square/crossfilter — pull request #15 by kiyoto (2012-03-30 21:15:42+00:00)
Title: Removing what appears to be an extraneous '+' operator.

I noticed there are two +'s in crossfilter_reduceAdd function in src/reduce.js function. Is this intended? If so, I would like to know the reason behind it (maybe some JS quirks).