Ha that's closer than I would have expected.

Personally I don't like the extra space it looks like a typo to me :). But that's not based on anything specific. I think the extra space is something Douglas Crockford recommends [1].

Interestingly I see jshint is deprecating the whitespace setting [2] due to there not being clear documentation on it.

[1] http://javascript.crockford.com/code.html
[2] http://www.jshint.com/docs/options/#white