JSFiddle - React, Tailwind, and code Playground

by Md. Atiquzzaman Soikat

HTML

<link rel="stylesheet" href="https://code.jquery.com/ui/1.10.4/themes/ui-lightness/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<script src="https://code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<div id="calendar"></div>

	<p><font font face="Verdana">Output:    </font> <input class="target" type="text" id="datepicker2" size="19" readonly></p>

JavaScript

$( function(){
			$( "#datepicker" ).datepicker();
            });


$( document ).ready(function() {
    $("#hidden_calendar").hide();
});

	$( ".target" ).change(function() {

	});
	
$('#calendar').datepicker({
    minDate: '2017-02-26', //Base Date
    dateFormat: 'yy-m-d',
    inline: true,
    onSelect: function(dateText, inst) { 
    
        var date2 = $(this).datepicker('getDate');
        var date1 = new Date("November 10, 2010 00:00:00");
        var oneDay = 24*60*60*1000;
        var start = 100;
        var diff =  Math.floor(( date2 - date1 ) / 86400000); 
        var output = start + Math.floor(diff/7);
        
        
		$('#datepicker2').val(output);
		
    }
});	

    $("#hide_calendar").click(function(){
        $("#hidden_calendar").toggle();
    });