We can create a <tr> element via the document.createElement()
method:
var x = document.createElement("TR");
Click the button to create a TR and a TD element.
<!DOCTYPE html> <html> <head> <style> table, td { border: 1px solid black; } </style>/* www. j av a2s . c om*/ </head> <body> <table id="myTable"> </table> <button onclick="myFunction()">Test</button> <script> function myFunction() { var x = document.createElement("TR"); x.setAttribute("id", "myTr"); document.getElementById("myTable").appendChild(x); var y = document.createElement("TD"); var t = document.createTextNode("new cell"); y.appendChild(t); document.getElementById("myTr").appendChild(y); } </script> </body> </html>