From cddeb2af7c7c5846c1cba3a303df5af9e1637a80 Mon Sep 17 00:00:00 2001
From: Micah Loffer <micah.loffer@gmail.com>
Date: Fri, 10 May 2019 15:01:21 -0700
Subject: [PATCH] Add safety check for MapService.mapInstance before attempting
 to remove

---
 projects/ngx-mapbox-gl/src/lib/map/map.service.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/projects/ngx-mapbox-gl/src/lib/map/map.service.ts b/projects/ngx-mapbox-gl/src/lib/map/map.service.ts
index 7811205d5..48d5f3779 100644
--- a/projects/ngx-mapbox-gl/src/lib/map/map.service.ts
+++ b/projects/ngx-mapbox-gl/src/lib/map/map.service.ts
@@ -107,8 +107,10 @@ export class MapService {
   }
 
   destroyMap() {
-    this.subscription.unsubscribe();
-    this.mapInstance.remove();
+    if(this.mapInstance) {
+      this.subscription.unsubscribe();
+      this.mapInstance.remove();
+    }
   }
 
   updateMinZoom(minZoom: number) {