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	<meta charset="UTF-8">
	<title>JavaScript Object Method</title>
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	<h1>객체의 isPrototypeOf() 메소드</h1>

	<script>
		var day = new Date(); 	// Date 객체를 생성함.
		
		// 객체 day의 프로토타입이 Date.prototype인지를 검사함.
		document.write(Date.prototype.isPrototypeOf(day) + "<br>");	// true
		document.write(Date.prototype.isPrototypeOf(new String()));	// false
	</script>
	
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