Hide a listing title when the listing has no results/posts

<?php
add_action('facetwp_scripts', function () { ?>
  <script>
    (function($) {
      $().on('facetwp-loaded', function() {
        var has_posts = ( 0 <  FWP.settings.pager.total_rows);
        var method = has_posts ? 'removeClass' : 'addClass';
        $('h1.listing-title')[method]('facetwp-hidden');
      });
    })(fUtil);
  </script>
<?php }, 100);