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

Communication from the child component – using 
@Output

We studied how parent components, which can be either smart or presentational, can communicate with their child components by using attributes marked with the @Input decorator.

However, when we need the opposite, the child component passes some information to the parent. As we saw in the previous section, business rule processing should ideally happen in the Smart component. For this type of communication, we mark attributes with the @Output decorator.

Let’s create a button for adding an item to our diary. We’ll see the use of forms in Chapter 6, Handling User Input: Forms, but here we want to focus on the interaction between components.

Using the Angular CLI, we will create the new component using this command:

ng g c diary/new-item-button

In the new component’s template, let’s move the diary button template into the component:

<button
  class="rounded...