Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<body>

<form action="demo_form.asp" method="get">
E-mail: <input type="email" name="userid"><br>
<button id="myBtn" type="submit" formnovalidate>Submit</button>
</form>

<p>Click the "Try it" button to specify that the form-data above should be validated on submission.</p>

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

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

<script>
function myFunction() {
    document.getElementById("myBtn").formNoValidate = false;
    document.getElementById("demo").innerHTML = "The formnovalidate attribute in the submit button is no longer present, and the form-data will now be validated on submission.";
}
</script>

</body>
</html>