I feel a lot of folks are not mentioning a huge thing CoffeeScript is valuable for - its list comprehensions and proper for-each. JS has them too as part of ES5

I feel a lot of folks are not mentioning a huge thing CoffeeScript is valuable for - its list comprehensions and proper for-each. JS has them too as part of ES5 spec, but CS still is an elegant solution. It creates a whole new way to speak code, like in Ruby, Python and others. Syntax, variable niceties are great too, of course, but do not define CS alone.