cferdinandi/arrayIntersect.html Secret

## arrayIntersect.html
<!DOCTYPE html>
<html lang="en">

	<head>
		<meta charset="utf-8">
		<title>arrayIntersect()</title>
		<meta name="viewport" content="width=device-width, initial-scale=1.0">
	</head>

	<body>


		<script>
			/**
			 * Get the intersecting values between two arrays
			 * (c) Chris Ferdinandi, MIT License, https://gomakethings.com
			 * @param  {Array} arr1 The first array
			 * @param  {Array} arr2 The second array
			 * @return {Array}      The array of overlapping values
			 */
			function arrayIntersect (arr1, arr2) {
				return arr1.filter(function (item) {
					return arr2.includes(item);
				});
			}

			let wizards = ['Merlin', 'Gandalf', 'Ursula'];
			let magicalFolk = ['Gandalf', 'Radagast', 'Ursula', 'Morgana'];

			// returns ['Gandalf', 'Ursula']
			let overlap = arrayIntersect(wizards, magicalFolk);
			console.log(overlap);
		</script>

	</body>
</html>
	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="utf-8">
	<title>arrayIntersect()</title>
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	</head>

	<body>


	<script>
	/**
	* Get the intersecting values between two arrays
	* (c) Chris Ferdinandi, MIT License, https://gomakethings.com
	* @param {Array} arr1 The first array
	* @param {Array} arr2 The second array
	* @return {Array} The array of overlapping values
	*/
	function arrayIntersect (arr1, arr2) {
	return arr1.filter(function (item) {
	return arr2.includes(item);
	});
	}

	let wizards = ['Merlin', 'Gandalf', 'Ursula'];
	let magicalFolk = ['Gandalf', 'Radagast', 'Ursula', 'Morgana'];

	// returns ['Gandalf', 'Ursula']
	let overlap = arrayIntersect(wizards, magicalFolk);
	console.log(overlap);
	</script>

	</body>
	</html>