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

51 Mentors

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

14,676 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 Sean Handley

Sean Handley Website

I'm a remote developer based in Manchester. Ruby is my first love but increasingly I'm focussing on Elixir. The open source community means a great deal to me and I attend (and occasionally speak at) various technical conferences.
Avatar of Brian Underwood

Brian Underwood http://www.brian-underwood.codes

I'm a long-time full-stack web developer with a particular interest in different ways to store and process data. I'm a huge fan how Elixir makes functional programming and fault tolerance accessible and am excited to help others.
Avatar of Juan Pablo Lorenzo

Juan Pablo Lorenzo GitHub

Elixir was my first step in functional programming and since I started I am very surprised with this language, its community and the incredible capabilities that Elixir has to improve software development.
Avatar of Byron Anderson

Byron Anderson Byron's Programming Blog

Elixir is the language that I want to be using. Pattern matching + `with` + processes, oh my! It makes me excited to program again!
Avatar of CJ Ting

CJ Ting

I like Elixir for its awesome functional programming features and elegant syntax, it really makes programming enjoyable.
Avatar of Norbert Melzer

Norbert Melzer My Blog

I found about elixir on exercism and thaught it were just another ruby, dropped it because I haven't had classes, read more about it, felt in love and cut off my relationship with ruby (nearly).
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.

Hamming
easy
string processing
Gigasecond
easy
calendar
time
Parallel Letter Frequency
medium
concurrency
otp
RNA Transcription
easy
strings
Two Fer
easy
strings
Diamond
medium
algorithms
enumeration
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 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 Devon Estes

Devon Estes

Freelance senior developer into @elixir-lang.
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!

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