I will not only fix any bugs(errors) your javascript code might have, but I will help you with any html css problems such as making your site or web app responsive to mobile devices as well. I will also leave comments to teach you the problems with your code and help you learn how to fix them yourself in the future(if you wish). I will do as many revisions as possible to make your site or web app work fluidly. Please ask questions before offering on gig, thank you.