Slight simplification

src/components/user/User.tsx

@@ -84,13 +84,12 @@ const User: Component<Props> = (props) => {
       return false;
     };
 
-    const addSubscriptionFactory =
-      (username: string) => (userDocument: any) => {
-        const subscriptions = userDocument.subscriptions || [];
-        subscriptions.push({ username, direction: '' });
-        userDocument.subscriptions = subscriptions;
-        return { username, ...userDocument };
-      };
+    const addSubscription = (userDocument: any) => {
+      const subscriptions = userDocument.subscriptions || [];
+      subscriptions.push({ username, direction: '' });
+      userDocument.subscriptions = subscriptions;
+      return { username, ...userDocument };
+    };
 
     const defaultUserDocument = {
       database,
@@ -101,7 +100,7 @@ const User: Component<Props> = (props) => {
       if (!isIn(subscription.username, subscriptions)) {
         update(
           userId(subscription.username, database),
-          addSubscriptionFactory(username),
+          addSubscription,
           defaultUserDocument
         );
         console.log({