public bool IsJoinedById(string userId) { return(JoinedUsers.Any(p => p.Id == userId)); }
public bool AlreadyJoinedByEmail(string email) { return(JoinedUsers.Any(p => p.Email == email)); }
public bool IsJoinedById(string userId) { return(JoinedUsers.Any(p => p.Id == userId)); }
public bool AlreadyJoinedByEmail(string email) { return(JoinedUsers.Any(p => p.Email == email)); }