Hi,
Are there any differences between single and double quotes in javascript?
+5
A:
No, is the right answer most of the time. However if you want to write valid JSON, then you should use double quotes for object literals.
apphacker
2009-02-18 03:43:37
+2
A:
One is slightly wider, so you may have a few extra characters disappear to the right (as opposed to the slimmer version) in your favourite IDE.
Seriously though, I always use ', because if I need to quote a HTML element attribute, I always use " and I can't be bothered escaping like so
var html = "<a href=\"http://www.example.com\">hello</a>"
alex
2009-02-18 03:44:39
+1 to offset the -1. I laughed (well, on the inside anyway).
Ray
2009-02-18 03:57:15
yeah, i'd upvote it too, but you must be severely punished by suggesting (even as a joke) to use proportional fonts for programming. (it's sometimes forgivable for comments, _never_ for code)
Javier
2009-02-18 04:03:43
Haha, :) Fixed width font is the only way to go!
alex
2009-02-18 04:26:27
+3
A:
No, except in double quotes you can put single quotes.
e.g. "Don't not do this"
And in single quotes you can put double quotes.
e.g. 'John said "Do this"'
Ray
2009-02-18 03:46:48
**except** that both your sentences say the same thing. *Don't not do this* is a double negative :)
Anurag
2010-04-23 02:41:38
+2
A:
No difference. Just make sure you close the string with whatever you open it with.
Much more sensible to me than other languages (looking at you, C# and PHP...) where single quoted strings are either character literals, or don't expand escaped characters.
Triptych
2009-02-18 03:49:03
+1
A:
you should use " always unless in an element..
<button onclick="dosomething(\"test\")">Test</button> Wont work
<button onclick="dosomething("test")">Test</button> Wont work
<button onclick="dosomething('test')">Test</button> will work
JamesM
2010-07-12 09:29:06