<!DOCTYPE html>
<html>
<body>

<form id="myForm" action="form_action.asp">
First name: <input type="text" name="fname"><br>
Last name: <input type="text" name="lname"><br>
<button id="myBtn" type="button" value="Reset">Reset</button>
</form>

<p>Try to write something in the form, and then press "Reset".</p>

<p>The "Reset" button will not reset the form, because of the button type (type="button" just makes the button clickable, and will not clear form-data).</p>

<p>Click the "Try it" button below to change the type of the "Reset" button above from "button" to "reset".</p>

<button onclick="myFunction()">Try it</button>

<p id="demo"></p>

<script>
function myFunction() {
    var x = document.getElementById("myBtn").type = "reset";
    document.getElementById("demo").innerHTML = "The 'Reset' button now works as it should.";
}
</script>

</body>
</html>