Which Route Guard method should be implemented to decide whether navigation to a route should be allowed?
- canActivate
- canActivateChild
- canDeactivate
- canLoad
In Angular, the canActivate method of a Route Guard should be implemented to decide whether navigation to a route should be allowed.
Why might you want to use async/await syntax in your Protractor tests?
- To improve test performance
- To make tests slower
- To reduce code complexity
- To synchronize operations
Using async/await syntax in Protractor tests helps synchronize operations and handle asynchronous tasks, ensuring more reliable and stable tests.
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.
When you want to bind a DOM event to a method in your component class, you use event binding.
- event binding
- interpolation binding
- property binding
- two-way binding
In Angular, event binding is used to bind a DOM event to a method in your component class, allowing you to respond to user interactions.
If you need to multicast a single source Observable to multiple observers, you would use a _____.
- forkJoin
- multicast
- subscribe
- toPromise
If you need to multicast a single source Observable to multiple observers, you would use a multicast.
The queryParamsHandling property of the _______ object allows you to specify how Angular should merge query parameters with the current query parameters.
- ActivatedRoute
- ActivatedRouteSnapshot
- Router
- RouterStateSnapshot
The queryParamsHandling property of the Router object allows you to specify how Angular should merge query parameters with the current query parameters.
You are working on an Angular application where a component is making multiple HTTP requests and you notice that the component is causing memory leaks. What approach can you use to solve this issue while making the code cleaner?
- Implement garbage collection strategies
- Manually unsubscribe from observables
- Use HttpClientInterceptor
- Use the async pipe
To solve memory leaks and make the code cleaner, you can use the async pipe, which automatically manages subscriptions and unsubscribes when the component is destroyed.
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.