Book Image

Learning Angular - Fourth Edition

By : Aristeidis Bampakos, Pablo Deeleman
5 (1)
Book Image

Learning Angular - Fourth Edition

5 (1)
By: Aristeidis Bampakos, Pablo Deeleman

Overview of this book

As Angular continues to reign as one of the top JavaScript frameworks, more developers are seeking out the best way to get started with this extraordinarily flexible and secure framework. Learning Angular, now in its fourth edition, will show you how you can use it to achieve cross-platform high performance with the latest web techniques, extensive integration with modern web standards, and integrated development environments (IDEs). The book is especially useful for those new to Angular and will help you to get to grips with the bare bones of the framework to start developing Angular apps. You'll learn how to develop apps by harnessing the power of the Angular command-line interface (CLI), write unit tests, style your apps by following the Material Design guidelines, and finally, deploy them to a hosting provider. Updated for Angular 15, this new edition covers lots of new features and tutorials that address the current frontend web development challenges. You’ll find a new dedicated chapter on observables and RxJS, more on error handling and debugging in Angular, and new real-life examples. By the end of this book, you’ll not only be able to create Angular applications with TypeScript from scratch, but also enhance your coding skills with best practices.
Table of Contents (17 chapters)
Other Books You May Enjoy


As our applications scale and grow, there will be a time when we need to organize our code better and make it sustainable and reusable. Modules are a great way to accomplish these tasks, so let's look at how they work and how we can implement them in our application.

A module works at a file level, where each file is the module itself, and the module name matches the filename without the .ts extension. Each member marked with the export keyword becomes part of the module's public API. Consider the following module that is declared in a my-service.ts file:

export class MyService {
    getData() {}

To use the preceding module and its exported class, we need to import it into our application code:

import { MyService } from './my-service';

The ./my-service path is relative to the location of the file that imports the module. If the module exports more than one artifact, we place them inside the curly braces one by one, separated with a comma:

export class...