Crystal

3 Mentors

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

845 Students

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

50 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

Exercism is a great website

The reviews are incredibly helpful because they help me see things that I missed, learn about new ways and sometimes interesting discussions that can add a fun twist to maybe a simple problem.

Bud Chirica, Scotland

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.