anchor.diff:        });
       }
   
  +
  +    var marker = new google.maps.Marker({
  +      position: dropLatLong,
  +      icon: icon,
  +      map: map,
  +    });
  +
       // $(".find-drops").on("click", function(event) {
       //   event.preventDefault();
       //   // read city input field
  
positive.code:     <script type="text/javascript">
      var map;
  
      function initMap() {
        changeMap(52.520, 13.409);
      }
  
negative.code:     //   // change map with new lng, lat
      //   changeMap(4.6482837, -74.2478959);
      // });
  
      </script>
      <script async defer
  