<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
personObj = new Object();
personObj.firstname = "John";
personObj.lastname = "Doe";
personObj.age = 50;
personObj.eyecolor = "blue";
$("button").click(function(){
$("div").text($.param(personObj));
});
});
</script>
</head>
<body>
<button>Serialize object</button>
<div></div>
</body>
</html>