12.1_copyWithin().html

<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title>Example copyWithin()</title>
</head>
<body>
	<script type="text/javascript">
		var arr = [1,2,3,4,5,6,7,8,9,10];

		/*arr.copyWithin(target)*/
		arr.copyWithin(2);
		document.writeln("arr.copyWithin(2): " + arr + "<br>");

		/*arr.copyWithin(target,start)*/
		arr.copyWithin(2,3);
		document.writeln("arr.copyWithin(2,3): " + arr + "<br>");

		/*arr.copyWithin(target,start,end)*/
		arr.copyWithin(1,2,4);
		document.writeln("arr.copyWithin(1,2,4): " + arr + "<br>");
	</script>
</body>
</html>