Find out if a week field is read-only or not:
var x = document.getElementById("myWeek").readOnly;
Click the button to find out if the week field is read-only or not.
input elements with type="week" are not supported in Internet Explorer or Firefox.
<!DOCTYPE html> <html> <body> <input type="week" id="myWeek" readonly> <button onclick="myFunction()">Test</button> <p id="demo"></p> <script> function myFunction() {/*w w w. java2 s .co m*/ var x = document.getElementById("myWeek").readOnly; document.getElementById("demo").innerHTML = x; } </script> </body> </html>