Edit in JSFiddle

$(document).bind('keydown', 'shift+s', saveShortcut);

function saveShortcut(){
    document.getElementById("action").innerHTML = "Saved!";
    return false;
}

<html>
    
    <head></head>
    
    <body>
        <div>Key Code: <span id="action">Press shift+s...</span>

        </div>
    </body>

</html>