<!DOCTYPE html>
<html lang="en">
<head>
<script>
document.addEventListener('DOMContentLoaded', function() {
document.querySelector('form').addEventListener('submit', function(event) {
alert('hello, ' + document.querySelector('#name').value);
event.preventDefault();
});
});
</script>
<title>hello2</title>
</head>
<body>
<form>
<input autocomplete="off" autofocus id="name" placeholder="Name" type="text">
<input type="submit">
</form>
</body>
</html>