Enable timer when scrolling to block, disable for registered users in Wordpress?

Question

JavaScript

There is a timer code

add_action('wp_head', 'add_script_timer');
function add_script_timer() {
?>
<script type="text/javascript">
timer_num = 30;//сколько секунд показывать таймер
function timer_fc(){
if(timer_num>0){
$('#timer_num').text(timer_num);
timer_num--;
setTimeout("timer_fc()", 1000)
}else{
$('#timer_1').hide(); $('#timer_2').show();
}}
timer_fc();
</script>
<?php
}

I also found some code to enable the script when scrolling habr.

You need to configure the timer to turn on when scrolling to a specific block. I can't attach the second code to the first one.

Also, if someone fumbles, please help turn off the timer for registered users) Thank you!

Answer 1

is_user_logged_in() shows if the user is logged in.
And scrolling to the block can be tracked using intersectionObserver 'a