How to call two javascript function in one button in ASP.NET

<script type="text/javascript">
    $(document).ready(function () {
        $(document).on("click", ".classAdd", function () { //on is used for getting click event for dynamically created buttons

            var rowCount = $('.data-contact-person').length + 1;
            var contactdiv = '<tr class="data-contact-person">' +
                '<td><input type="text" name="f-name' + rowCount + '" class="form-control f-name01" /></td>' +
                '<td><input type="text" name="l-name' + rowCount + '" class="form-control l-name01" /></td>' +
                '<td><input type="text" name="email' + rowCount + '" class="form-control email01" /></td>' +
                '<td><input type="text" name="stock' + rowCount + '" class="form-control stock01" /></td>' +
                '<td><input type="text" name="qty' + rowCount + '" class="form-control qty01" /></td>' +
                '<td><input type="text" name="rate' + rowCount + '" class="form-control rate01" /></td>' +
                '<td><input type="text" name="total' + rowCount + '" class="form-control total01" /></td>' +

                '<td><button type="button" id="btnAdd" class="btn btn-xs btn-primary classAdd">Add More</button>' +
                '<button type="button" id="btnDelete" class="deleteContact btn btn btn-danger btn-xs">Remove</button></td>' +
                '</tr>';
            $('#maintable').append(contactdiv); // Adding these controls to Main table class
        });

        $(document).on("click", ".deleteContact", function () {
            $(this).closest("tr").remove(); // closest used to remove the respective 'tr' in which I have my controls 
        });

        function getAllEmpData() {
            var data = [];
            $('tr.data-contact-person').each(function () {
                var firstName = $(this).find('.f-name01').val();
                var lastName = $(this).find('.l-name01').val();
                var emailId = $(this).find('.email01').val();
                var Stock = $(this).find('.stock01').val();
                var qty = $(this).find('.qty01').val();
                var rate = $(this).find('.rate01').val();
                var totalamount = $(this).find('.total01').val();

                var alldata = {
                    'FName': firstName,
                    'LName': lastName,
                    'EmailId': emailId,
                    'STOCK': Stock,
                    'QUANTITY': qty,
                    'RATE': rate,
                    'TOTAL': totalamount

                }
                data.push(alldata);
            });
            console.log(data);
            return data;
        }

        $("#btnSubmit").click(function () {
            var data = JSON.stringify(getAllEmpData());
            //console.log(data);
            $.ajax({
                url: 'Home.aspx/SaveData',
                type: 'POST',
                dataType: 'json',
                contentType: 'application/json; charset=utf-8',
                data: JSON.stringify({ 'empdata': data }),
                success: function () {
                    alert("Data Added Successfully");
                },
                error: function () {
                    alert("Error while inserting data");
                }
            });
        });
    });
</script>

<script type="text/javascript">
    $(document).ready(function () {
           var getAllEmp;

        $( document ).ready(function() {
            getAllEmp = function () {
                console.log(" getAllEmp");
                var data = [];
                $('tr.data-contact-person').each(function () {
                    var firstName = $(this).find('.Name').val();
                    var Con = $(this).find('.Contact').val();
                    var emailId = $(this).find('.Email').val();
                    var Sal = $(this).find('.Salary').val();
                    var Deg = $(this).find('.Designation').val();


                    var alldata = {
                        'FName': firstName,
                        'Contact': Con,
                        'EmailId': emailId,
                        'Salary': Sal,
                        'Degnation': Deg

                    }
                    data.push(alldata);
                });
                console.log(data);
                return data;
            }

            $("#btnSubmit").click(function () {
                var data = JSON.stringify(getAllEmp());
                //console.log(data);
                $.ajax({
                    url: 'Home.aspx/UpdateStaff',
                    type: 'POST',
                    dataType: 'json',
                    contentType: 'application/json; charset=utf-8',
                    data: JSON.stringify({ 'Supempdata': data }),
                    success: function () {
                        alert("Data Added Successfully");
                    },
                    error: function () {
                        alert("Error while inserting data");
                    }
                });
            });
        });
        });
    
</script>

<asp:Button ID="getAllEmpData" OnClientClick="getAllEmp();return false;" runat="server" Text="sb" Width="61px" />