Learning Angular 2 Directives (Video 10)

This video tutorial introduces Angular 2 concepts, focusing on creating a modal dialog for sensor selection. It covers styling components, encapsulation, and establishing two-way data binding using NgModel. The tutorial also explains how to handle events within the modal component and concludes with a discussion on encapsulation options in Angular.

What is the primary purpose of using a modal dialog in Angular 2?

• To enhance the visual appearance of the app

• To display a list of sensors

• To allow user interaction for specific tasks

• To manage global state

What is the main advantage of using view encapsulation in Angular 2?

• It simplifies the component creation process

• It enhances the security of the application

• It allows for faster rendering of components

• It prevents styles from leaking into other components

What is the initial step in creating a modal dialog component?

• Adding CSS styles

• Implementing the open function

• Setting up event listeners

• Creating a new file for the component

How can you hide the modal dialog initially?

• By setting the display property to none

• By using a Boolean variable to control visibility

• By setting its opacity to zero

• By removing it from the DOM

What directive is used for two-way data binding in Angular 2?

• NgIf

• NgModel

• NgBind

• NgFor

What is the purpose of the confirm function in the modal dialog?

• To close the modal dialog

• To save changes and trigger an event

• To reset the form fields

• To open a new modal dialog

Which encapsulation option supports native shadow DOM?

• Virtual

• None

• Native

• Emulated