Use CoffeeScript. Even after all the work that TC39 put into ES6/ES2015, it's still not nearly as well done or helpful as CoffeeScript is. You'll be going aga

Use CoffeeScript. Even after all the work that TC39 put into ES6/ES2015, it's still not nearly as well done or helpful as CoffeeScript is. You'll be going against all of the "cool kids" by rejecting ES6, but you'll also be much more productive and happier.