Elm

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

11 Mentors

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

1,897 Students

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

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 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 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 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 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 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.
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.

Triangle
easy
misc
Series
easy
misc
Collatz Conjecture
easy
math
RNA Transcription
easy
strings
transforming
Hello World
easy
strings
Gigasecond
easy
dates

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