Change the name of a date field:
document.getElementById("myDate").name = "newDateName";
Click the buttons to display/change the value of the name attribute of the date field.
<!DOCTYPE html> <html> <body> Birthday: <input type="date" id="myDate" name="bday"> <p id="demo"></p> <button onclick="display()">Display name</button> <button onclick="change()">Change name</button> <script> function display() { var x = document.getElementById("myDate").name; document.getElementById("demo").innerHTML = "The name of the date field is: " + x; } function change() {/*from ww w . j ava 2 s . c om*/ var x = document.getElementById("myDate").name = "newDateName"; document.getElementById("demo").innerHTML = "The name was changed to: " + x; } </script> </body> </html>