How to subtract text with jQuery

Question

How can I subtract text with jQuery?

I tried to use minus to delete the text, but it doesn't work.

var coluna = $('.coluna').css('width');

In this line, the value outputted is "300px", and I want to remove "px" to get just the number 300.

Answer 1

instead of using

var coluna = $('.coluna').css('width');

(Which returns a string)

use this:

var coluna = $('.coluna').width();

(Which returns an integer)

---

If you ever find yourself needing to actually split strings, take a look at substring()