style: fix missing type annotation

mapbox · Oct 20, 2021 · 40caf81 · 40caf81
1 parent 4ff181b
commit 40caf81
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/ui/control/geolocate_control.js b/src/ui/control/geolocate_control.js
@@ -160,7 +160,7 @@ class GeolocateControl extends Evented {
         this._noTimeout = false;
     }
 
-    _checkGeolocationSupport(callback) {
+    _checkGeolocationSupport(callback: (supported: boolean) => any) {
         if (this._supportsGeolocation !== undefined) {
             callback(this._supportsGeolocation);
         } else if (window.navigator.permissions !== undefined) {