CoffeeScript

Join the CoffeeScript Track
CoffeeScript is a language that compiles into JavaScript. It uses an alternative syntax to the Java-like syntax of JavaScript, and is one of many new transpiled languages used in web development.
Track mentors

2 Mentors

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

409 Students

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

21 Exercises

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

About CoffeeScript

CoffeeScript is a language which transpiles into JavaScript, used for making dynamic websites (both in the web browser, and on the server). The transpiler is used to transform CoffeeScript code into JavaScript before running, to keep compability and the same performance of JavaScript while providing many new features!

CoffeeScript was created to provide a simplified way to write JavaScript, based on a blend of the Ruby and Python languages. One difference is the use of indentation and arrows to replace JavaScript's verbose function code, and introduces useful features from functional languages including pattern matching.

CoffeeScript is one of many new languages that transpiles to JavaScript, including TypeScript and Flow - the community is growing, and these types of languages are very popular.

Join the CoffeeScript track
class HelloWorld
  hello: (name = 'World') ->
    "Hello, #{name}!"
module.exports = HelloWorld

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.

Relaxed. Encouraging. Supportive.

Meet the CoffeeScript Track mentors

Once you join the CoffeeScript 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 Steven Atkinson

Steven Atkinson https://github.com/mrstebo

From discovering Coffeescript during my time learning Ruby on Rails, to loving it. I've been using Coffeescript to build personal projects for over 4 years now.
Avatar of Ryan Boris

Ryan Boris GitHub

I have written CoffeeScript as part of various JS frameworks, open source projects, and profesionally. I've also taught CoffeeScript via webinar and tutorials that were part of my weekly dev-based webcast. Please feel free to ask me any questions!
Fun. Challenging. Interesting

Community-sourced CoffeeScript exercises

These are a few of the 21 exercises on the CoffeeScript track. You can see all the exercises here.

Luhn
easy
algorithms
arrays
integers
pattern recognition
Hello World
easy
conditionals
control flow if statements
optional values
text formatting
Pascals Triangle
easy
algorithms
arrays
integers
math
Anagram
easy
sorting
strings
text formatting
Nucleotide Count
easy
filtering
maps
strings
Palindrome Products
easy
arrays
integers
math

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

Join the CoffeeScript Track