Question

I’m new to F#. I’m using VS2008 shell and F# interactive.
I try to split a string using “System.String.Split” but then I get the error:
“Split is not a static method”

code example:

let Count text =
    let words = System.String.Split [' '] text
    let nWords = words.Length
    (nWords)

How do I use the String methods like split in F# ?

Answer 1

You call them as instance methods:

let Count (text : string) =
  let words = text.Split [|' '|]
  let nWords = words.Length
  (nWords)

(Note you need to use [| |] because Split takes an array not a list; or, as per Joel Mueller’s comment, because Split takes a params array, you can just pass in the delimiters as separate arguments (e.g. text.Split(' ', '\n')).)