objectSample6.js

var obj = {
		mon : 0,
		tue	: 1,
		wed	: 2,
		thu	: undefined,
		time : {
			morning : "5-11",
			night	: "19-22"
		}
	}

	console.log(typeof obj);	//object
	console.log(typeof obj.mon);	//number
	console.log(typeof obj.thu);	//undefined
	console.log(typeof obj.time);	//object
	console.log(typeof obj.time.night);	//string

	console.log(typeof obj.toString);	//function

	console.log(obj.hasOwnProperty('number'));	//true
	console.log(obj.hasOwnProperty('boolean'));	//false