plated/ruby-style-guide — pull request #2 by rickmzp (2014-07-15 14:45:39+00:00)
Title: Use double quotes if single quotes are not needed

Per the offline discussion we had the other day:

* Double quotes handle a large majority of situations, so defaulting to single quotes makes code costlier to change.
* There is no performance penalty for using double-quotes without interpolation.