Modificare il codice:
Vedi Risultato »
Prova tu stesso - ©
w3ii.com
<!DOCTYPE html> <html> <body> Address:<br> <textarea id="myTextarea" placeholder="Your address.."> </textarea> <p>Click the button to change the placeholder text of the text area.</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { document.getElementById("myTextarea").placeholder = "Where do you live?"; } </script> </body> </html>