Echo JS 0.11.0

Might seem fun or stupid reading stiff like this in spare time.
But I actually turned down a job offer once because they made tests similar to these. I actually did quite well, but when I asked why the f**k we're doing this, and the guy said something like "well this stuff happens in real code all the time, and a good programmer should be able to spot it"... Well. I believe he even said an "intelligent" programmer should spot it.

With at least somewhat decent developers, stuff like this does _not_ happen.
And if it actually does happen in a company or team, then i surely wouldn't want to work there :) But I'm pretty sure such tests or quizzes do not reveal much about a developer's quality in real software life.