isArray tutorial in JavaScript

 <!DOCTYPE html>

<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>isArray JavaScript</title>
    <script>
        var a = ["Sanjay", "Aman", "Rehman"];
        document.write(a + "<br><br>");
        var b = Array.isArray(a);
        document.write(b + "<br><br>");
        var c = 10;
        var d = Array.isArray(c);
        document.write(d + "<br><br>");
        var e = "Rahul";
        var f = Array.isArray(e);
        document.write(f + "<br><br>");
        if (Array.isArray(a) == true) {
            document.write("a is an Array<br>");
        }
        else {
            document.write("a is not an Array<br>");
        }
        if (Array.isArray(c) == true) {
            document.write("c is an Array<br>");
        }
        else {
            document.write("c is not an Array<br>");
        }
        if (Array.isArray(e) == true) {
            document.write("e is an Array<br>");
        }
        else {
            document.write("e is not an Array<br>");
        }
    </script>
</head>

<body>
</body>

</html>


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