TypeScript 4 Design Patterns and Best Practices: Discover effective techniques and design patterns for every programming task

In the editorial review, the book "TypeScript 4 Design Patterns and Best Practices" is praised for its clear explanations, detailed content, and concrete use cases. The reviewer expresses satisfaction with their purchase but wishes that the book was longer, as they found the first half to be terrific, while the second half lacked depth. However, the reviewer does not recommend the book for new TypeScript developers, as it assumes knowledge of advanced features and does not provide sufficient explanations for them. The book primarily focuses on classic object-oriented design patterns, with clean UML diagrams, example TypeScript code, and explanations of how the patterns work and when they are helpful. The author also includes common criticisms of each pattern and provides guidance on writing tests using Jest. The reviewer has a few complaints about the book. Firstly, test code is no longer included after the first half, which disappointed the reviewer, especially for the more complex patterns. Secondly, the book does not mention the popular MVC pattern, which the reviewer finds odd. Lastly, the final four chapters, which cover functional and reactive patterns, as well as general programming topics like DDD and SOLID, are criticized for being too fast-paced and shallow. The reviewer feels that more depth and coverage should have been provided for these topics. In summary, the book is recommended for mid-level TypeScript developers seeking to enhance their code structure with OOP patterns. The content on functional programming, while helpful, is limited to only 50 pages. The reviewer hopes that the author expands upon these topics in future editions.