rvagg/goingnative — pull request #26 by jclulow (2014-07-04 17:20:34+00:00)
Title: describe returning a value via NanReturnValue

It's not immediately obvious that to return a value, the NAN helper you want is `NanReturnValue()`. In the exercise about creating the `length()` method, which returns a `number`, we should call it out explicitly.