How to make a .io game [closed]

I need help creating a game with the top-down cartoon style of a .io game, I know that .io is the domain it is commonly used for these types of addicting games. I would like some help with the JavaScript, I can most likely handle the HTML and CSS (as I know most of it.) I would like to learn JavaScript if someone could tell me a good up-to-date website that teaches for free. I need someone to help me with making the core JS that is needed and, as I understand you need node.JS and Socket.io am I correct, and will you help me?