checking datatables is has data

Question

So i have datatables lets said name table is reportpr, and then i have jquery on these table (reload with ajax & json) here my code :

var table = $('#reportpr');
        var target = table.attr('data-table');
        var tblDetail = table.attr('data-detail');
        var oTable = table.on( 'processing.dt', function ( e, settings, processing ){
            if (processing) {
                $(this).find('tbody').addClass('load1 csspinner');
            } else{
                $(this).find('tbody').removeClass('load1 csspinner');
            };
        }).DataTable({
            "bServerSide": true,
            "dom": 'Bfrtip',
            "buttons": [
                'excelHtml5'
            ],
            "scrollX": true,
            "scrollY":        "200px",
            "scrollCollapse": true,
            "iDisplayLength": 10,
            "ajax": {
                "url" : url+"datatable",
                "type": "POST",
                "data" :{
                           title: target
                        },
            }
        });

Well is work it showing my data, but my problem is how do i check these table if has data or empty (no data). I try so many thing on these option like $("reportpr").DataTable().rows().count(); OR $("reportpr").DataTable().page.info(); but still not working, anyone any suggesting??? I just need check if my table has data or not.

EDIT :

I edit my question I wanna make another even trigger, so not showing masaage on datatbles, like

if(datatable is empty)
{
 button it will enable
}
else
{
 button is will disabled
}

Update : I try update my version DataTables from version 1.10.5 into 1.10.16, and try using $("reportpr").DataTable().data().any(); or $("reportpr").DataTable().rows().count();, is still not working, when that table has data is said i dont have data or empty data. Pls still help these thing.

Answer 1

Probably the simplest way is to count the rows - it will be 0 if empty:

table.rows().count()