<div id="div1">
<input type="date" name="date1" id="date1" min="2020-01-01" max="2020-12-31"/>
<input type="date" name="date2" id="date2" onchange="compare(this)" />
</div>
@section scripts{
<script>
function compare(item) {
if (new Date($(item).val()) > new Date("2020-7-14")) {
$(item).attr("value", "");
$("#date2").remove();
var date2 = '<input type="date" name="date2" id="date2" onchange="compare(this)" />';
$("#div1").append(date2);
}
}
</script>