global.js

jQuery(function($){

  // Hide empty facets
  // @see https://www.billerickson.net/advanced-search-with-searchwp-and-facetwp/#facetwp-hide-empty
  $(document).on('facetwp-loaded', function() {
    $.each(FWP.settings.num_choices, function(key, val) {
      var $parent = $('.facetwp-facet-' + key).closest('.widget');
      (0 === val) ? $parent.hide() : $parent.show();
    });
  });
});