JSFiddle - React, Tailwind, and code Playground

HTML

org date:<br>
<input type="text" id="intorgDate" /><br>
new date:<br>
<input type="text" id="intnewDate" /><br>

JavaScript

$(document).ready(function() {
    $("#intorgDate").change(function() {
        var myDate = new Date($("#intorgDate").val()); //ENTER VALUE IN mm/dd/yy FORMAT
        var mymaxDate = new Date(myDate +7);
        $('#intnewDate').datepicker({
            inline: true,
            dateFormat: "mm/dd/yy",
            changeFirstDay: false,                  
            defaultDate:myDate,
            minDate: myDate,
            maxDate: mymaxDate
        });
    });
});