We can create a <strong> element via the document.createElement()
method:
var x = document.createElement("STRONG");
Click the button to create a STRONG element with some text.
<!DOCTYPE html> <html> <body> <button onclick="myFunction()">Test</button> <script> function myFunction() {/*from ww w. ja v a 2s.com*/ var x = document.createElement("STRONG"); var t = document.createTextNode("Some strong text"); x.appendChild(t); document.body.appendChild(x); } </script> </body> </html>