jQuery Quantity script not working in quick view

Hello, I have made a jquery script that it is working on single product pages but for some reason it doesn’t work in Quick View using your plugin. Any idea why this isn’t working? The script is made for custom quantity buttons with the following code :

jQuery(function () {
    jQuery('.dd-add').on('click',function(e){
        var jQueryqty=jQuery('input.qty');
        var currentVal = parseInt(jQueryqty.val());
        if (!isNaN(currentVal)) {
            jQueryqty.val(currentVal + 1);
        }
    });
    jQuery('.dd-minus').on('click',function(e){
        var jQueryqty=jQuery('input.qty');
        var currentVal = parseInt(jQueryqty.val());
        if (!isNaN(currentVal) && currentVal > 0) {
            jQueryqty.val(currentVal - 1);
        }
    });
});