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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

19,313 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 Jason Axelson

Jason Axelson GitHub

I am a fullstack web developer with experience in Ruby, Elixir, and Javascript (and wrote Java in a previous life). I love Elixir due to it's syntax (especially pattern matching) and the excellent concurrency primitives that it receives via Erlang and OTP.
Avatar of Peter Banjo

Peter Banjo website

I love functional programming and Elixir is an amazing language to work with. It takes some effort to adopt a new way of solving programming problems so let's share in the adventure.
Avatar of Abhyudit Jain

Abhyudit Jain GitHub

I've been working with mostly JavaScript professionally and do some personal projects in Elixir. I love the whole philosophy of Erlang/Elixir's `Let it crash`. I love all the abstactions it provides in OTP.
Avatar of Zach Banducci

Zach Banducci

I have been using Elixir for the past year and it has quickly become one of my favorite programming languages. Programming is supposed to be fun and Elixir is no exception. Elixir makes it easy to play around with concurrent programming and its applications are near endless.
Avatar of Chris Eyre

Chris Eyre https://devrantsblog.wordpress.com

I'm a long-time full-stack web developer in a range of languages. I mentor Elixir to allow me to teach and learn from the students.
Avatar of Yauheni Tsiarokhin

Yauheni Tsiarokhin

functional programming enthusiast
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.

Parallel Letter Frequency
medium
concurrency
otp
Poker
medium
sorting
Zipper
hard
structs
recursion
trees
algorithms
Armstrong Numbers
easy
algorithms
math
Rotational Cipher
easy
string processing
Dominoes
medium
algorithms
enumerations
recursion
sorting
trees
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 @bencheeorg & the Elixir track at @exercism.
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.
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.

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

Join the Elixir Track