Book Image

Hands-On TypeScript for C# and .NET Core Developers

By : Francesco Abbruzzese
5 (1)
Book Image

Hands-On TypeScript for C# and .NET Core Developers

5 (1)
By: Francesco Abbruzzese

Overview of this book

Writing clean, object-oriented code in JavaScript gets trickier and complex as the size of the project grows. This is where Typescript comes into the picture; it lets you write pure object-oriented code with ease, giving it the upper hand over JavaScript. This book introduces you to basic TypeScript concepts by gradually modifying standard JavaScript code, which makes learning TypeScript easy for C# ASP.NET developers. As you progress through the chapters, you'll cover object programming concepts, such as classes, interfaces, and generics, and understand how they are related to, and similar in, both ES6 and C#. You will also learn how to use bundlers like WebPack to package your code and other resources. The book explains all concepts using practical examples of ASP.NET Core projects, and reusable TypeScript libraries. Finally, you'll explore the features that TypeScript inherits from either ES6 or C#, or both of them, such as Symbols, Iterables, Promises, and Decorators. By the end of the book, you'll be able to apply all TypeScript concepts to understand the Angular framework better, and you'll have become comfortable with the way in which modules, components, and services are defined and used in Angular. You'll also have gained a good understanding of all the features included in the Angular/ASP.NET Core Visual Studio project template.
Table of Contents (16 chapters)

Summary

Angular offers an advanced Dependency Injection framework capable of injecting services recursively into the constructor of Angular pipes, components, and directives. A significant degree of flexibility is reached by searching services within two hierarchies of containers: the hierarchy of component instances, and the hierarchy of lazy loaded modules. The HttpClient class is capable of handling easily all HTTP Verbs, while returning JavaScript data structures directly. It also offers the possibility of accessing lower-level entities, such as headers and progress events.

Angular routing features handle nested routes, and multiple router outlets, in a simple way. The developer has full control of routing dynamics through Angular guards that control route activation/deactivation and module loading. Modules may be lazy loaded and loaded in the background.

Angular CLI automatically...