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

3,657 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

What I like about it is that I am able to solve the challenges in a TDD way working in a environment that I am familiar (my own PC not a browser IDE) and the cherry on the top of the cake is that I have access to code reviews.

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 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 Christoph Lipp

Christoph Lipp https://github.com/ser1us

I use Elm for all my personal projects where I need a frontend framework (instead of React for example). Elm's development is "slow" compared to other languages but this makes it even more appealing to me.
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 Nathan Chere

Nathan Chere https://nathanchere.com.au

I like to code.
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 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.
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
All Your Base
medium
integers
math
transforming
List Ops
medium
lists
recursion
Largest Series Product
medium
integers
math
strings
transforming
Run Length Encoding
medium
algorithms
transforming
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 Matthieu Pizenberg

Matthieu Pizenberg

Passionate about robotics, photo, computer vision, and raclette!
Avatar of Kenneth Bogner

Kenneth Bogner

This maintainer has not added their bio yet.

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