How does Angular Elements enable the usage of Angular components in non-Angular environments?
- By converting components to Web Components
- By embedding Angular components as iframes
- By running Angular components in iframes
- By using Angular services for integration
Angular Elements enables the usage of Angular components in non-Angular environments by converting components to Web Components, making them platform-agnostic and usable in different frameworks or plain HTML pages.
To navigate to a route conditionally based on the data fetched, you can use a Route Resolver along with the _____ Router Event.
- Activate
- Deactivate
- Navigate
- Resolve
To navigate to a route conditionally based on the data fetched, you can use a Route Resolver along with the Resolve Router Event. The Resolve event allows you to fetch data before navigating to the route.
How can you ensure that an Observable sequence retries a specific number of times after encountering an error before finally failing?
- catchError with a custom error handler
- finalize with a custom completion handler
- repeatWhen with a custom completion handler
- retryWhen with a custom error handler
To ensure that an Observable sequence retries a specific number of times after an error, you can use the retryWhen operator with a custom error handler.
The _____ decorator allows you to access route parameters within an Angular component.
- ActivatedRoute
- ParamInjector
- RouteParam
- RouterParam
The ActivatedRoute decorator allows you to access route parameters within an Angular component and retrieve data from the URL.
What type of data binding is used when you want to send data from a component's class to its template?
- Event binding
- Interpolation binding
- One-way data binding
- Two-way data binding
In Angular, Two-way data binding is used when you want to send data from a component's class to its template, allowing data to flow in both directions between the component and the template.
You have an Angular form where users can input an email address. You want to check in real-time whether the email address is already registered in your system. Which type of validation would be suitable for this?
- Async Validators that perform server-side checks.
- Built-in Validators like required and email.
- Custom Synchronous Validators with JavaScript functions.
- Pattern Validators with regular expressions.
To check in real-time whether an email address is already registered, you should use Async Validators that perform server-side checks, allowing you to query the server for existing email addresses.
To test directives with dependencies, Angular provides the _______ class which allows you to inject dependencies and spy on their usage.
- ComponentFixture
- TestBed
- TestBedDependency
- TestBedStub
To test directives with dependencies, Angular provides the TestBed class, which allows you to configure testing modules and inject dependencies.
In NgRx, the _____ property of an action usually contains additional information or context.
- Action
- Meta
- Payload
- Type
In NgRx, the Meta property of an action usually contains additional information or context that can be helpful when processing the action.
In template-driven forms, form controls are automatically created by Angular using the _____.
- FormControlDirective
- FormsModule
- NgModel
- TemplateDirective
In template-driven forms, form controls are automatically created using the NgModel directive.
In Angular, the _____ class is used to create form controls in reactive forms.
- FormBuilder
- FormControl
- FormGroup
- ReactiveFormsModule
In Angular, the FormControl class is used to create form controls in reactive forms.