Github user corneadoug commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/126#issuecomment-116366266
The description is a bit misleading I guess.
But, code Improvement is always welcome.
I see that you fixed some coding style problems and refactored some code to
make it smaller.
I actually didn't know about the double ! operator:
http://stackoverflow.com/questions/784929/what-is-the-not-not-operator-in-javascript
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