tr.find('th:eq(2).child') code example
Example 1: jquery get second td of tr
$(this).closest('tr').find('td:nth-child(2)').text()
Example 2: jquery get 2nd child
$(t).children('td').eq(1);
$(this).closest('tr').find('td:nth-child(2)').text()
$(t).children('td').eq(1);