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Elm

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

15 Mentors

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

3,715 Students

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

46 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.

Concretely, 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

Exercism is a great website where I was able to have some very interesting challenges.

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 Aaron Strick

Aaron Strick website

Elm was my introduction to typed languages and a gateway for me to functional programming. I was lucky enough to learn it on the job, and have since adopted it as my main frontend language.
Avatar of Yeong Sheng, Tan

Yeong Sheng, Tan https://github.com/yeongsheng-tan

I was working on our front-end EmberJS codebase back in 2014, and beginning to toy with ReactJS. Given I've not touched Javascript since 2005, EmberJS and ReactJS did not feel right at home for me. Then Redux came along, and that was when I found elm-lang which did everything that React+Redux provided, with a friendly compiler, less boiler-plate code, and the safety of no runtime ever once it compiles.
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.
Avatar of Léo Jeusset

Léo Jeusset https://github.com/leojpod

I worked with Elm professionaly and I love it! Trusting the language is such a relief on your mind, as a developer you can really start to express yourself and let the code flow, the compiler will watch your back!
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 Wolfgang Schuster

Wolfgang Schuster https://github.com/wolfadex

I love Elm for it's explicitness and beautiful error messages. I've work with Elm professionally, as well as in my hobby projects. I've coding since 2006 and have been building web apps professionally since 2012.
Fun. Challenging. Interesting

Community-sourced Elm exercises

These are a few of the 46 exercises on the Elm track. You can see all the exercises here.

Acronym
medium
strings
transforming
Space Age
easy
floating point numbers
RNA Transcription
easy
strings
transforming
Isogram
easy
filtering
strings
Accumulate
easy
recursion
transforming
Sum Of Multiples
easy
lists
transforming
math
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 Cedd Burge

Cedd Burge Blog posts

I am a software lead / manager / architect type thing. I mostly program in Elm, C#, Python, Typescript and Delphi. I mentor on Exercism and for Code First Girls
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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