<![CDATA[
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>날짜 계산기</title>
<link rel="stylesheet" href="style_js.css">
<body>
<h2>궁금한 날짜를 입력하세요:</h2>
<input type="number" id="year" placeholder="년">
<input type="number" id="month" placeholder="월">
<input type="number" id="day" placeholder="일">
<button onclick="calculateDays()">계산</button><hr>
<p id="today"></p>
<p id="result"></p>
<script>
function calculateDays() {
const year = parseInt(document.getElementById("year").value);
const month = parseInt(document.getElementById("month").value);
const day = parseInt(document.getElementById("day").value);
const today = new Date();
const inputDate = new Date(year, month - 1, day);
const timeDiff = today - inputDate;
const daysDiff = Math.floor(timeDiff / (1000 * 60 * 60 * 24));
document.getElementById("today").innerHTML=`${today.toLocaleString()}`;
if(daysDiff >= 0)
document.getElementById("result").innerHTML=`${daysDiff}일 전`;
else
document.getElementById("result").innerHTML=`${-(daysDiff)}일 남았음`;
}
</script>
</body>
</html>
]]>