<script>
function checkDate()
{
var selectedText = document.getElementById('datepicker').value;
var selectedDate = new Date(selectedText);
var now = new Date();
if (selectedDate < now) {
alert("Date must be in the future");
}
}
</script>
从日历中选择过去的日期时,此代码会引发警报消息
如何从日历中选择来限制将来的日期