Just a commit

elm/hello-world/HelloWorld.elm

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+{-
+This is a "stub" file.  It's a little start on your solution. It's not a
+complete solution though; you have to write some code.
+
+The module name is expected by the test program and must match the name of this
+file. It has to stay just the way it is.
+-}
+
+
+module HelloWorld exposing (..)
+
+-- It's good style to include any types at the top level of your modules.
+
+
+helloWorld : Maybe String -> String
+helloWorld name =
+  "replace with your code!"
+
+
+
+{-
+When you have a working solution, REMOVE ALL THE STOCK COMMENTS.
+They're here to help you get started but they only clutter a finished solution.
+If you leave them in, nitpickers will protest!
+-}

elm/hello-world/HelloWorldTests.elm

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+module Main exposing (..)
+
+import ElmTest exposing (..)
+import HelloWorld exposing (helloWorld)
+
+
+tests : Test
+tests =
+    suite "Hello, World!"
+        [ test "Hello with no name" (assertEqual "Hello, World!" (helloWorld Nothing))
+        , test "Hello to a sample name" (assertEqual "Hello, Alice!" (helloWorld (Just "Alice")))
+        , test "Hello to another sample name" (assertEqual "Hello, Bob!" (helloWorld (Just "Bob")))
+        ]
+
+
+main : Program Never
+main =
+    runSuite tests

elm/hello-world/README.md

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+# Hello World
+
+Write a function that greets the user by name, or by saying "Hello, World!" if no name is given.
+
+["Hello, World!"](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program) is the traditional first program for beginning programming in a new language.
+
+**Note:** You can skip this exercise by running:
+
+    exercism skip $LANGUAGE hello-world
+
+## Specification
+
+Write a `Hello World!` function that can greet someone given their name.
+The function should return the appropriate greeting.
+
+For an input of "Alice", the response should be "Hello, Alice!".
+
+If a name is not given, the response should be "Hello, World!"
+
+## Test-Driven Development
+
+As programmers mature, they eventually want to test their code.
+
+Here at Exercism we simulate [Test-Driven Development](http://en.wikipedia.org/wiki/Test-driven_development) (TDD), where you write your tests before writing any functionality. The simulation comes in the form of a pre-written test suite, which will signal that you have solved the problem.
+
+It will also provide you with a safety net to explore other solutions without breaking the functionality.
+
+### A typical TDD workflow on Exercism:
+
+1. Run the test file and pick one test that's failing.
+2. Write some code to fix the test you picked.
+3. Re-run the tests to confirm the test is now passing.
+4. Repeat from step 1.
+5. Submit your solution (`exercism submit /path/to/file`)
+
+## Instructions
+
+Submissions are encouraged to be general, within reason. Having said that, it's also important not to over-engineer a solution.
+
+It's important to remember that the goal is to make code as expressive and readable as we can. However, solutions to the hello-world exercise will not be reviewed by a person, but by rikki- the robot, who will offer an encouraging word.
+
+## Source
+
+This is an exercise to introduce users to using Exercism [http://en.wikipedia.org/wiki/%22Hello,_world!%22_program](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program)
+
+## Submitting Incomplete Problems
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.
+

elm/hello-world/elm-package.json

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+{
+    "version": "2.0.0",
+    "summary": "Exercism problems in Elm.",
+    "repository": "https://github.com/exercism/xelm.git",
+    "license": "BSD3",
+    "source-directories": [
+        "."
+    ],
+    "exposed-modules": [],
+    "dependencies": {
+        "elm-community/elm-test": "1.0.0 <= v < 2.0.0",
+        "elm-lang/core": "4.0.0 <= v < 5.0.0"
+    },
+    "elm-version": "0.17.0 <= v < 0.18.0"
+}

elm/hello-world/runtests.bat

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+@echo off
+for %%f in (*Tests.elm) do (
+  elm-make %%f --yes --output build.js && node build.js
+)

elm/hello-world/runtests.sh

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+#!/usr/bin/env bash
+elm-make *Tests.elm --yes --output build.js && node build.js