JSFiddle - React, Tailwind, and code Playground
by mkdskd
HTML
<div id="mDiv">
<input type="text" class = "class1">
<input type="hidden"/>
</div>
JavaScript
$(".class1").each(function(){
var currDate = $(this).siblings('input[type=hidden]').val();
if (currDate == "") {
$(this).val(new Date());
}
else
$(this).val(currDate);
});