Steve Mao

This is probably not the best example. Those array functions have to use a callback because there's no other way to do it. I think sync functions should avoid callback....

Is this problem solved?

Can you try using `\\n`?

Apparently travis does not like newline `$'\n'` https://github.com/travis-ci/travis-ci/issues/4061 Have to use `child.exec` for now :(

I like this. PR welcome :)

PR welcome

PR welcome

They are "Proofs of Concepts" and you should think twice before you write something like this in real projects.

Up to you. But I don't think there's anything wrong with the sentence...

We can add a comment based on @jreese802 's suggestion. PR welcome.