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

55 Mentors

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

17,356 Students

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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 Paulo Gonzalez

Paulo Gonzalez https://github.com/pdgonzalez872

I'm transitioning to using Elixir full time. I try to use it as much as I can on my free time as well. I'm excited to mentor folks starting out and can hopefully learn new things as well!
Avatar of Júlio Leitão

Júlio Leitão GitHub

Enjoying the Functional Programming paradigm to solve problems and build solutions with quality, maintainability, and great code design. Elixir is one of the best options on the FP world.
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 Felipe Juárez Murillo

Felipe Juárez Murillo https://github.com/sohjiro

Software Developer at http://bunsan.io/ also I am a gamer currently playing SC2 and Clash Royale. I love beer, anime, manga, music my kids and my wife
Avatar of Yeong Sheng, Tan

Yeong Sheng, Tan https://github.com/yeongsheng-tan

I chanced upon Elixir back in early 2014 when we were looking out for a replacement stack that is as pleasant and productive to work in as Ruby, while giving us the reliability and fault-tolerance of Erlang, without having to add too much external dependencies to scale out our Ruby stack product.
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.

D&D Character
easy
random
structs
Custom Set
medium
collections
enumeration
Anagram
easy
filter
enumeration
Minesweeper
medium
enumeration
reduce
algorithms
RNA Transcription
easy
strings
Scale Generator
medium
enumerations
string processing
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 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 Devon Estes

Devon Estes

@elixir-lang and Elixir developer. Maintainer of @bencheeorg & the Elixir track at @exercism.

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

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