bail out early if memoizedState didn't change

facebook · Jan 29, 2021 · 5c24bb5 · 5c24bb5
1 parent 77ed727
commit 5c24bb5
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/packages/react-devtools-shared/src/backend/renderer.js b/packages/react-devtools-shared/src/backend/renderer.js
@@ -1109,9 +1109,9 @@ export function attach(
  const nextMemoizedState = next.memoizedState;
 
  if (isEffect(prevMemoizedState) && isEffect(nextMemoizedState)) {
- return !areHookInputsEqual(
- nextMemoizedState.deps,
- prevMemoizedState.deps,
+ return (
+ prevMemoizedState !== nextMemoizedState &&
+ !areHookInputsEqual(nextMemoizedState.deps, prevMemoizedState.deps)
  );
  }
  return nextMemoizedState !== prevMemoizedState;