<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<p id="quiz1"></p>
<p id="quiz2"></p>
<p id="quiz3"></p>
<script>
//복습 1
let mesc = Date.parse("2023-9-25");
const today = new Date();
let mesc2 = Date.parse(today);
let live = mesc2 - mesc / (60 * 60 * 24 * 1000);
document.getElementById("quiz1").innerHTML = live;
//복습 2
let future = 1000 * (1000 * 60 * 60 * 24);
let after_10000 = mes2 + future;//mes2가 아닌 mesc2를 써야 한다
const after_Date = new Date(after_10000);
document.getElementById("quiz2").innerHTML = after_Date;
//복습 3
let birmesc = Date.parse("1997-1-2");
let live_date = Date.parse(today) - birmesc;
let living = (live_date) / (24 * 60 * 60 * 1000);
document.getElementById("quiz3").innerHTML = living;
</script>
</body>
</html>