From 479138c264809181842689b300ce30202080307c Mon Sep 17 00:00:00 2001
From: Alexander Zinchuk <alx.zinchuk@gmail.com>
Date: Wed, 23 Jun 2021 16:29:22 +0300
Subject: [PATCH] Chat: Handle "Cannot read property style of null" exception
 (#1203)

---
 src/components/left/main/Chat.tsx | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/components/left/main/Chat.tsx b/src/components/left/main/Chat.tsx
index 1e8f7b07f..767126b65 100644
--- a/src/components/left/main/Chat.tsx
+++ b/src/components/left/main/Chat.tsx
@@ -123,12 +123,12 @@ const Chat: FC<OwnProps & StateProps & DispatchProps> = ({
 
   // Sets animation excess values when `orderDiff` changes and then resets excess values to animate.
   useLayoutEffect(() => {
-    if (animationLevel === 0) {
+    const element = ref.current;
+
+    if (animationLevel === 0 || !element) {
       return;
     }
 
-    const element = ref.current!;
-
     // TODO Refactor animation: create `useListAnimation` that owns `orderDiff` and `animationType`
     if (animationType === ChatAnimationTypes.Opacity) {
       element.style.opacity = '0';