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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

3,460 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.

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

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 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 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 SiriusStarr

SiriusStarr https://github.com/SiriusStarr

My phone, laptop, and desktop are hostnamed Functor, Applicative, and Monad (respectively); that should tell you how I feel about FP. Elm was my gateway language to that wonderful world, and it can be yours too!
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 Anthony Deschamps

Anthony Deschamps https://github.com/adeschamps

I use Elm for hobby projects and occasionally at work. I like it for a lot of technical reasons, but most of all for the great community.
Avatar of Cedd Burge

Cedd Burge Blog Posts

I'm a software lead / architect / manager type thing and I have a strong focus on code quality. Elm is the first functional language I've learned and it's impressively easy. The language has a strong focus on simplicity and a single recommended way of doing things, which is a refreshing change in the Front End world. It sits very well in it's target niche, and the runtime essentially provides an impure abstract syntax tree interpreter, leaving all your code 100% pure / functional. There is a strong and vibrant community, which is both innovative and supportive to newcomers.
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.

Gigasecond
easy
dates
Run Length Encoding
medium
algorithms
transforming
Wordy
hard
parsing
All Your Base
medium
integers
math
transforming
Matching Brackets
medium
parsing
stacks
Allergies
medium
bitwise operations
enumerations
filtering
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 Matthieu Pizenberg

Matthieu Pizenberg

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

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

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