Hide a facet if there is only one choice left

<?php
// Hides a facet if there is only one option left
// Replace 'my_facet_name' with the name of your facet (4x)
add_action( 'facetwp_scripts', function() { ?>
  <script>
    (function($) {
      document.addEventListener('facetwp-loaded', function() {
        if ( FWP.settings.num_choices.my_facet_name !== 'undefined' && FWP.settings.num_choices.my_facet_name < 2 ) {
          $('.facetwp-facet-my_facet_name').addClass( 'facetwp-hidden' );
        } else {
          $('.facetwp-facet-my_facet_name').removeClass( 'facetwp-hidden' );
        }
      });
    })(fUtil);
  </script>
<?php } );