From a92fd478a3c1891ac374ebe5e6c8b3c296327554 Mon Sep 17 00:00:00 2001
From: Matt Montag <matt.montag@gmail.com>
Date: Sun, 22 Sep 2024 16:05:57 -0700
Subject: [PATCH] Return early when state is null or undefined

The strict equality check for state === undefined in setStateIfNeeded can cause a crash if state is null.
---
 src/VirtualList.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/VirtualList.js b/src/VirtualList.js
index a2a74d5..81e1c02 100644
--- a/src/VirtualList.js
+++ b/src/VirtualList.js
@@ -53,7 +53,7 @@ const VirtualList = (options, mapVirtualToProps = defaultMapToVirtualProps) => (
       // get first and lastItemIndex
       const state = getVisibleItemBounds(list, container, items, itemHeight, itemBuffer);
 
-      if (state === undefined) { return; }
+      if (state == null) { return; }
       
       if (state.firstItemIndex > state.lastItemIndex) { return; }