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

50 Mentors

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

13,169 Students

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

92 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 Alexis Brodeur

Alexis Brodeur https://github.com/brodeuralexis

I've been an avid Elixir user for over 2 years. It is the language I want to be using professionally. Everyone I know knows about my passion for Elixir, which is why they call me Alexir
Avatar of Olaoluwa Oluro

Olaoluwa Oluro https://github.com/ollaollu

I love Elixir because of it's explicitness and oh the pattern matching is amazing.
Avatar of Todd Resudek

Todd Resudek https://github.com/supersimple

I am happy to help. I have been working professionally in Elixir since January 2018 and have presented at Empex, ElixirDaze, and ElixirConf 2018.
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 Alessandro Mencarini

Alessandro Mencarini amencarini.com

I've been working in web and API development for a while, mainly writing Ruby and Elixir. I like, among others: simple code, good music, tasty food.
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.
Fun. Challenging. Interesting

Community-sourced Elixir exercises

These are a few of the 92 exercises on the Elixir track. You can see all the exercises here.

Grade School
easy
maps
Atbash Cipher
easy
encryption
Forth
hard
parsers
Diffie Hellman
medium
math
Armstrong Numbers
easy
algorithms
math
Protein Translation
easy
pattern matching
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 Devon Estes

Devon Estes

Freelance senior developer into @elixir-lang.

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