(This course covers all fields of the big front-end and provides in-depth teaching on the whole stack of the traditional web front-end. For example, use front-end knowledge to develop AI, VR, AR, IOS, Android, PC, server, intelligent hardware, etc. At the same time, we will focus on the new development of JavaScript language, Vue source code analysis, front-end continuous integration solution summary, MV * framework in-depth analysis, front-end graphics, nodejs large site architecture, data structure and algorithm, extreme webapp performance optimization, etc.)