what's the meaning of the follow syntax var: " div:nth-child(" + $n + ")"?

Question

More specifically, why do I need the + sign on both sides of my variable ? Here there is an example , for more context of what I'm asking: link

documentation [here](https://api.jquery.com/nth-child-selector/) read about it — guradio, Jul 12 '16 at 09:03
`why do I need the + sign on both sides of my variable?` because you're concatenating a string. — Rory McCrossan, Jul 12 '16 at 09:10

score 0 · Answer 1 · answered Jul 12 '16 at 09:09

0

You're effectively defining a CSS selector, see docs.

The selector must be a string, $n here is a variable and the + signs concatenate (join together) the string and the variable.

answered Jul 12 '16 at 09:09

robstarbuck

score 0 · Answer 2 · edited May 23 '17 at 11:58

0

+ operator use for concat two string in javascript and jQuery

Example:

var a = 'Avanish';
var b = a+' Kumar';
console.log('Value of a---->'+a);
console.log('Value of b---->'+b);

output is

 Value of a---->Avanish
 Value of b---->Avanish Kumar

edited May 23 '17 at 11:58

Community

answered Jul 12 '16 at 09:22

Avanish Kumar

2 Answers2