Question

I need to create a collection in F# that has a key value pair and is global in scope.

Answer 1

You can do this:

[<AutoOpen>]
module Globals =
  let map = System.Collections.Generic.Dictionary<_,_>()

Then use it unqualified throughout your program:

map.Add(1, "a")
map.Add(2, "b")
map |> Seq.iter (fun (KeyValue(k, v)) -> printfn "Key: %d, Value: %s" k v)