From cabe14d7e28cefbc15b46f5e9fc56be7ee67904e Mon Sep 17 00:00:00 2001
From: ElementRobot <releases@riot.im>
Date: Fri, 20 Jan 2023 12:13:36 +0000
Subject: [PATCH] replace .at(-1) with array.length-1 (#3080) (#3081)

(cherry picked from commit baeb4acddf718eea7e286761a5c9ee5136993a88)

Co-authored-by: Germain <germains@element.io>
---
 src/models/thread.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/models/thread.ts b/src/models/thread.ts
index 31587bbaf..b688d12ac 100644
--- a/src/models/thread.ts
+++ b/src/models/thread.ts
@@ -572,7 +572,7 @@ export class Thread extends ReadReceipt<EmittedEvents, EventHandlerMap> {
      */
     public getEventReadUpTo(userId: string, ignoreSynthesized?: boolean): string | null {
         const isCurrentUser = userId === this.client.getUserId();
-        const lastReply = this.timeline.at(-1);
+        const lastReply = this.timeline[this.timeline.length - 1];
         if (isCurrentUser && lastReply) {
             // If the last activity in a thread is prior to the first threaded read receipt
             // sent in the room (suggesting that it was sent before the user started