<!DOCTYPE html>
<html>
<head>
<title>jQuery Form Validation with Hidden Field</title>
<meta charset="utf-8">
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="https://cdn.jsdelivr.net/jquery.validation/1.16.0/jquery.validate.min.js"></script>
<style>
input[type="hidden"] {
display: none;
}
</style>
</head>
<body>
<form id="myForm">
<input type="text" name="username" placeholder="Username" required>
<input type="password" name="password" placeholder="Password" required>
<input type="hidden" name="secret" value="12345">
<button type="submit">Submit</button>
</form>
<script>
$(document).ready(function() {
$("#myForm").validate({
rules: {
username: "required",
password: "required",
secret: "required"
},
messages: {
username: "Please enter your username",
password: "Please enter your password",
secret: "Please enter the secret code"
}
});
});
</script>
</body>
</html>