https://www.zumbroendurancerun.com/wp-content/themes/rsr-divi/js/datatables.jobs.js?ver=7.1.2

1jQuery(document).ready(function() {
2  function decodeHtml(value) {
3    const textarea = document.createElement('textarea');
4    textarea.innerHTML = value;
5    return textarea.value;
6  }
7
8  function addJobFilter(table) {
9    const column = table.column(2);
10    const heading = $(column.header()).text().trim();
11    if (heading !== 'Job') return;
12    if ($(table.table().container()).find('.job-filter').length) return;
13    const $select = $('<select class="job-filter"><option value="">All Jobs</option></select>');
14
15    column
16      .data()
17      .unique()
18      .sort()
19      .each(function (value) {
20        if (value) {
21          const decodedValue = decodeHtml(value);
22          $select.append(
23            $('<option></option>')
24              .attr('value', decodedValue)
25              .text(decodedValue)
26          );
27        }
28      });
29
30    $select.on('change', function () {
31      const value = $.fn.dataTable.util.escapeRegex($(this).val());
32      column
33        .search(value ? '^' + value + '$' : '', true, false)
34        .draw();
35    });
36
37    $(table.table().container())
38      .find('.dataTables_filter')
39      .after(
40        $('<div class="job-filter-wrapper"><label>Job: </label></div>')
41          .append($select)
42      );
43  }
44
45  // Catch future DataTable initialization.
46  $(document).on('init.dt', function (e, settings) {
47    addJobFilter(new $.fn.dataTable.Api(settings));
48  });
49
50  // Catch tables that were initialized before this script ran.
51  $(function () {
52    $('.dataTable').each(function () {
53      if ($.fn.dataTable.isDataTable(this)) {
54        addJobFilter($(this).DataTable());
55      }
56    });
57  });
58});