cleanup queue on unmount

Author: Soxasora

components/use-live-comments.js

@@ -37,6 +37,13 @@ export default function useLiveComments (rootId, after, sort) {
     setLatest(prevLatest => getLatestCommentCreatedAt(data.newComments.comments, prevLatest))
     console.log('latest', latest)
   }, [data, client, rootId, sort])
+
+  // cleanup queue on unmount to prevent memory leaks
+  useEffect(() => {
+    return () => {
+      queue.current = []
+    }
+  }, [])
 }
 
 // the item query is used to update the item's newComments field