Coffeescript is also great for being terser, making it dead simple to create classes (with executable bodies like ruby) and setup prototype inheritence, for com

Coffeescript is also great for being terser, making it dead simple to create classes (with executable bodies like ruby) and setup prototype inheritence, for comprehensions, for each iterations, and pattern matching. Also, the generated javascript code is very easy to read. I've replaced all my JS for coffee for 3 months (even making a firefox plugin with it) and never looked back.