At its core, an Angular 2 component is a class that is responsible for exposing data to the view and implementing user interaction logic. An Angular 2 component can be compared to the controller, scope, and view of Angular 1.
How does Angular 2 know how to treat our class as a component? We need to attach metadata to the class to tell Angular how to treat it.
The term metadata describes the additional information that we add to our code. This information is used by Angular 2 at runtime.
In this chapter, we will cover the following topics:
The anatomy of an Angular 2 component
The component selector
View encapsulation (the shadow DOM)
Anatomy of an Angular 2 component
In Chapter 2, Setting Up an Angular 2 Development Environment with angular-cli, setting the development environment, we generated an Angular 2 project from scratch using the
angular-cli tool and served it to the browser. If you haven't done so, refer...