Echo JS 0.11.0

> `typeof` can return one of the following eight possible values:
>
> * date
> * unknown

You're kidding me, right?

I feel like this is an upgrade if replaced by just a link to the MDN documentation.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/typeof

Considered a bug in the language? Hmmm :)

He forgot symbol