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Elixir

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Elixir is a dynamic, functional language designed for building scalable and maintainable applications. Elixir leverages the Erlang VM, known for running low-latency, distributed and fault-tolerant systems, while also being successfully used in web development and the embedded software domain.
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Track mentors

62 Mentors

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

21,554 Students

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

94 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About Elixir

defmodule HelloWorld do

  @doc """
  Greets the user by name, or by saying
  "Hello, World!" if no name is given
  """
  def hello(name \\ "World") do
    "Hello, #{name}!"
  end
end

Elixir, initially released in 2012, extends upon the already robust features of Erlang while also being easier for beginners to access, read, test, and write.

José Valim, the creator of Elixir, explains here how he built the language for applications to be:

  1. Distributed
  2. Fault-Tolerant
  3. Soft-Real-Time
  4. Hot-Code-Swapped (can introduce new code without stopping the server)

Elixir actually compiles down to bytecode and then runs on the BEAM Erlang Virtual Machine.

There is no "conversion cost" for calling Erlang, meaning you can run Erlang code right next to Elixir code.

Being a functional language, everything in Elixir is an expression.

Elixir has "First Class Documentation" meaning comments can be attached to a function, making it easier to retrieve.

Regular expressions are also given first class treatment, removing awkward escaping within strings.

Elixir's asynchronous communication implementation allows the code to be lightweight, yet incorporate high-volume concurrency.

Programmers use Elixir to handle thousands of requests and responses concurrently on a single server node.

It has been used successfully for microservices that need to consume and serve a multitude of APIs rapidly.

The Phoenix framework helps structure Elixir applications for the web.

Join the Elixir track

Self-contained finite problems with which to learn the language

I have spent time with the Clojure, Elixir & Go tracks and all have been incredibly beneficial, providing self-contained finite problems with which to learn the language. The Go language track has been wonderful in introducing me to the language, what idiomatic code is, and the many different ways in which one can solve a problem.

Relaxed. Encouraging. Supportive.

Meet the Elixir Track mentors

Once you join the Elixir 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 Fabian Zitter

Fabian Zitter https://github.com/Ninigi

I started using elixir around 2016 and we have been using it in our company since 2017. I love the language for how well it translates what I want to do into code.
Avatar of Tim Austin

Tim Austin my blog

Was interested in elixir for a long time, but didn't really start to look into it until 2018. Started the track, and enjoyed it so much I decided to help others enjoy their time learning it as well.
Avatar of João Pedro de Carvalho

João Pedro de Carvalho https://github.com/sleepiejohn

I'm a Java guy during the days, Elixir and Rust by night, eager share ideas and take other's critics because there is no wrong question.
Avatar of Rodrigo Nonose

Rodrigo Nonose https://github.com/rhnonose

Programmer/developer/engineer, working full time with elixir for two years doing regular web stuff.
Avatar of Christian Tovar

Christian Tovar https://github.com/ChristianTovar

I'm a backend engineer interested in distributed systems and functional programming. Elixir has become my favorite programming language due to it's elegant syntax, resilience and performance. I hope to keep using it profesionally for many years and have the chance to experience how it's ecosystem expands as the years go on.
Avatar of Nathan Chere

Nathan Chere GitLab

I first got into Elixir in 2015 and haven't looked back. My day job still largely centres around .NET but Elixir is the language I remain the most passionate and excited about.
Fun. Challenging. Interesting

Community-sourced Elixir exercises

These are a few of the 94 exercises on the Elixir track. You can see all the exercises here.

Bank Account
medium
otp
Atbash Cipher
easy
encryption
Grep
easy
enumerations
strings
Hamming
easy
string processing
Rail Fence Cipher
medium
encryption
string processing
Parallel Letter Frequency
medium
concurrency
otp
Passionate. Knowledgeable. Creative.

Meet the Elixir Track maintainers

The Elixir Maintainers are the brains behind the Elixir 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 Devon Estes

Devon Estes

@elixir-lang developer. Maintainer of Muzak, @bencheeorg & the Elixir track at @exercism.
Avatar of Cohen Carlisle

Cohen Carlisle

I love Elixir for its productivity, elegant syntax, and functional nature. I've written it professionally and for fun. I hope to help people get excited about Elixir and learn some things myself, as well.
Avatar of Tim Austin

Tim Austin

Exercism has been a great way for me to stay current and expand my developer experience in new areas. I am excited to be working with the elixir track, because I appreciate the clarity/idiomaticity of the elixir language. I want others to enjoy this track as much as I have.

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

Join the Elixir Track