(The Internet era has entered the second half, and the industry environment has undergone major changes. Internet people, especially technicians, how to continuously charge in the accelerated wave of science and technology and improve their own value is a challenge that must be faced at present. The course covers all the contents required for the actual development of the current front-end, deeply benchmarking the knowledge reserve and development skills of Alibaba P6 + level, and laying the foundation for source code reading and full stack development ability.)