Re: [Haskell-cafe] How to compose operations in streaming

On Wed, Jun 03, 2020 at 03:04:59PM +0800, ☂Josh Chia (謝任中) wrote:

I want to putStrLn each element and then print the length of str [...] doit :: Stream (Of String) IO () -> IO () doit str = do SP.mapM_ putStrLn str SP.length_ str >>= print

Isn't it SP.length_ (SP.mapM_ putStrLn str) >>= print