Elm

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Elm is a pure, functional language that compiles to javascript
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Track mentors

14 Mentors

Our mentors are friendly, experienced Elm developers who will help teach you new techniques and tricks.
Track students

2,907 Students

Join thousands of students who have enjoyed learning and improving their skills by taking this track.
Track exercises

45 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About Elm

module HelloWorld exposing (helloWorld)


helloWorld : Maybe String -> String
helloWorld maybeName =
    case maybeName of
        Nothing ->
            "Hello, World!"

        Just name ->
            "Hello, " ++ name ++ "!"

Elm describes itself as a "delightful language for reliable webapps". It aims at producing web applications with great performances and no runtime exception.

Concretly, it is a functional programming language compiling to JavaScript. Its syntax and features originated from the ML family of languages, such as Haskell, but with a strong emphasis on learnability and simplicity.

You can learn more about elm on the official website, elm-lang.org. Newcomers should start with the elm guide, located at guide.elm-lang.org.

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Exercism is a great website

The reviews are incredibly helpful because they help me see things that I missed, learn about new ways and sometimes interesting discussions that can add a fun twist to maybe a simple problem.

Relaxed. Encouraging. Supportive.

Meet the Elm Track mentors

Once you join the Elm language track, you will receive support and feedback from our team of mentors. Here are the bios of a few of the mentors of this track.

Avatar of Vasanth Pappu

Vasanth Pappu

I am drawn to Elm because it is a safe, reliable, and refactorable alternative to building webapps. It's an approachable language that not only supports the dynamic nature of greenfield projects, but it can also be adopted in small steps within legacy apps implemented in other front-end solutions.
Avatar of Ilias Van Peer

Ilias Van Peer https://github.com/zwilias

I love everything about Elm. My days are spent programming in Elm as a professional, my weekends are spent working on open source Elm projects and packages. I'm a member of the Elm core team and you can always find me on the Elm-lang Slack!
Avatar of Nat Knight

Nat Knight website

I like Elm for its friendliness: I'm more confident in my Elm code than I am in code in any other language, and I never feel pressured to use things I don't understand.
Avatar of Percy Grunwald

Percy Grunwald

If it compiles, it will work forever. I've never written applications with fewer runtime errors than I have in Elm. Don't let the learning curve disuade you, once you're proficient in Elm you won't look back.
Avatar of Jake Varness

Jake Varness GitHub Page

Elm is a great language for folks to learn functional programming. Elm was the first functional programming language I've learned, and is great for teaching fundamental concepts and paradigms used when creating single-page web applications!
Avatar of Michael Glass

Michael Glass website

I like elm and also I like you. I love elm because it's so easy to refactor my first draft into something beautiful. I hope you do, too.
Fun. Challenging. Interesting

Community-sourced Elm exercises

These are a few of the 45 exercises on the Elm track. You can see all the exercises here.

Pascal's Triangle
medium
lists
math
recursion
Roman Numerals
medium
recursion
transforming
Accumulate
easy
recursion
transforming
Acronym
medium
strings
transforming
Word Count
medium
maps
strings
transforming
Nucleotide Count
easy
maps
strings
Passionate. Knowledgeable. Creative.

Meet the Elm Track maintainers

The Elm Maintainers are the brains behind the Elm Track. They spend their spare time creating interesting and challenging exercises that we can all learn from. We are incredibly grateful for their hard work. Here are the bios of a few of the maintainers of this track.

Avatar of Kenneth Bogner

Kenneth Bogner

This maintainer has not added their bio yet.
Avatar of Matthieu Pizenberg

Matthieu Pizenberg

Passionate about robotics, photo, computer vision, and raclette!

Get started with the Elm track. As with everything on Exercism, it's 100% free!

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