Added check for eventhandler

Author: danvass

lib/firestack.js

@@ -67,7 +67,7 @@ export class Firestack {
     })
   }
 
-  /** 
+  /**
    * Wrappers
    * We add methods from each wrapper to this instance
    * when they are needed. Not sure if this is a good
@@ -108,7 +108,7 @@ export class Firestack {
   //   return promisify('setStorageUrl')(url);
   // }
 
-  
+
 
   // other
   get ServerValue() {
@@ -173,9 +173,9 @@ export class Firestack {
 
   off(name) {
     if (this.eventHandlers[name]) {
-      this.eventHandlers.forEach(subscription => subscription.remove());
+      (this.eventHandlers || []).forEach(subscription => subscription.remove());
     }
   }
 }
 
-export default Firestack
+export default Firestack

lib/modules/database.js

@@ -225,7 +225,9 @@ class DatabaseRef {
     if (this.dbFilters.length > 0) {
       arr = arr.concat(this.dbFilters);
     }
-    this.dbSort = null; this.dbFilters = []
+    
+    this.dbSort = null;
+    this.dbFilters = [];
     return arr;
   }
 }