script.html

<!DOCTYPE html>

<html>
    <body onLoad="runScript()">
        <h1>TTS script</h1>

        <script type="text/javascript" src="jquery-3.2.1.min.js"></script>
        <script type="text/javascript" src="haniilinkedlist_1.js"></script>
        <script type="text/javascript">

            function runScript()
            {
                var paramval = getURLParameter("q");
                var testList = new LinkedList();

                document.getElementById('demo').innerHTML = testList.say("test text");

                if(!paramval)
                {
                    window.location.hash = "#queryparamnotparsed";
                    return;
                }

                window.location.hash = "#" + paramval;
            }

            function getURLParameter(name)
            {
                // From stackoverflow.com/questions/11582512
                var regex = new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)');
                return decodeURIComponent((regex.exec(location.search) || [null, ''])[1].replace(/\+/g, '%20')) || null;
            }

        </script>

        <p id="demo"></p>
    </body>
</html>