https://cbdoilshop.gr/wp-content/plugins/woocommerce-products-filter/js/html_types/mselect.js?ver=2.2.5.1

1function woof_init_mselects() {
2    try {
3        // jQuery("select.woof_select").chosen('destroy').trigger("liszt:updated");
4        jQuery("select.woof_mselect").chosen(/*{disable_search_threshold: 10}*/);
5    } catch (e) {
6
7    }
8
9    jQuery('.woof_mselect').change(function (a) {
10        var slug = jQuery(this).val();
11        var name = jQuery(this).attr('name');
12
13        //fix for multiselect if in chosen mode remove options
14        if (is_woof_use_chosen) {
15            var vals = jQuery(this).chosen().val();
16            jQuery('.woof_mselect[name=' + name + '] option:selected').removeAttr("selected");
17            jQuery('.woof_mselect[name=' + name + '] option').each(function (i, option) {
18                var v = jQuery(this).val();
19                if (jQuery.inArray(v, vals) !== -1) {
20                    jQuery(this).prop("selected", true);
21                }
22            });
23        }
24
25        woof_mselect_direct_search(name, slug);
26        return true;
27    });
28}
29
30function woof_mselect_direct_search(name, slug) {
31    //mode with Filter button
32    var values = [];
33    jQuery('.woof_mselect[name=' + name + '] option:selected').each(function (i, v) {
34        values.push(jQuery(this).val());
35    });
36
37    //duplicates removing
38    //http://stackoverflow.com/questions/9229645/remove-duplicates-from-javascript-array
39    values = values.filter(function (item, pos) {
40        return values.indexOf(item) == pos;
41    });
42
43    values = values.join(',');
44    if (values.length) {
45        woof_current_values[name] = values;
46    } else {
47        delete woof_current_values[name];
48    }
49
50    woof_ajax_page_num = 1;
51    if (woof_autosubmit) {
52        woof_submit_link(woof_get_submit_link());
53    }
54}
55
56