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<html><body><form action="https://www.w3schools.com/action_page.php"> A hidden field:<input type="hidden" id="myInput" name="country" value="Norway"><br> <input type="submit" value="Submit"></form><p>Notice that the hidden field above is not shown to a user.</p><p>Submit the form to see the value of the name and value attribute of the hidden input field, as received input.</p><p>Click the "Try it" button to change the value from "Norway" to "USA".</p><button onclick="myFunction()">Try it</button><p id="demo"></p><script>function myFunction() { document.getElementById("myInput").value = "USA"; document.getElementById("demo").innerHTML = "The value of the value attribute was changed. Try to submit the form again.";}</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_hidden_value3 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 18:16:55 GMT --></html>