How to correctly insert a variable in css?

Question

JavaScript

Good day.
There is this code:

$('.color-box-yellow').click(function(){
    $('.center-bg__box').css('background-image','url("img/shape_2.png")');
});

How to put a variable in 'url("img/shape_2.png")' instead of an image, like ${background}

Answer 1

let bg = 'shape_2.png';
$('.color-box-yellow').click(function(){
$('.center-bg__box').css('background-image', `url("img/${bg}")` ) ;
});
where the url is, put back quotes instead of single ones