can i order column in datatable code example

Example 1: datatable desc active

$('#exemple').DataTable({
    "order": [[ 3, "desc" ]], //or asc 
    "columnDefs" : [{"targets":3, "type":"date-eu"}],
});

Example 2: datatable get order column

var table = $('#example').DataTable();

var order = table.order();
alert( 'Table is ordered by column: ' + order[0][0] + ', direction:' + order[0][1]);

var title = table.column(order[0][0]).header();
alert( 'Ordering column title: ' + $(title).html() );