If there is no leader, we sort the members array alphabetically, using the clientId property of each PresenceMessage:

Swarm7.ts

    ...
    const sortedMembers = members.sort(
        (a, b) => (a.connectionId as any) - (b.connectionId as any)
    );
    if (sortedMembers[0].clientId === this.id) {
        await this.channel.presence.update("leader");
        this.onElection(this.channel);
    }
}