What is the purpose of the updateOn property when creating a new FormControl instance?
- It defines the initial control value
- It determines when the control is updated
- It sets the control's required state
- It specifies when to submit the form data
The updateOn property when creating a new FormControl instance in Angular specifies when the control is updated, which affects how and when the form data is updated and submitted.
The Route Resolver uses the _____ method to load the data necessary for the route.
- fetch
- load
- resolve
- retrieve
The blank should be filled with resolve. The Route Resolver uses the resolve method to load the data necessary for the route.
To ensure that an Angular animation has completed before starting another one, you can use _______.
- Animation order
- Animation preconditions
- Animation sequencing
- Animation triggers
In Angular, to ensure that an animation has completed before starting another one, you can use Animation sequencing. This allows you to control the order of animations and ensure they run in sequence.
What is the advantage of using custom async validators in Angular forms?
- They enhance user experience
- They improve code maintainability
- They optimize server-side performance
- They simplify form creation and validation
The advantage of using custom async validators in Angular forms is that they enhance user experience by allowing you to perform asynchronous validation tasks, such as checking data with a server, without blocking the UI.
To control how Angular should handle navigation extras when reusing a route, you can configure the _____ option.
- RouteReuseStrategy
- LazyLoadingStrategy
- NavigationStrategy
- RoutingStrategy
To control how Angular should handle navigation extras when reusing a route, you can configure the RouteReuseStrategy option. This allows you to define the behavior of route reusability.
In the context of Angular Elements, what is the purpose of the createCustomElement() function?
- To create Angular modules
- To create custom HTML elements
- To define custom CSS styles
- To enable Angular routing for elements
In the context of Angular Elements, the createCustomElement() function is used to create custom HTML elements. It takes an Angular component and returns a custom element (Web Component) that can be used in non-Angular environments. This function allows Angular components to be utilized as custom elements with their own HTML tags.
What is a directive in Angular?
- A behavior added to DOM
- A component template
- A module definition
- A route configuration
In Angular, a directive is a behavior added to the Document Object Model (DOM) to extend its functionality. Directives are a way to create reusable components and add dynamic behavior to elements.
When debugging a failing Protractor test, what tool can you use to pause the test execution and inspect the browser's state?
- Browser developer console
- Node.js debugger (e.g., DevTools)
- Protractor's built-in debugger
- WebDriver's built-in debugger (WDB)
When debugging a failing Protractor test, you can use the Node.js debugger, such as Chrome DevTools, to pause the test execution and inspect the browser's state.
To create an Observable that immediately completes without emitting any values, you can use the _____ function.
- create
- empty
- interval
- of
To create an Observable that immediately completes without emitting any values, you can use the empty function.
How does the merge operator behave when combining multiple Observables?
- It combines the latest values from all Observables.
- It emits values from all Observables as they arrive.
- It emits values from the first Observable only.
- It waits for all Observables to complete before emitting values.
The merge operator in RxJS emits values from all Observables as they arrive, without waiting for them to complete.