Angular Components

In general a component controls a part of the screen or a view. Angular creates, updates, and destroys components as the user moves through the application. Your app can take actions on component using life cycle hooks suck as ngOnInit().

@Component decorator identifies a class as a component. You can keep metadata here. A component usually accommodated by a view.

Component Interaction

• Using @Input parameters
• Event listeners with EventEmitter
• Parents call a @ViewChild()