$(document).ready(function() {
    $('#userTable').DataTable({
        "ajax": "data.json", // Gọi trực tiếp file json
        "columns": [
            { "data": "id" },
            { "data": "name" },
            { "data": "email" },
            { "data": "phone" },
            { "data": "class" }
        ],
        "language": {
            "url": "//cdn.datatables.net/plug-ins/1.13.6/i18n/vi.json"
        }
    });
});