Contents

module PhoneNumber

open System

let parsePhoneNumber (input: string) = 
    let digits = input.ToCharArray() |> Array.filter (Char.IsDigit) |> String

    match digits.Length with
    | 10 -> Some digits
    | 11 when digits.Chars 0 = '1' ->  Some (digits.Substring(1))
    | _ -> None

Version data entries

264 entries across 264 versions & 1 rubygems

Version	Path
trackler-2.2.1.46	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.45	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.44	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.43	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.42	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.41	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.40	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.39	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.38	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.37	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.36	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.35	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.34	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.33	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.32	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.31	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.30	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.29	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.28	tracks/fsharp/exercises/phone-number/Example.fs
trackler-2.2.1.27	tracks/fsharp/exercises/phone-number/Example.fs