how to sho the active navigation ling using javascript

1   <script src="https://code.jquery.com/jquery-3.3.1.js"></script>
2   <script>
3   $(document).ready(function() {
4
5            var CurrentUrl= document.URL;
6            var CurrentUrlEnd = CurrentUrl.split('/').filter(Boolean).pop();
7            console.log(CurrentUrlEnd);
8            $( "#lu-ID li a" ).each(function() {
9                  var ThisUrl = $(this).attr('href');
10                  var ThisUrlEnd = ThisUrl.split('/').filter(Boolean).pop();
11
12                  if(ThisUrlEnd == CurrentUrlEnd){
13                  $(this).closest('li').addClass('active')
14                  }
15            });
16
17   });
18