PushAlert Get Subscriber ID HTML

<script>
        (pushalertbyiw = window.pushalertbyiw || []).push(['onSuccess', callbackOnSuccess]);

        function callbackOnSuccess(result) {
            console.log(result.subscriber_id); //will output the user's subscriberId
            //TODO: save subscriber's id to localstorate or cookie and use it when call register function
        }
</script>