DataTable

HTML

<tr class="odd">
  <td class="details-control" key-num="123456" key-count="741"></td>
  <td>Airi Satou</td>
  <td>Accountant</td>
  <td>Tokyo</td>
  <td>$162,700</td>
</tr>

JavaScript

function format ( rowData ) {
    var div = $('<div/>')
        .addClass( 'loading' )
        .text( 'Loading...' );
 
    $.ajax( {
        url: '/api/staff/details',
        data: {
            key_num: "123456", //key-num="123456"
            key_count: "741",  //key-count="741"
        },
        dataType: 'json',
        success: function ( json ) {
            div
                .html( json.html )
                .removeClass( 'loading' );
        }
    } );
 
    return div;
}