Just to add to David's answer, when I find myself in situations like:

foo >>= return . bar

hlint helpfully suggests:

fmap bar foo

So you could also have:

fmap (splitOn ",") $ readFile "data.txt"

-vale

--
vale cofer-shabica
401.267.8253

On Mon, Dec 11, 2017 at 4:24 PM, mike h <mike_k_houghton@yahoo.co.uk> wrote:

Thank you David.  Before posting I tried readFile "data.txt" >>= … but got errors as I didn’t use return.!! 

Mike

On 11 Dec 2017, at 21:00, David McBride <toad3k@gmail.com> wrote:

splitOn "," <$> readFile "data.txt"

or perhaps

readFile "data.txt" >>= return . splitOn ","

On Mon, Dec 11, 2017 at 3:56 PM, mike h <mike_k_houghton@yahoo.co.uk> wrote:

I have

 input <- readFile “data.txt”
 let  input’ = splitOn “,” input
….

How do I make that into just one line?

Thanks

Mike
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