<!DOCTYPE html>
<html>
<head>
	<title></title>
	<meta charset="utf-8">
	<script type="text/javascript">
	let person1 = {name: "Name1",
        age: 20
            };
    console.log(person1.name);
    console.log(person1.age);
    let person2 = {
    age: 80
};
console.log(person2.age);

	</script>
</head>
<body>

</body>
</html>