Editar el código:
ver Resultados »
Inténtalo tú mismo - ©
w3ii.com
<!DOCTYPE html> <html> <body> <p>Click the button to check the feature Core XML DOM Level 2 is supported for the button element.</p> <button onclick="myFunction()">Try it</button> <p><strong>Note:</strong> This method is not supported in Chrome, Firefox, Opera and IE8 and earlier versions.</p> <p id="demo"></p> <script> function myFunction() { var item = document.getElementsByTagName("BUTTON")[0]; var x = item.isSupported("Core", "2.0"); document.getElementById("demo").innerHTML = x; } </script> </body> </html>