Get Multiple Selected Row html data out of Datatables

I am using Datatables (datatables.net) successfully to display all the data I need. But I am having difficulty understanding how to pull out selected column data from a json object. I have failed to JSON.stringify the object, as well as attempt to access the properties of the object directly.

The use of the datatables allows the user to select multiple rows and a built in button will perform a submit action to my rails server. I currently cannot access the object to parse the data. I may need a loop and thats fine, but again, I am having difficulty understanding the library on multiple select.

I have successfully console.log the object and verified the data I want is present. I currently want the 1 index of Array[12] for n selected rows. I have figured out how to provide a count of the selected rows, so I can parse the object using the count as a loop limiter. But again my attempts have failed.

Console.log object:

    [Array[12], Array[12], Array[12], context: Array[1], selector: Object, ajax: Object, colReorder: Object, keys: Object]
    0:Array[12]0:""1:"36"2:

Code:

    $(document).ready(function() {
$('.stay').DataTable( {
  dom: "<'row'<'col-sm-8'B><'col-sm-4'f>>"+ 'rt' + "<'row'<'col-sm-6'i><'col-sm-6'p>>",
  buttons: [
    'selectNone',
    'selectAll',
    {
        extend: 'selected',
        text: 'Assign Rooms',
        action: function ( e, dt, node, config ) {
            var rows = dt.rows( { selected: true } ).count();
            var selected_rows = dt.rows( {selected: true} ).data(0);
            console.log(selected_rows);

            url = window.location;
            // index = url.indexOf("housekeeper")
            // alert(index);
            alert( 'There are '+rows+'(s) selected in the table' );
            alert(selected_rows[0])
                // $.ajax({
                //   url: "/BookCreate/?mdate="+mdate+"&phone="+phone,
                //   type: "post",
                //   data: values,
                //   success: function(){
                //     alert('Saved Successfully');
                //   },
                //   error:function(){
                //    alert('Error');
                //   }
                // });
        }
    },
    {
      extend: 'colvis',
      text: 'Columns',
      autoClose: true,
    },
      {
          extend: 'copy',
          text:      '<i class="fa fa-files-o"></i>',
          exportOptions: {
              columns: ':visible'
          }
      },
      {
          extend: 'excel',
          text:      '<i class="fa fa-file-excel-o"></i>',
          exportOptions: {
              columns: ':visible'
          }
      },
      {
          extend: 'csv',
          text:      '<i class="fa fa-file-code-o"></i>',
          exportOptions: {
              columns: ':visible'
          }
      },
      {
          extend: 'pdf',
          text:      '<i class="fa fa-file-pdf-o"></i>',
          exportOptions: {
              columns: ':visible'
          }
      },
      {
          extend: 'print',
          text:      '<i class="fa fa-print"></i>',
          exportOptions: {
              columns: ':visible'
          }
      },
  ],
  columnDefs: [ {
      visible: false
  } ],
    columnDefs: [ {
        orderable: false,
        className: 'select-checkbox',
        targets:   0
    } ],

    select: {
        style:    'os',
        selector: 'td:first-child',
        style: 'multi'
    },
    order: [[ 2, 'asc' ]]
} ).on( 'buttons-action', function ( e, buttonApi, dataTable, node, config ) {
    // action put here
    console.log( 'Button '+buttonApi.text()+' was activated' );
} );;

} );