Hide elements with Specific tag or boolean in contents manager

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Hello guys,
i am linking contents manager’s data to the page(repeater),
but only some of the items need to show the text element.

I would like to hide and collapse the rest of the elements, so i refer to tutorial video to made the code as below, but it doesn’t work.

i would like to show the items which the “showsub”(boolean) was checked.
and the rest of items without boolean got checked will hide and collapse.

$w.onReady(function() {
    $w("#dataset1").onReady(() => { 
     let Restaurant = $w("#dataset1").getCurrentItem();

     	if(Restaurant .showsub === true){
    	   	$w("#text155").show();
		   	$w("#text155").expand();
 		} else{
    		$w("#text155").hide();
			$w("#text155").collapse();
 		}
 
	 });
 });

i am also thinking to show/hide the items with specic tags, but i couldn’t find the way to make the code understand the specific tag.

If anyone could take a look would be very helpful!