facetwp show/hide labels

custom-hooks.php

<?php

add_action( 'wp_footer', function() {
	?>
    <script>
        (function($) {
	    if ('object' !== typeof FWP) {
                return;
            }
            $(function() {
                FWP.hooks.addAction('facetwp/loaded', function() {
                    /* run code here after facetwp loaded, 100 below can be modified to set priority order */
                    $('.facetwp-facet').each(function() {
                        var facet_name = $(this).attr('data-name');
                        var facet_label = FWP.settings.labels[facet_name];
                        if ( 'undefined' !== typeof FWP.settings.num_choices[facet_name] && FWP.settings.num_choices[facet_name] > 0 && $('.facet-label[data-for="' + facet_name + '"]').length < 1 ) {
                            $(this).before('<h3 class="facet-label" data-for="' + facet_name + '">' + facet_label + '</h3>');
                        } else if ( 'undefined' !== typeof FWP.settings.num_choices[facet_name] && !FWP.settings.num_choices[facet_name] > 0 ) {
                            $('.facet-label[data-for="' + facet_name + '"]').remove();
                        } 
                    });
                }, 100 );
            });
        })(jQuery);
    </script>
	<?php
}, 100 );