Book Image

Mastering TypeScript 3 - Third Edition

By : Nathan Rozentals
Book Image

Mastering TypeScript 3 - Third Edition

By: Nathan Rozentals

Overview of this book

TypeScript is both a language and a set of tools to generate JavaScript. It was designed by Anders Hejlsberg at Microsoft to help developers write enterprise-scale JavaScript. Starting with an introduction to the TypeScript language, before moving on to basic concepts, each section builds on previous knowledge in an incremental and easy-to-understand way. Advanced and powerful language features are all covered, including asynchronous programming techniques, decorators, and generics. This book explores many modern JavaScript and TypeScript frameworks side by side in order for the reader to learn their respective strengths and weaknesses. It will also thoroughly explore unit and integration testing for each framework. Best-of-breed applications utilize well-known design patterns in order to be scalable, maintainable, and testable. This book explores some of these object-oriented techniques and patterns, and shows real-world implementations. By the end of the book, you will have built a comprehensive, end-to-end web application to show how TypeScript language features, design patterns, and industry best practices can be brought together in a real-world scenario.
Table of Contents (16 chapters)
Free Chapter
TypeScript Tools and Framework Options

Object-oriented principles

Any application that we build should be assessed in terms of object-oriented best practices. Robert Martin published what is known as the SOLID design principles, which is an acronym for five different object-oriented best practices. Following these practices will help to ensure that the code we write is easy to maintain, easy to understand, easy to extend, and resilient to change. In our current fast-paced world, we generally don't have the luxury of taking extraordinary amounts of time to modify our applications in order to keep up with ever-changing requirements. The faster we can deliver updates to satisfy our business needs, the better chance we have of keeping ahead of our competition. Sticking to the SOLID design principles gives us a good foundation that will easily enable modifications to existing code in order to satisfy these rapidly...