The classical introductory exercise. Just say "Hello, World!".
"Hello, World!" is the traditional first program for beginning programming in a new language or environment.
The objectives are simple:
If everything goes well, you will be ready to fetch your first real exercise.
$ poly --use {exercise}.sml
Or:
$ poly
> use "{exercise}.sml";
Note: You have to replace {exercise}.
$ poly -q --use test.sml
The exercism/sml repository on GitHub is the home for all of the Standard ML exercises.
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This is an exercise to introduce users to using Exercism http://en.wikipedia.org/wiki/%22Hello,_world!%22_program
It's possible to submit an incomplete solution so you can see how others have completed the exercise.
(* version 1.0.0 *)
use "hello-world.sml";
use "testlib.sml";
infixr |>
fun x |> f = f x
val testsuite =
describe "hello-world" [
test "Say Hi!"
(fn _ => hello () |> Expect.equalTo "Hello, World!")
]
val _ = Test.run testsuite
fun hello () =
"Hello, World!"
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.
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