I am new to F# and I have this code:

if s.Contains("-") then
    let x,y =
      match s.Split [|'-'|] with
      | [|a;b|] -> int a, int b
      | _ -> 0,0

Notice that we validate that there is a '-' in the string before we split the string, so the match is really unnecessary. Can I rewrite this with Options?

I changed this code, it was originally this (but I was getting a warning):

if s.Contains("-") then
    let [|a;b|] = s.Split [|'-'|] 
    let x,y = int a, int b

NOTE: I am splitting a range of numbers (range is expressed in a string) and then creating the integer values that represent the range's minimum and maximum.