Book Image

Learning Angular for .NET Developers

By : Rajesh Gunasundaram
Book Image

Learning Angular for .NET Developers

By: Rajesh Gunasundaram

Overview of this book

Are you are looking for a better, more efficient, and more powerful way of building front-end web applications? Well, look no further, you have come to the right place! This book comprehensively integrates Angular version 4 into your tool belt, then runs you through all the new options you now have on hand for your web apps without bogging you down. The frameworks, tools, and libraries mentioned here will make your work productive and minimize the friction usually associated with building server-side web applications. Starting off with building blocks of Angular version 4, we gradually move into integrating TypeScript and ES6. You will get confident in building single page applications and using Angular for prototyping components. You will then move on to building web services and full-stack web application using ASP.NET WebAPI. Finally, you will learn the development process focused on rapid delivery and testability for all application layers.
Table of Contents (16 chapters)
Title Page
About the Author
About the Reviewers
Customer Feedback


Decorators enable us to extend a class or object by adding behaviors without modifying the code. Decorators wrap the class with extra functionality. They can be attached to a class, property, method, parameter, and accessor. In ECMAScript 2016, decorators are proposed to modify the behavior of a class. Decorators are prefixed with the @ symbol and a decorator name that resolves to a function called at runtime.

The following code snippet shows the authorize function, and it can be used as the @authorize decorator on any other class:

function authorize(target) { 
    // check the authorization of the use to access the "target" 

Class decorators

Class decorators are declared before the class declaration. Class decorators can observe, modify, and replace the definition of a class by applying to the constructor of that class. The signature of ClassDecorator in TypeScript is as illustrated:

declare type ClassDecorator = <TFunction extends Function>(target: TFunction) => TFunction...