Đối_tượng_DATE.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Bài tập DATE</title>
  <script type="text/javascript">
    
    var now = new Date();
    alert(now);
    
    var vnwomanDay = new Date(2018,9,20); // Năm - tháng(tự cộng thêm 1) - ngày 
    alert(vnwomanDay);
    
    var vnwomanDayAndTime = new Date(2018,9,20,12,20,30); // Năm-tháng-ngày-giờ-phút-giây
    alert(vnwomanDayAndTime);
    
    var now = new Date();
    alert("Ngày hôm nay: \n" + now);
    alert("Ngày hôm qua: \n" + new Date(now.getFullYear(), now.getMonth(), now.getDate() - 1));
    alert("Ngày mai: \n" + new Date(now.getFullYear(), now.getMonth(), now.getDate() + 1));
    alert("Ngày mốt: \n" + new Date(now.getFullYear(), now.getMonth(), now.getDate() + 2));
    
  </script>
</head>
<body>
</body>
</html>