JAVASCRIPT SWITCH DEFAULT CASE EXAMPLE
Run 
<!doctype html>
	<head>
		<title>JavaScript Switch Case</title>
	</head>
	<body>
		<h3>Switch Default Case Example</h3>

		<script>
            let a = 6;
            switch (a)
            {
                case 1: alert('case 1 has been executed');
                case 2:
                    alert("case 2 has been executed");
                case 3:
                    alert("case 3 has been executed");
                case 4:
                    alert("case 4 has been executed");
                default:
                    alert("default case executed, no matched case is found");
            }
        </script>
	</body>
</html>