HTML Table Insert Demo

<!doctype html>
<html>

<head>
    <title>HTML Table Insert Demo</title>

</head>

<body>

<style>
table {
    font-family: arial, sans-serif;
    border-collapse: collapse;
    width: 100%;
}

td, th {
    border: 1px solid #dddddd;
    text-align: left;
    padding: 8px;
}

tr:nth-child(even) {
    background-color: #dddddd;
}
</style>

<body>

<p>Click the button to add a new row at the first position of the table and then add cells and content.<br>
<button onclick="myFunction()">Try it</button><br>
</p>

<table id="myTable">
  <tr>
    <td>ROW:3 CELL:A</td>
    <td>ROW:3 CELL:B</td>
  </tr>
  <tr>
    <td>ROW:2 CELL:A</td>
    <td>ROW:2 CELL:B</td>
  </tr>
  <tr>
    <td>ROW:1 CELL:A</td>
    <td>ROW:1 CELL:B</td>
  </tr>
</table>
<br>

<script>
var counter = 4;
function myFunction() {
    var table = document.getElementById("myTable");
    var row = table.insertRow(0);
    var cell1 = row.insertCell(0);
    var cell2 = row.insertCell(1);
    var string_counter = counter.toString()
    cell1.innerHTML = "ROW:" + string_counter + " CELL:A (New)";
    cell2.innerHTML = "ROW:" + string_counter + " CELL:B (New)";
    counter++;
}
</script>

</body>
</html>

</body>

</html>