JSFiddle - React, Tailwind, and code Playground

HTML

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>

JavaScript

jQuery.extend({
    stringify  : function stringify(obj) {
        var t = typeof (obj);
        if (t != "object" || obj === null) {
            // simple data type
            if (t == "string") obj = '"' + obj + '"';
            return String(obj);
        } else {
            // recurse array or object
            var n, v, json = [], arr = (obj && obj.constructor == Array);

            for (n in obj) {
                v = obj[n];
                t = typeof(v);
                if (obj.hasOwnProperty(n)) {
                    if (t == "string") v = '"' + v + '"'; else if (t == "object" && v !== null) v = jQuery.stringify(v);
                    json.push((arr ? "" : '"' + n + '":') + String(v));
                }
            }
            return (arr ? "[" : "{") + String(json) + (arr ? "]" : "}");
        }
    }
});

var date = new Date();
var d = date.getDate();
var m = date.getMonth();
var y = date.getFullYear();
var objectArray= {};    
objectArray['title']='All Day Event';
objectArray['start']=new Date(y, m, 1);
console.log(JSON.stringify(objectArray));