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	<meta charset="UTF-8">
	<title>JavaScript Array Object</title>
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<body>

	<h1>reduce() 메소드</h1>

	<script>
		var arr = [1, 2, 3, 4, 5];
		function sumOfValues(x, y) {
			return x - y;
		}

		document.write(arr.reduce(sumOfValues));	// 1 - 2 - 3 - 4 - 5 = -13
	</script>
	
</body>

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