Elm

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Elm is a pure, functional language that compiles to javascript
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11 Mentors

Our mentors are friendly, experienced Elm developers who will help teach you new techniques and tricks.
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1,978 Students

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Track exercises

43 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 name =
    case name of
        Just name_ ->
            "Hello, " ++ name_ ++ "!"

        Nothing ->
            "Hello, World!"

Elm is a pure, functional language that compiles to javascript.

It was designed by Evan Czaplicki as part of writing his thesis on Concurrent FRP for Functional GUIs and evolved into a language to help make making user interfaces better.

Elm's goal is to be the simplest and best language for making web-based user interfaces.

Elm aims to completely eliminate runtime exceptions by combining an aggressively helpful compiler with solid architectural principles.

You can learn more about Elm at the official website.

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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 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 Nathan Chere

Nathan Chere NathanChere.com.au

I like to code.
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 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 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.
Fun. Challenging. Interesting

Community-sourced Elm exercises

These are a few of the 43 exercises on the Elm track. You can see all the exercises here.

Bob
easy
conditionals
strings
text formatting
Grade School
easy
maps
sorting
Luhn
medium
misc
Run Length Encoding
easy
misc
Grains
easy
integers
Gigasecond
easy
dates

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