lint issues

frontend-js/src/main/js/map/marker/AbstractMarker.js

@@ -75,7 +75,6 @@ AbstractMarker.prototype.show = function () {
     logger.warn("Marker is already shown");
   } else {
     this.getGoogleMarker().setMap(this.getCustomMap().getGoogleMap());
-    return;
   }
 };
 AbstractMarker.prototype.hide = function () {
@@ -87,14 +86,13 @@ AbstractMarker.prototype.hide = function () {
     logger.warn("Marker is already invisible");
   } else {
     this.getGoogleMarker().setMap(null);
-    return;
   }
 };
 
 /**
  * Returns {@link AbstractCustomMap} where marker is located.
  *
- * @returns {@link AbstractCustomMap} where marker is located
+ * @returns AbstractCustomMap where marker is located
  */
 AbstractMarker.prototype.getCustomMap = function () {
   return this._map;
@@ -105,17 +103,15 @@ AbstractMarker.prototype.setCustomMap = function (map) {
 };
 
 /**
- * Returns {@link google.maps.Bounds bounds} of the marker (it's a single
- * point).
+ * Returns google.maps.LatLngBounds of the marker (it's a single point).
  *
- * @returns {@link google.maps.Bounds bounds} of the marker (it's a single
- *          point)
+ * @returns google.maps.LatLngBounds bounds of the marker (it's a single point)
  */
 AbstractMarker.prototype.getBounds = function () {
   var marker = this.getGoogleMarker();
   if (marker === undefined || marker === null) {
     logger.warn("Marker not initialized");
-    return;
+    return null;
   }
   var bounds = new google.maps.LatLngBounds();
   bounds.extend(marker.position);