Book Image

Learning Angular - Third Edition

By : Aristeidis Bampakos, Pablo Deeleman
Book Image

Learning Angular - Third Edition

By: Aristeidis Bampakos, Pablo Deeleman

Overview of this book

Angular, loved by millions of web developers around the world, continues to be one of the top JavaScript frameworks thanks to its regular updates and new features that enable fast, cross-platform, and secure frontend web development. With Angular, you can achieve high performance using the latest web techniques and extensive integration with web tools and integrated development environments (IDEs). Updated to Angular 10, this third edition of the Learning Angular book covers new features and modern web development practices to address the current frontend web development landscape. If you are new to Angular, this book will give you a comprehensive introduction to help you get you up and running in no time. 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. The book is especially useful for beginners to get to grips with the bare bones of the framework needed to start developing Angular apps. 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 (19 chapters)
1
Section 1: Getting Started with Angular
4
Section 2: Components – the Basic Building Blocks of an Angular App
9
Section 3: User Experience and Testability
15
Section 4: Deployment and Practice

Implementing core features

When we refer to core features in the application, we mean the following:

  • Services that are going to be used globally in our application, such as a local cache or data access service
  • Components that are going to be used only once, such as a header or footer component

In the following section, we will learn how to create a core service for handling local data.

Persisting data using local storage

In this application, we are going to use the Angular in-memory Web API that we have already seen in Chapter 6, Enrich Components with Asynchronous Data Services.

As we already know, it emulates the functionality of a backend API. Still, it keeps all data in memory, meaning that data will be gone when we refresh the browser, which is something that is not desirable. Thus, we are going to use the local storage of the browser as a means to persist it.

The local storage of the browser is an internal storage mechanism that can keep a limited...