Trigger the Input filters on button click

Trigger the Input filters on button click

HTML

<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.16/css/jquery.dataTables.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
<script>
$(document).ready(function() {
          var table=$('#example').DataTable({
           "paging":false,fixedHeader:{header: true,footer: true},responsive: false,autoWidth: false,  aaSorting: [[2, 'asc']], cache: true,
           columnDefs: [
           		{
              	targets: [ 0,1 ],
                render: function ( data, type, row, meta ) {
      							return type === 'filter' ?
        							data === '' ? '(Empty)' : data : data;
    }
              }
           ],
            initComplete: function () {
            }
       });
      $('button').on('click', function() {
    table.columns().every( function () {
      var that = this;
       $(".filterhead").each(function (i) {
        if (i != 2) {
          var select = $('<select><option value=""></option></select>')
            .appendTo($(this).empty())
            .on('change', function () {
              var term = $(this).val();
              table.column(i).search(term, false, false).draw();
            });
          table.column(i).data().unique().sort(function (a,b) {
            var strA = a.toUpperCase(); // ignore upper and lowercase
            var strB = b.toUpperCase(); // ignore upper and lowercase
            if (strA < strB) {
              return -1;
            }
            if (strA > strB) {
              return 1;
            }
            return 0;
          }).each(function (d, j) {
          
          if (d === '') {
          	d = '(Empty)'
          }
            select.append('<option value="' + d + '">' + d + '  </option>')
                         var state = this.state.loaded();
                if (...