moment/moment — pull request #1749 by ogonkov (2014-07-01 12:21:45+00:00)
Title: Rule for mixed quotes

Relaxed rules for single quote, but allow double quotes if it's required to avoid escaping.

Not a real issue, but my WebStorm mark moment files with a lot of errors.

Looks like single quote is preferable.
Just used CTRL+F via `moment.js`:
- Single quotes: 795
- Double quotes: 174