Update const.js

src/utils/const.js

@@ -9,13 +9,20 @@ const MUNICIPALITY_CITIES_ARR = [
   '香港特别行政区',
   '澳门特别行政区',
 ];
+const MAP_LAYER_LIST=['road-label',  'waterway-label',  'natural-line-label',  
+                      'natural-point-label',  'water-line-label',  'water-point-label',  
+                      'poi-label',  'airport-label',  'settlement-subdivision-label',  
+                      'settlement-label',  'state-label',  'country-label',
+                     ];
 
 // styling: set to `true` if you want dash-line route
 const USE_DASH_LINE = true;
 // styling: route line opacity: [0, 1]
 const LINE_OPACITY = 0.4;
 // styling: map height
 const MAP_HEIGHT = 600;
+//set to `false` if you want to hide the road label characters
+const ROAD_LABEL_DISPLAY = true;
 
 // IF you outside China please make sure IS_CHINESE = false
 const IS_CHINESE = true;
@@ -56,7 +63,9 @@ export {
   CHINESE_LOCATION_INFO_MESSAGE_SECOND,
   MAPBOX_TOKEN,
   MUNICIPALITY_CITIES_ARR,
+  MAP_LAYER_LIST,
   IS_CHINESE,
+  ROAD_LABEL_DISPLAY,
   INFO_MESSAGE,
   RUN_TITLES,
   USE_ANIMATION_FOR_GRID,