Exercism v3 launches on Sept 1st 2021. Learn more! 🚀🚀🚀


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Raku is a production ready new emerging language that is highly expressive, feature-packed and optimized for fun.
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Track mentors

3 Mentors

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

573 Students

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

30 Exercises

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

About Raku

say my $candidates = all
  «Alphabet subdermatoglyphic
  ‘Emily Jung Schwartzkopf’».pick: 2;

say “All isograms? {.so ?? ‘✔’ !! ‘❌’}”
  given is-isogram($candidates);

sub is-isogram (Str $_ --> Bool) {
  .uc.comb(/<:L>/).Bag ⊆ 'A'..'Z' }

Raku (formerly known as Perl 6) is a clean, modern, multi-paradigm language; it offers procedural, object-oriented AND functional programming methodologies. It is a supremely flexible language, adapting to your style of programming, whether that be quick one­liners for sysadmins, scripts to manage a database import, or the full stack of modules necessary to realise an entire website.

Raku enhances Perl’s long­term appeal with a proper object system including roles, threading and multi­method dispatch. It has spent a long time coming to fruition and has learned from other programming languages, building on their success and learning from the issues of the past. We believe Raku is a language that will last for decades as it has been conceived to adapt to future trends and is flexible in its usage with other languages.

Raku learns from other languages. For instance: taking threading from Java (simplified to a handful of methods); Foreign-function interfaces from Lisp make accessing libraries as simple as one line of code. Regular expressions are now turned up to 11 with the introduction of Parser Expression Grammars, which let you tackle huge parsing tasks. Strictures and warnings are now automatic, cutting out huge swathes of potential errors.

Raku’s mottos remain the same as Perl: “Perl is different. In a nutshell, Perl is designed to make the easy jobs easy, without making the hard jobs impossible.” and “There Is More Than One Way To Do It”. Now with even more -Ofun (optimized for fun) added.

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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.

Relaxed. Encouraging. Supportive.

Meet the Raku Track mentors

Once you join the Raku 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 Doug Schrag

Doug Schrag https://github.com/dmaestro

A Perl programmer for several decades, I am now promoting Perl 6 for the same reason. It's a full toolkit for solving almost any problem. I've learned quite a few things, let's learn some more together!
Avatar of mienaikage


A Raku enthusiast who loves the language for its combination of power, conciseness, and flexibility.
Avatar of Victor Goff

Victor Goff https://github.com/kotp

Find me mentoring in person or online. Everyone starts somewhere! Contact me to pair program!
Fun. Challenging. Interesting

Community-sourced Raku exercises

These are a few of the 30 exercises on the Raku track. You can see all the exercises here.

Nucleotide Count
All Your Base
Word Count
Grade School
Passionate. Knowledgeable. Creative.

Meet the Raku Track maintainers

The Raku Maintainers are the brains behind the Raku 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 Daniel Mita

Daniel Mita dango.space

My first adventure in coding was creating userscripts by trial and error (many errors...). Somewhere down the line I accidentally found myself employed in my first coding role as a Perl developer, after attempting pair programming in Haskell.

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

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