If you want to give CoffeeScript a try, you can test it out at CoffeesScript.org, where you’ll also find installation instructions and documentation. If you have npm installed, you can install CoffeeScript like so:
sudo npm install -g coffee-script
If you don’t have npm or want to use CoffeeScript in a different way, check the CoffeeScript website for more usage instructions.
One of the things that makes Jasmine specs look nice in CoffeeScript is the language’s optional parentheses. The following two lines are equivalent in CoffeeScript:
alert("Hello world!") alert "Hello world!"
it are just functions, you can write nice-looking specs that don’t have as many brackets and parentheses. ...