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<html lang="ko">

<head>
	<meta charset="UTF-8">
	<title>JavaScript String Method</title>
</head>

<body>

	<h1>문자열의 대소문자 변환</h1>

	<script>
		var str = "JavaScript";

		document.write(str.toUpperCase() + "<br>"); // JAVASCRIPT
		document.write(str.toLowerCase()); 			// javacript
	</script>
	
</body>

</html>