From 4c454e6f934936e8cda36ed1582873bcf6b57957 Mon Sep 17 00:00:00 2001
From: ccd0 <admin@containerchan.org>
Date: Thu, 4 Apr 2019 01:23:43 -0700
Subject: [PATCH] Use typeof for checking if === undefined.

---
 src/classes/DataBoard.coffee | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/classes/DataBoard.coffee b/src/classes/DataBoard.coffee
index b06d961d9..ddb7c621f 100644
--- a/src/classes/DataBoard.coffee
+++ b/src/classes/DataBoard.coffee
@@ -89,7 +89,7 @@ class DataBoard
     @save =>
       oldVal = @get {siteID, boardID, threadID, postID, defaultValue: {}}
       for key, subVal of val
-        if subVal is undefined
+        if typeof subVal is 'undefined'
           delete oldVal[key]
         else
           oldVal[key] = subVal