Add a function to code.js that checks if an object contains a nested property

Core/Bridge/TweetDeckBridge.cs

@@ -104,6 +104,13 @@ public void Alert(string type, string contents){
             MessageBox.Show(contents, Program.BrandName+" Browser Message", MessageBoxButtons.OK, icon);
         }
 
+        public void CrashDebug(string message){
+            #if DEBUG
+            Log(message);
+            System.Diagnostics.Debugger.Break();
+            #endif
+        }
+
         public void Log(string data){
             System.Diagnostics.Debug.WriteLine(data);
         }

Resources/Scripts/code.js

@@ -62,6 +62,22 @@
     };
   };
   
+  //
+  // Function: Returns true if an object has a specified property, otherwise returns false without throwing an error.
+  //
+  var ensurePropertyExists = function(obj, ...chain){
+    for(var index = 0; index < chain.length; index++){
+      if (!obj.hasOwnProperty(chain[index])){
+        $TD.crashDebug("Missing property "+chain[index]+" in chain [obj]."+chain.join("."));
+        return false;
+      }
+      
+      obj = obj[chain[index]];
+    }
+    
+    return true;
+  };
+  
   //
   // Function: Retrieves a property of an element with a specified class.
   //