If it exists for some front-end processing, it does not need to be submitted to the server backend, and the name attribute is not set.
Online testing such as:
<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("button").click(function(){
$("div").text($("form").serialize());
});
});
</script>
</head>
<body>
<form action="">
First name: <input type="text" value="Bill" /><br />
Last name: <input type="text" name="LastName" value="Gates" /><br />
</form>
<button>序列化表单值</button>
<div></div>
</body>
</html>