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

How to choose the correct operator

The RxJS library has an extensive number of operators that can help simplify your code and handle corner cases of asynchrony and even performance.

You don’t need to memorize all the operators and the ones we’ve seen so far will help you with the most common cases.

The library documentation has a Decision Tree page, and we’ll learn how to navigate that.

Enter the site (https://rxjs.dev/operator-decision-tree) and, here, we will navigate to an operator that we have already studied to exemplify the use of this tool.

Figure 9.2 – Operator Decision Tree

Figure 9.2 – Operator Decision Tree

Let’s go back to our form example. We need to fetch the exercise information from what the user’s typing – let’s assume that we don’t know which operator to choose.

We already have an observable, which is the valueChanges event in the Angular form, so on the first screen, we will choose the I have one...