update check

store/index.ts

@@ -31,7 +31,7 @@ function uniqueMessages(
     messages: NonNullable<ChatStore.STATE_CHAT_MSG_HISTORY>
 ) {
     const arr = [...messages];
-    return unique(arr, function (item, all) {
+    return unique(arr, function(item, all) {
         return all.findIndex((k) => k.id === item.id);
     });
 }
@@ -112,12 +112,15 @@ const filterActiveChats = (items: RawChatItem[]) => {
 };
 
 export function getLastMessageId(msgs: Message[] | any) {
-    const last = msgs[msgs.length - 1];
-    let id = last.id;
-    if (id < 0) {
-        id = Math.max(...msgs.map((i: any) => i.id));
+    if (msgs && msgs.length) {
+        const last = msgs[msgs.length - 1];
+        let id = last.id;
+        if (id < 0) {
+            id = Math.max(...msgs.map((i: any) => i.id));
+        }
+        return id;
     }
-    return id;
+    return 0;
 }
 
 export default {
@@ -334,7 +337,7 @@ export default {
                 state[ChatStore.STATE_CHAT_SENDING_MESSAGES] = [...current];
             }
         },
-        [ChatStore.MUTATION_SAVE_CURRENT_CHAT_INPUTING]: (function () {
+        [ChatStore.MUTATION_SAVE_CURRENT_CHAT_INPUTING]: (function() {
             const setTimeoutId: { [key: string]: number } = {};
             return (
                 state: ChatStoreState,
@@ -838,7 +841,7 @@ export default {
             }
             commit(
                 ChatStore.MUTATION_SAVE_CURRENT_CHAT_MEMBERS,
-                unique(newChatMembers, function (item, all) {
+                unique(newChatMembers, function(item, all) {
                     return all.findIndex((k) => k.eid === item.eid);
                 })
             );