Actually these new SSJS engines such GoogleV8 and other such as JAXER
Bring a entire new way of building robust webapp/desktop app/ mobile app like it has never been built before...

For those that love   Google GWT=Java_To_Javascript and dislike verbosity of Java,
there is PyJamas ... Google GWT=Python_To_Javascript

JS today is not the same it was years ago or even months ago.

-E