الطاولة deleteTFoot() Method

document.getElementById("myTable").deleteTFoot();

function myCreateFunction() {
    var table = document.getElementById("myTable");
    var footer = table.createTFoot();
    var row = footer.insertRow(0);
    var cell = row.insertCell(0);
    cell.innerHTML = "<b>This is a table footer</b>";
}

function myDeleteFunction() {
    document.getElementById("myTable").deleteTFoot();
}