JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id='calendar'></input>

JavaScript

$(document).ready(function () {
    $("#calendar").datepicker();
            // some time later. . .
    $('#calendar').datepicker
        ({
            onSelect: function() 
            {
                alert('array');
            }
        }); 
    $('#calendar').bind('datepickeronSelect', function(){alert('bind');});
    $('#calendar').bind('datepicker.onSelect', function(){alert('bndDot');});
    //$('#calendar').datepicker('option', 'onSelect', function (){alert('option');});
});