Question

I have a valid css class name like obj2
I want to use the parseInt() function which gives me: NaN
Now I want to change the position of the letters and numbers that I get: 2obj

How do I accomplish this?

Answer 1

Classes can’t start with a number.

But you can in JS:

var className = "obj2";
var number = className.replace("obj", "");

Now: number is String("2") and parseFloat(number) is Number(2)