how to get the base url in javascript

Question

I am building a website with CodeIgniter, I have various resources that I load with the base_url helper function like this

Answer 1

This is done simply by doing this variable.

var base_url = ''

This will have base url now. And now make a javascript function that will use this variable

function base_url(string){
    return base_url + string;
}

And now this will always use the correct path.

var path    =   "assets/css/themes/" + color_ + ".css"
$('#style_color').attr("href", base_url(path) );