We can create a <th> element via the document.createElement()
method:
var x = document.createElement("TH");
Click the button to create a TH element.
<!DOCTYPE html> <html> <head> <style> table, th { border: 1px solid black; } </style>/*from w w w . j av a 2 s .co m*/ </head> <body> <table id="myTable"> <tr id="myTr"> </tr> </table> <button onclick="myFunction()">Test</button> <script> function myFunction() { var x = document.createElement("TH"); var t = document.createTextNode("table header cell"); x.appendChild(t); document.getElementById("myTr").appendChild(x); } </script> </body> </html>