Learning Angular 2 Directives (Video 12)

This video tutorial covers the implementation of attribute directives in Angular, focusing on creating a reusable modal dialog. It explains how to use the host listener and input decorators to bind events and pass data to directives. The tutorial demonstrates the process of making a modal dialog declarative by attaching attributes to elements, allowing for easier reuse and customization. The video concludes with testing the implementation and summarizing the key concepts learned.

What is the primary goal of using attribute directives in Angular?

• To modify the behavior of existing elements

• To manage application state

• To create new HTML elements

• To style components

Which Angular core element is imported to create a directive?

• @Component

• @Service

• @Directive

• @Module

What is the purpose of the selector in a directive?

• To identify the directive in HTML

• To define the directive's template

• To specify the directive's CSS styles

• To manage the directive's lifecycle

How does the HostListener decorator enhance a directive?

• By styling the directive

• By allowing the directive to listen to events

• By providing a template for the directive

• By managing the directive's state

What is the role of the Input decorator in a directive?

• To output data from the directive

• To manage the directive's lifecycle

• To bind properties to the directive

• To style the directive

What is the final step in making a modal dialog reusable with a directive?

• Adding more CSS styles

• Creating a new component

• Moving the confirm function to the directive

• Using a different framework

What concept is highlighted as a key learning in the video?

• State management

• Routing

• Directives and their relation to components

• Service workers