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

2,924 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.

Join the Elm track

A tremendous learning opportunity to explore the depth of your own knowledge

Exercism is fantastic in learning new languages but that is not the extent of it. If you are a "more experienced" programmer you may have encountered impostor syndrome: the idea you don't really know what you think you know. Exercism lets you solve problems and put them in the space of open feedback which is a tremendous learning opportunity to explore the depth of your own knowledge. Even if you have been programming in a language for awhile it is worth checking into Exercism to see where you stand with current implementation practices.

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 Nathan Chere

Nathan Chere https://nathanchere.com.au

I like to code.
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 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 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 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.

Pascal's Triangle
medium
lists
math
recursion
Anagram
medium
filtering
strings
Roman Numerals
medium
recursion
transforming
Word Count
medium
maps
strings
transforming
RNA Transcription
easy
strings
transforming
Series
medium
lists
strings
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 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.

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

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