HTML JS
(quick guide & examples)
<table id="demoA"> <tr> <td>A</td> </tr> </table>
GET TABLE var table = document.getElementById ("demoA");
INSERT ROW var row = table.insertRow();
INSERT CELLS var cell = row.insertCell(); cell.innerHTML = "B";
GET TABLE var table = document.querySelector ("#demoB tbody");
<table id="demoB"> <tr> <td>A</td> </tr> </table>
APPEND NEW ROW table.innerHTML += "<tr><td>B</td></tr>";