I agree -- CoffeeScript is the best way to write JavaScript right now. I very recently had a great experience writing a mobile web application using it, and I'm pleased that it's now an official part of Rails.
Like most languages at 1.0, though, it has some growing to do. I still find myself needing to dive down into the compiled JavaScript to make sure it's doing what I think it's doing in some unclear situations (nested data structures we used in our tests, for example). I've seldom found a need to take similar actions in more mature languages and I'm sure that will improve as CoffeeScript development continues.
I warmly welcome any tool that makes my life as a developer easier or more enjoyable (CoffeeScript does both) and I hope its success continues to inspire the growth of client-side web development languages.
Like most languages at 1.0, though, it has some growing to do. I still find myself needing to dive down into the compiled JavaScript to make sure it's doing what I think it's doing in some unclear situations (nested data structures we used in our tests, for example). I've seldom found a need to take similar actions in more mature languages and I'm sure that will improve as CoffeeScript development continues.
I warmly welcome any tool that makes my life as a developer easier or more enjoyable (CoffeeScript does both) and I hope its success continues to inspire the growth of client-side web development languages.