why “Single-quoted string preferred over double-quoted string.” in js?

Question

While using gjslint, I got a hint: \"Single-quoted string preferred over double-quoted string\".

So why? I\'m a little confused with this. Why single-quoted preferred?

Answer 1

In terms of performance, according with http://jsperf.com you get almost the same performance for both in some browsers, in others you get the same performance.

There's a lot of tests in jsperf and all of them get almost the same result:

• http://jsperf.com/double-or-simple-quote
• http://jsperf.com/quotes-compare
• http://jsperf.com/jquery-double-vs-single-quotes
• http://jsperf.com/search?q=quote

In conclusion I think using single or double quotes is just a matter of taste and not a matter of performance.

Regards.