Sorry.

At first I was concerned due to a particular ESLint rule called "no-undefined", but then after looking more deeply into it, I realized using typeof was unnecessary since "no-global-assign" and "no-shadow-restricted-names" were enabled and thus the previous method surely would not cause any problems.

controllers/uploadController.js

@@ -98,7 +98,7 @@ uploadsController.actuallyUpload = async (req, res, userid, album) => {
             hash: fileHash,
             ip: req.ip,
             albumid: album,
-            userid: typeof userid !== 'undefined' ? userid.id : null,
+            userid: userid !== undefined ? userid.id : null,
             timestamp: Math.floor(Date.now() / 1000)
           })
         } else {