I want to add action button to my datatable here the code 
html table and datatables 

```
<table id="users-table" class="table table-bordered">
        <thead>
        <tr>
            <th>Id</th>
            <th>Name</th>
            <th>Email</th>
            <th>alamat</th>
            <th>nohp</th>
            <th>action</th>
        </tr>
        </thead>
    </table>

    <script id="script">
        $(function () {
            $('#users-table').DataTable({
                processing: true,
                serverSide: true,
                ajax: 'test/json'
            });
        });
    </script>

```

heres the laravel json datatables

```
public function data(Datatables $datatables)
{
    $builder = Kontak::query()->select('id', 'nama', 'email', 'alamat', 'nohp');

    return $datatables->eloquent($builder)
                    ->addColumn('action', 'users.datatables.intro')
                    ->rawColumns(['action'])
                    ->make();
}

```

but it keeps show result like this
[result images](https://i.stack.imgur.com/0U1Mc.png)