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<!DOCTYPE html>
<html lang="ko">

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

<body>

	<h1>자바스크립트 함수</h1>

	<script>
		function addNum(x, y) {
			return x + y;
		}
		document.write(addNum(2, 3));
	</script>
	
</body>

</html>

​x
 
<!DOCTYPE html>
<html lang="ko">
​
<head>
    <meta charset="UTF-8">
    <title>JavaScript Function</title>
</head>
​
<body>
​
    <h1>자바스크립트 함수</h1>
​
    <script>
        function addNum(x, y) {
            return x + y;
        }
        document.write(addNum(2, 3));
    </script>
    
</body>
​
</html>