Book Image

Angular Design Patterns and Best Practices

By : Alvaro Camillo Neto
2 (1)
Book Image

Angular Design Patterns and Best Practices

2 (1)
By: Alvaro Camillo Neto

Overview of this book

Single page applications (SPAs) have become the standard for most web experiences. Angular, with its batteries-included approach, has emerged as a powerful framework for simplifying the development of these interfaces by offering a comprehensive toolbox. This book guides you through the Angular ecosystem, uncovering invaluable design patterns and harnessing its essential features. The book begins by laying a strong foundation, helping you understand when and why Angular should be your web development framework of choice. The next set of chapters will help you gain expertise in component design and architecting efficient, flexible, and high-performing communication patterns between components. You’ll then delve into Angular's advanced features to create forms in a productive and secure way with robust data model typing. You'll also learn how to enhance productivity using interceptors to reuse code for common functionalities, such as token management, across various apps. The book also covers micro frontend architecture in depth to effectively apply this architectural approach and concludes by helping you master the art of crafting tests and handling errors effortlessly. By the end of this book, you'll have unlocked the full potential of the Angular framework.
Table of Contents (19 chapters)
1
Part 1: Reinforcing the Foundations
7
Part 2: Leveraging Angular’s Capabilities
12
Part 3: Architecture and Deployment

Improving the user experience using the defer command

The main intention behind the new HTML template flow control syntax was to have a new basis for building new possibilities in the framework’s templates. The first new feature made possible by the syntax is the defer instruction, with which it is possible to lazy load components directly from the HTML template.

We learned in Chapter 2, Organizing Your Application, that the best practice is to separate your application into functionality modules and configure Angular to load these modules in a lazy way. This means that the module and its components would only be loaded if the user accessed a certain route, resulting in smaller bundles and better performance of your application, especially if your user does not have a good internet connection (such as 3G).

The defer command has the same purpose but instead of working for modules, it works for standalone components. We studied standalone components in Chapter 11, Micro...