Show and Hide div on single button click using jquery

<!doctype html>
<html lang="en">

    <head>
        <meta charset="utf-8">
        <title>toggle demo</title>
        <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
    </head>

    <body>
        <button>Toggle</button>
        <div>Hello</div>
        <script>
            $("button").click(function()
            {
                $("div").toggle();
            });
        </script>
    </body>

</html>