refactor: better ts

Author: posva

src/globals.ts

@@ -12,17 +12,16 @@ const scopeMap = new WeakMap<FirebaseApp, EffectScope>()
  * @returns
  */
 export function getGlobalScope(app: App, firebaseApp: FirebaseApp) {
-  let scope: EffectScope | undefined
   // we use the firebaseApp as a key because we are more likely to have access to it and it's supposed to be also unique
   // per app since it contains user data.
   if (!scopeMap.has(firebaseApp)) {
-    scope = effectScope(true)
+    const scope = effectScope(true)
     scopeMap.set(firebaseApp, scope)
     const { unmount } = app
     // dispose up the scope when the app is unmounted
     app.unmount = () => {
       unmount.call(app)
-      scope!.stop()
+      scope.stop()
       scopeMap.delete(firebaseApp)
     }
   }