Crystal

Join the Crystal Track
TODO: The maintainers have not provided a description for this track.
Join the Crystal Track
Track mentors

1 Mentor

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

400 Students

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

24 Exercises

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

About Crystal

class HelloWorld
  def self.hello(name = "World")
    "Hello, #{name}!"
  end
end

Crystal is a compiled language that is currently in the alpha stages of development. These are some of the language's goals:

  • Ruby-inspired syntax.

  • Statically type-checked but without having to specify the type of variables or method arguments.

  • Be able to call C code by writing bindings to it in Crystal.

  • Have compile-time evaluation and generation of code, to avoid boilerplate code.

  • Compile to efficient native code.

Join the Crystal 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.

Relaxed. Encouraging. Supportive.

Meet the Crystal Track mentors

Once you join the Crystal 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 Todd Resudek

Todd Resudek https://github.com/supersimple

I am happy to help. Crystal is a beautiful language that is also very fast.
Fun. Challenging. Interesting

Community-sourced Crystal exercises

These are a few of the 24 exercises on the Crystal track. You can see all the exercises here.

Flatten Array
easy
misc
RNA Transcription
easy
misc
Pangram
easy
misc
Largest Series Product
easy
math
Triangle
easy
misc
Raindrops
easy
misc

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

Join the Crystal Track