12.1_findIndex().html

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

		var result = arr.findIndex(searchValue);

		document.writeln("Position of First value greater than 5 is: " + result);

		function searchValue(value){
			return value > 5;
		}
	</script>
</body>
</html>