From 4e77aebc17d407c2d503fc1b3fc128689dc6fb36 Mon Sep 17 00:00:00 2001
From: Nicolas Gallagher <nicolasgallagher@gmail.com>
Date: Thu, 8 Apr 2021 17:19:05 -0700
Subject: [PATCH] Fix flow error in useEvent

---
 .../src/modules/useEvent/index.js                | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/packages/react-native-web/src/modules/useEvent/index.js b/packages/react-native-web/src/modules/useEvent/index.js
index 024dbd14..945b0d99 100644
--- a/packages/react-native-web/src/modules/useEvent/index.js
+++ b/packages/react-native-web/src/modules/useEvent/index.js
@@ -32,7 +32,7 @@ export default function useEvent(
 ): AddListener {
   const targetListeners = useStable(() => new Map());
 
-  let addListener = useStable(() => {
+  const addListener = useStable(() => {
     const addEventListener = createEventHandle(event, options);
     return (target: EventTarget, callback: Callback) => {
       const removeTargetListener = targetListeners.get(target);
@@ -50,16 +50,12 @@ export default function useEvent(
 
   useLayoutEffect(() => {
     return () => {
-      if (addListener != null) {
-        targetListeners.forEach((removeListener) => {
-          removeListener();
-        });
-        targetListeners.clear();
-      }
-      addListener = null;
+      targetListeners.forEach((removeListener) => {
+        removeListener();
+      });
+      targetListeners.clear();
     };
-  }, [addListener]);
+  }, []);
 
-  // $FlowFixMe
   return addListener;
 }