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

	<script>
		function Dog(color, name, age) {
			this.color = color;
			this.name = name;
			this.age = age;
		}
		var myDog = new Dog("흰색", "마루", 1);
		// color 프로퍼티의 enumerable 속성을 false로 설정함.
		Object.defineProperty(myDog, 'color', { enumerable : false} );
		
		document.write(myDog.propertyIsEnumerable("color") + "<br>");	// false
		document.write(myDog.propertyIsEnumerable("name") + "<br>");	// true
		document.write(myDog.propertyIsEnumerable("age"));				// true
	</script>
	
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