Book Image

Learning Angular, Fourth Edition - Fourth Edition

By : Aristeidis Bampakos, Pablo Deeleman
5 (2)
Book Image

Learning Angular, Fourth Edition - Fourth Edition

5 (2)
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)
15
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16
Index

Building custom directives

Custom directives encompass a vast world of possibilities and use cases, and we would need an entire book to showcase all the intricacies and possibilities they offer. In a nutshell, they allow you to attach advanced behaviors to elements in the DOM or modify their appearance.

If a directive has a template attached, then it becomes a component. In other words, components are Angular directives with a view. This rule comes in handy when we want to decide whether we should create a component or a directive for our needs. If we need a template, we create a component; otherwise, we make it a directive.

As we have already learned, directives mainly fall into two categories: structural and attribute. In the following sections, we will showcase how to create a directive for each category from scratch.

Displaying dynamic data

We have all found ourselves in a situation where we want to add copyrighted information to our applications. Ideally...