URL aware of active tab

gistfile1.txt

$(() => {
  if (location.hash) {
      $("a[href='" + location.hash + "']").tab("show"); // go to tab when hash is present in the url
  }
  $(document.body).on("click", "a[data-toggle]", function(event) {
      location.hash = this.getAttribute("href"); // add hash to url when change tab
  });
});
$(window).on("popstate", function() { // make history navigation aware of anchor
    var anchor = location.hash || $("a[data-toggle='tab']").first().attr("href");
    $("a[href='" + anchor + "']").tab("show");
});