Editar el código:
ver Resultados »
Inténtalo tú mismo - ©
w3ii.com
<!DOCTYPE html> <html> <body> Select a file to upload: <input type="file" id="myFile"> <p>Click the button below to find out which type of form element the FileUpload object is.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myFile").type; document.getElementById("demo").innerHTML = x; } </script> </body> </html>