Is there any difference between $("something") and $('something')?

Question

I find $("#something") and $('#something') in my project script. I am really confused trying to know the difference, if any.

Please help me clarify this.

And, also what is the use of # here? Is it must to specify that it is the id of an element?

The difference is, that you can write " in '' and ' in "", that is the only one. — Knerd, Jun 13 '13 at 21:42
I think you should really look at a jquery tutorial. Seems like jquery to me. Yes, the # is for id. No real difference between the " and ' in this case. javascript uses both for strings. — Jerry Saravia, Jun 13 '13 at 21:42

score 2 · Answer 1 · answered Jun 13 '13 at 21:42

Assuming that $ is jQuery, then # is needed to specify the ID(jQuery uses Sizzle which parses string selectors as CSS selectors), and there is no true difference between using ' or " to define a string, in Javascript.

In a language like C# ' defines a char while " defines a string.

score 1 · Answer 2 · answered Jun 13 '13 at 21:43

Difference between $(“something”) and $('something')

There is no difference between these two things at all in Javascript. They are identical; the choice of which type of quote to use is entirely at the discretion of the programmer. (sometimes if makes a difference if the string contains a quote mark, but that doesn't apply here).

And, also what is the use of # here? Is it must to specify that it is the id of an element?

Yes, that's exactly what it is. It selects an element with the specified ID. It's the same syntax used in CSS.

Is there any difference between $("something") and $('something')?

2 Answers2