🎉 Exercism Research is now launched. Help Exercism, help science and have some fun at research.exercism.io 🎉
Sign up Log in

Erlang

Join the Erlang Track
Erlang is a functional language, designed for use in real-time distributed systems. It's used within telecom networks, and is notable for simple message passing with lightweight independent processes.
Join the Erlang Track
Track mentors

8 Mentors

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

2,565 Students

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

77 Exercises

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

About Erlang

-module(example).
-export([hello/0]).

hello() ->
  "Hello, World!".

Erlang is a functional programming language, used for creating real-time distributed systems, which can easily scale in size.

It's best for concurrent applications, such as instant messaging and banking platforms, as each function call has their own process and operates independently. This is useful as code can run for a very long time without issues occuring. Also, processes and message passing are all built into the language by default - no need for any extra libraries!

It was designed within Ericsson, a Swedish telecommunications company, for use in their networks, and is currently used inside telecommunication equipment.

Join the Erlang track

A tremendous learning opportunity to explore the depth of your own knowledge

Exercism is fantastic in learning new languages but that is not the extent of it. If you are a "more experienced" programmer you may have encountered impostor syndrome: the idea you don't really know what you think you know. Exercism lets you solve problems and put them in the space of open feedback which is a tremendous learning opportunity to explore the depth of your own knowledge. Even if you have been programming in a language for awhile it is worth checking into Exercism to see where you stand with current implementation practices.

Tom Leen, Portland
Relaxed. Encouraging. Supportive.

Meet the Erlang Track mentors

Once you join the Erlang 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 Vladislav Promzelev

Vladislav Promzelev https://github.com/rutaka-n

I'm a software engineer. I develop high load systems with erlang/otp and elixir. Also I have experience with ruby and some other programming languages.
Avatar of Brujo Benavides

Brujo Benavides About Me

Erlang developer and trainer for almost 15 years. Currently based in Spain.
Avatar of Jan Uhlig

Jan Uhlig https://github.com/juhlig

Having learned Erlang out of interest several years ago, I have been using it in several private and business projects since.
Avatar of Shankar Shastri

Shankar Shastri GitHub Profile

Lover Of Pure Functional Programming.
Avatar of Shanti C

Shanti C https://github.com/shantiii

I've written a lot of Erlang and Elixir for previous jobs. I've even contributed to the languages! Now I get paid a lot to be sad about PHP, but my love for Erlang will never die.
Avatar of Brandon Gottlob

Brandon Gottlob Blog

After learning Erlang a few years ago, I became interested in building reliable, fault-tolerant systems. I hope to introduce others to Erlang and help spark their interests as well!
Fun. Challenging. Interesting

Community-sourced Erlang exercises

These are a few of the 77 exercises on the Erlang track. You can see all the exercises here.

Variable Length Quantity
medium
bitwise operations
integers
transforming
Darts
easy
control flow conditionals
math
Space Age
easy
time
Nucleotide Count
easy
parsing
strings
Secret Handshake
easy
control flow conditionals
pattern matching
strings
Raindrops
easy
control flow conditionals
pattern matching
strings
Passionate. Knowledgeable. Creative.

Meet the Erlang Track maintainers

The Erlang Maintainers are the brains behind the Erlang 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 Norbert Melzer

Norbert Melzer

Found out about erlang via exercism, got hooked by its lightweight processes and how they are used as first class citizen. After fixing some trivial bugs in the track, I have been added to the team.

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

Join the Erlang Track