After a few months of CoffeeScript development I vastly prefer it to JavaScript. Jeremy, et. al., have done a beautiful job with it. I've used Sass/Less as well

After a few months of CoffeeScript development I vastly prefer it to JavaScript. Jeremy, et. al., have done a beautiful job with it. I've used Sass/Less as well and believe the JavaScript/CoffeeScript divide is even more valuable. Edit: I wrote about some of my favorite features of CoffeeScript when we added CoffeeScript support to our CMS app HiFi... http://www.gethifi.com/blog/hosted-cms-coffeescript-support http://www.gethifi.com/blog/hosted-cms-coffeescript-support tl;dr: 1) Lightweight function declarations (with default values!) 2) Implicit Returns 3) Everything is an Expression 4) Object Literal YAML-like syntax 5) Simple, Classical OO Features (you don't have to use them and can still directly access prototypal features, too) 6) (Not in the post) Binding 'this' to the scope's 'this' using => is awesome.