Book Image

Learning TypeScript 2.x - Second Edition

By : Remo H. Jansen
Book Image

Learning TypeScript 2.x - Second Edition

By: Remo H. Jansen

Overview of this book

TypeScript is an open source and cross-platform statically typed superset of JavaScript that compiles to plain JavaScript and runs in any browser or host. This book is a step-by-step guide that will take you through the use and benefits of TypeScript with the help of practical examples. You will start off by understanding the basics as well as the new features of TypeScript 2.x. Then, you will learn how to work with functions and asynchronous programming APIs. You will continue by learning how to resolve runtime issues and how to implement TypeScript applications using the Object-oriented programming (OOP) and functional programming (FP) paradigms. Later, you will automate your development workflow with the help of tools such as Webpack. Towards the end of this book, you will delve into some real-world scenarios by implementing some full-stack TypeScript applications with Node.js, React and Angular as well as how to optimize and test them. Finally, you will be introduced to the internal APIs of the TypeScript compiler, and you will learn how to create custom code analysis tools.
Table of Contents (17 chapters)

SOLID principles, encapsulation, and polymorphism

In the early days of software development, developers used to write code with procedural programming languages. In procedural programming languages, the programs follow a top-to-bottom approach, and the logic is wrapped with functions.

New styles of computer programming, such as modular programming or structured programming, emerged when developers realized that procedural computer programs could not provide them with the desired level of abstraction, maintainability, and reusability.

The development community created a series of recommended practices and design patterns to improve the level of abstraction and reusability of procedural programming languages, but some of these guidelines required a certain level of expertise. To facilitate adherence to these guidelines, a new style of computer programming known as object-oriented...