Haskell async library?

To install the Haskell async library, you can use the Cabal package manager. Just run cabal update followed by cabal install async.

Do I need to have GHC installed first?

Yes, you need to have the Glasgow Haskell Compiler (GHC) installed to use Cabal and install libraries.

What if I want to use Stack instead of Cabal?

If you're using Stack, you can add the async library to your project's stack.yaml file under the extra-deps section, or simply run stack add async.

Can you show me an example of using the async library?

Sure! Here's a simple example:

import Control.Concurrent.Async

main :: IO ()
main = do
    result <- async (someLongRunningTask)
    -- Do other work here
    wait result