Book Image

Switching to Angular - Third Edition

By : Minko Gechev
Book Image

Switching to Angular - Third Edition

By: Minko Gechev

Overview of this book

Align your work to stable APIs of Angular, version 5 and beyond, with Angular expert Minko Gechev. Angular is the modern Google framework for you to build high-performance, SEO-friendly, and robust web applications. Switching to Angular, Third Edition, shows you how you can align your current and future development with Google's long-term vision for Angular. Gechev shares his expert knowledge and community involvement to give you the clarity you need to confidently switch to Angular and stable APIs. Minko Gechev helps you get to grips with Angular with an overview of the framework, and understand the long-term building blocks of Google's web framework. Gechev then gives you the lowdown on TypeScript with a crash course, so you can take advantage of Angular in its native, statically typed environment. You'll next move on to see how to use Angular dependency injection, plus how Angular router and forms, and Angular pipes, are designed to work for your projects today and in the future. You'll be aligned with the vision and techniques of the one Angular, and be ready to start building quick and efficient Angular applications. You'll know how to take advantage of the latest Angular features and the core, stable APIs you can depend on. You'll be ready to confidently plan your future with the Angular framework.
Table of Contents (10 chapters)

Defining Angular directives

Now that we've built a simple Angular component, let's continue our journey by understanding the Angular directives.

Using Angular directives, we can apply different behavioral or structural changes over the DOM. In this example, we will build a simple tooltip directive.

In contrast to components, directives do not have templates. Another core difference between these two concepts is that the given HTML element may have only a single component, but multiple directives on it. In other words, directives augment the elements compared to components that are the actual elements in our views.

Angular's official style guide recommends using directives as attributes, prefixed with a namespace. Keeping this in mind, we will use the tooltip directive in the following way:

<div saTooltip="Hello world!"></div> 

In the preceding...