Slice and Splice Array tutorial in JavaScript

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<head>
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    <title>Slice and Splice Array Methods JavaScript</title>
    <script>
        // Index will be count as shown for below Array :
        // var a = [0, 1, 2, 3, 4];
        // var a = [-5, -4, -3, -2, -1];
        var a = ["Sanjay", "Aman", "Rehman", "Rahul", "Karan"];
        document.write(a + "<br><br>");
        var b = a.slice(1, 4);
        var c = a.slice(1);
        var d = a.slice(2);
        var e = a.slice(3);
        var f = a.slice(-1);
        var g = a.slice(-2);
        var h = a.slice(-3);
        var i = a.slice(-4, -2);
        var j = a.slice(-4, -1);
        document.write(b + "<br><br>");
        document.write(c + "<br><br>");
        document.write(d + "<br><br>");
        document.write(e + "<br><br>");
        document.write(f + "<br><br>");
        document.write(g + "<br><br>");
        document.write(h + "<br><br>");
        document.write(i + "<br><br>");
        document.write(j + "<br><br><br><br>");

        // Using "splice()" we can add or delete value from existing array
        // Using "slice()", we can make a new array of any selected value from existing array
        var k = ["Sanjay", "Aman", "Rehman", "Rahul"];
        document.write(k + "<br><br>");
        // k.splice(2,0,"Neha","Karan");
        document.write(k + "<br><br>");
        // k.splice(2,1,"Neha","Karan");
        document.write(k + "<br><br>");
        // k.splice(2,2,"Neha","Karan");
        document.write(k + "<br><br>");
        // k.splice(-2,1,"Neha","Karan");
        document.write(k + "<br><br>");
        k.splice(2, 2);
        document.write(k + "<br><br>");
    </script>
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<body>
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