Learning Angular 2 Directives (Video 8)

This video tutorial guides viewers through implementing a feature in an Angular application. It covers creating and testing components, handling and rendering data dynamically, and using services to fetch external data. The tutorial emphasizes best practices, such as using external HTML templates and Angular directives, and concludes with testing the application. Key concepts include components, services, data binding, and Angular directives.

What is the purpose of using a template URL in Angular components?

• To compile the template into a TypeScript file

• To externalize the template into a separate HTML file

• To inline the template within the component

• To convert the template into a JSON object

Which Angular directive is used to iterate over an array and render elements dynamically?

• NgIf

• NgFor

• NgSwitch

• NgModel

Why is it considered best practice to delegate HTTP calls to a dedicated Angular service?

• To separate concerns and improve code maintainability

• To improve the performance of the application

• To avoid using TypeScript in components

• To reduce the number of components

What is the role of the Injectable decorator in Angular services?

• To inline the service within the component

• To compile the service into JavaScript

• To convert the service into a component

• To make the service available for dependency injection

How can you register a service as a provider in an Angular component?

• By using the 'bootstrap' array

• By using the 'providers' property

• By using the 'declarations' array

• By using the 'imports' array

What is the difference between providers and view providers in Angular?

• Providers are for modules, view providers are for templates

• Providers are for directives, view providers are for pipes

• Providers are inherited by child components, view providers are not

• Providers are for services, view providers are for components

Which syntax is used in Angular to bind a click event to a function?

• Curly braces

• Square brackets

• Angle brackets

• Round braces