I am a developer who has been working for 11 years. I have been working on government-oriented projects using the e-government standard framework. I have always created services using a set pattern (SpringFrameWork, HTML, CSS, jquery, ES6, ES5), but I wanted to try something new. At first, I studied from books. There were many books that had poor explanations and felt like they were just passing over things, so I took the instructor's book and class. I don't regret my choice.^^ I really enjoyed the class. There was nothing boring while listening. It went into my head well. I am very satisfied. I will follow the roadmap and continue on. ^^