> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-docs-rn-guide-message-privately.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.
# Leave A Group
> Leave CometChat groups from JavaScript apps by GUID and stop receiving messages and updates for that group.
## Leave a Group
Use `leaveGroup()` to leave a group.
```typescript theme={null}
const GUID: string = "GUID";
CometChat.leaveGroup(GUID).then(
(hasLeft: boolean) => {
console.log("Group left successfully:", hasLeft);
}, (error: CometChat.CometChatException) => {
console.log("Group leaving failed with exception:", error);
}
);
```
```javascript theme={null}
const GUID = "GUID";
CometChat.leaveGroup(GUID).then(
hasLeft => {
console.log("Group left successfully:", hasLeft);
}, error => {
console.log("Group leaving failed with exception:", error);
}
);
```
| Parameter | Description |
| --------- | --------------------------------------------- |
| `GUID` | The GUID of the group you would like to leave |
Once a group is left, the user will no longer receive any updates or messages pertaining to the group.
On success, the method resolves with `true` (boolean).
## Real-time Group Member Left Events
Register a `GroupListener` to receive events when members leave.
```typescript theme={null}
CometChat.addGroupListener(
"UNIQUE_LISTENER_ID",
new CometChat.GroupListener({
onGroupMemberLeft: (message: CometChat.Action, leavingUser: CometChat.User, group: CometChat.Group) => {
console.log("User left", { message, leavingUser, group });
}
})
);
```
```javascript theme={null}
CometChat.addGroupListener(
"UNIQUE_LISTENER_ID",
new CometChat.GroupListener({
onGroupMemberLeft: (message, leavingUser, group) => {
console.log("User left", { message, leavingUser, group });
}
})
);
```
Always remove group listeners when they're no longer needed (e.g., on component unmount or page navigation). Failing to remove listeners can cause memory leaks and duplicate event handling.
```javascript theme={null}
CometChat.removeGroupListener("UNIQUE_LISTENER_ID");
```
## Missed Group Member Left Events
When fetching message history, leave events appear as [`Action`](/sdk/reference/messages#action) messages with:
* `action` — `"left"`
* `actionBy` — [`User`](/sdk/reference/entities#user) who left
* `actionFor` — [`Group`](/sdk/reference/entities#group) that was left
***
## Next Steps
Join public or password-protected groups
Permanently delete a group
Remove or ban members from a group
Fetch and filter the list of groups