vs is modified

projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.html

@@ -4,7 +4,8 @@
   perfectScrollbar
   fxFlexFill
   #psChatContent
-  [bufferAmount]="10"
+  [bufferAmount]="5"
+  [compareItems]=""
   (psScrollUp)="onScrollup($event)"
   (psYReachStart)="onYReachStart($event)"
   (psYReachEnd)="onYReachEnd($event)"

projects/ucap-webmessenger-ui-chat/src/lib/components/messages.component.ts

@@ -607,4 +607,10 @@ export class MessagesComponent implements OnInit, OnDestroy {
   trackByEvent(index: number, info: Info<EventJson>): number {
     return info.seq;
   }
+
+  compareItemsFunc = (
+    item1: Info<EventJson>,
+    item2: Info<EventJson>
+    // tslint:disable-next-line: semicolon
+  ): boolean => item1.seq === item2.seq;
 }