Andy Wingo (2014-06-13T08:08:53.000Z)
domenic at domenicdenicola.com (2014-06-17T20:47:24.607Z)
It is tough to know what you are asking without an example. If you would like to try it yourself, Firefox 30 has comprehensions as currently specified. It seems likely comprehensions get punted, though (not that I think this is the right thing ;).