How to update new data to a row properly ?

ezsticker

Debugger code (debug.datatables.net):

            editor = new $.fn.dataTable.Editor({
                ajax: "/cms_bs4/public/editer_tables/controllers/staff.php",
                table: "#example",
                template: '#customForm',
                fields: [{
                        label: "First name:",
                        name: "first_name"
                    }, {
                        label: "Last name:",
                        name: "last_name"
                    }, {
                        label: "Position:",
                        name: "position"
                    }, {
                        label: "Office:",
                        name: "office"
                    }, {
                        label: "Extension:",
                        name: "extn"
                    }, {
                        label: "Start date:",
                        name: "start_date",
                        type: "datetime"
                    }, {
                        label: "Salary:",
                        name: "salary"
                    }
                ]
            });
            var mytable=$('#example').DataTable({
                dom: "Bfrtip",
                ajax: "/cms_bs4/public/editer_tables/controllers/staff.php",
                columns: [
                    {data: null, render: function (data, type, row) {
                            // Combine the first and last names into a single table field
                            return data.first_name + ' ' + data.last_name;
                        }},
                    {data: "position"},
                    {data: "office"},
                    {data: "extn"},
                    {data: "start_date"},
                    {data: "salary", render: $.fn.dataTable.render.number(',', '.', 0, '$')}
                ],
                select: true,
                buttons: [ 
                    {
            extend: "edit",
                    editor: editor,
                    formButtons: [
                    {
                    label: 'update',
                            fn: function () {
                            console.log("do something...");

                            //then how to update this data
                            //mytable.submit();
                            }
                    },
                    ]
            },                      
                ]
            });

Error messages shown: mytable.submit is not a function
Description of problem: I want do something,then update this data to client side and server side.

ezsticker

I have found the answer,tks.