コードを編集:
結果を参照してください。 »
それを自分で試してみてください - ©
w3ii.com
<!DOCTYPE html> <html> <body> <textarea id="myTextarea" name="comment"> Some text in a text area....</textarea> <p>Click the buttons below to display and/or change the value of the name attribute of the text area.</p> <button onclick="display()">Display name</button> <button onclick="change()">Change name</button> <script> function display() { var x = document.getElementById("myTextarea").name; alert("The name of the text area is: " + x); } function change() { var x = document.getElementById("myTextarea").name = "newTxtName"; alert ("The name was changed to: " + x); } </script> </body> </html>