2-fer is short for two for one. One for you and one for me.
Given a name, return a string with the message:
One for X, one for me.
Where X is the given name.
However, if the name is missing, return the string:
One for you, one for me.
Here are some examples:
|Name||String to return|
|Alice||One for Alice, one for me.|
|Bob||One for Bob, one for me.|
|One for you, one for me.|
|Zaphod||One for Zaphod, one for me.|
To run the tests, run the command
dotnet test from within the exercise directory.
F# source code can be formatted with the Fantomas tool.
After installing it with
dotnet tool restore, run
dotnet fantomas . to format code within the current directory.
For more detailed information about the F# track, including how to get help if you're having trouble, please visit the exercism.io F# language page.
// This file was auto-generated based on version 1.2.0 of the canonical data. module TwoFerTests open FsUnit.Xunit open Xunit open TwoFer [<Fact>] let ``No name given`` () = twoFer None |> should equal "One for you, one for me." [<Fact(Skip = "Remove this Skip property to run this test")>] let ``A name given`` () = twoFer (Some "Alice") |> should equal "One for Alice, one for me." [<Fact(Skip = "Remove this Skip property to run this test")>] let ``Another name given`` () = twoFer (Some "Bob") |> should equal "One for Bob, one for me."
module TwoFer let twoFer (input: string option): string = sprintf "One for %s, one for me." (defaultArg input "you")
A huge amount can be learned from reading other people’s code. This is why we wanted to give exercism users the option of making their solutions public.
Here are some questions to help you reflect on this solution and learn the most from it.