Answers for "jquery add class scroll to class"

onscroll add class jquery

$(window).scroll(function() {    
    var scroll = $(window).scrollTop();
    if (scroll >= 500) {
        $(".clearHeader").addClass("darkHeader");
    }
});

scroll to class jquery

var $container = $("html,body");
var $scrollTo = $('.saveIcon');

$container.animate({scrollTop: $scrollTo.offset().top - $container.offset().top + $container.scrollTop(), scrollLeft: 0},300);