FacetWP - show reset button only when facets are selected

test.js

<script>

/*
Code placement: see the "Javascript" section on https://facetwp.com/how-to-use-hooks/
This assumes that your reset button looks like this:

<a class="my-reset-btn" onclick="FWP.reset()">RESET</a>
*/

(function($) {
    $(document).on('facetwp-loaded', function() {
        var qs = FWP.build_query_string();
        if ( '' === qs ) { // no facets are selected
            $('.your-reset-btn').hide();
        }
        else {
            $('.your-reset-btn').show();
        }
    });
})(jQuery);

</script>

Doesn't work for me

FWP.build_query_string() should be replaced with FWP.buildQueryString()

FWP.buildQueryString() seems to return the entire query string, even if the vars have nothing to do with any FWP filters.

I find that this code is more accurate:

var in_use = false;

        // see if any facets are in use
        $.each(FWP.facets, function(name, val) {
            if (val.length > 0) {
                in_use = true;
            }
        }

@colincny Thanks for the update!