What is the difference between running my app with coffee vs compile it and the run it as javascript?

Currently, I'm running my app like this coffee app.coffee but I wonder if it would be a better choice to compile it to javascript and then run it like this node app.js.

Thanks

Running your app through the coffee command is fine, as your code is initially compiled to CoffeeScript before being run by Node. It's important to note that this happens up-front, and none of this parsing happens during runtime.