Manipulasi Dropdown

$('select[name="id_ssh"]').on('change', function() {
      var id_ssh = $(this).val();
      if(id_ssh) {
          $.ajax({
              url: '<?php echo base_url("econtrolling_users/get_harga/") ?>'+id_ssh,
              type: "GET",
              dataType: "json",
              success:function(data) {
                  $('select[name="harga"]').empty();
                  $.each(data, function(key, value) {
                      $('select[name="harga"]').append('<option value="'+ value.id_ssh +'">'+ formatNumber(value.harga)+'</option>');
                  });
              }
          });
      }else{
          $('select[name="harga"]').empty();
      }
  });

  $('select[name="id_ssh"]').on('change', function() {
      var id_ssh = $(this).val();
      if(id_ssh) {
          $.ajax({
              url: '<?php echo base_url("econtrolling_users/get_satuan/") ?>'+id_ssh,
              type: "GET",
              dataType: "json",
              success:function(data) {
                  $('select[name="satuan"]').empty();
                  $.each(data, function(key, value) {
                      $('select[name="satuan"]').append('<option value="'+ value.id_ssh +'">'+ value.satuan+'</option>');
                  });
              }
          });
      }else{
          $('select[name="satuan"]').empty();
      }
  });