Answers for "navigation change a color when scroll javascript"

javascript on scroll change nav color

$(function () {
  $(document).scroll(function () {
    var $nav = $(".navbar-fixed-top");
    $nav.toggleClass('scrolled', $(this).scrollTop() > $nav.height());
  });
});

change nav color on scroll vanilla js

if (document.body.scrollTop >= 280 || document.documentElement.scrollTop >= 280) {