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Override HTML5 validation
To ignore HTML validation, you can remove the attribute on button click using JavaScript.
Uer removeAttribute() to remove an attribute from each of the matched elements.
<!DOCTYPE html>
<html>
<body>
<form>
First Name: <input type = "text" id = "fname" value = "Amit" required>
<input type = "radio" onclick = "dislay('fname')"><br>
</form>
<script>
function display(id) {
document.getElementById(id).value = document.getElementById(id).removeAttribute('required');
}
</script>
</body>
</html>
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