To submit a form in Angular, you typically bind the submit event to a method in your component class using _____ .
- formAction
- formSubmit
- ngSubmit
- submitForm
To submit a form in Angular, you typically bind the submit event to a method in your component class using ngSubmit.
How can you pass data to a Route Guard in Angular?
- Direct function argument
- Query parameters
- Router configuration
- Shared service
In Angular, you can pass data to a Route Guard by using a Shared service to store and share data between components and guards.
When a service is provided at the root level, it is available throughout the entire _____.
- application
- application module
- component
- module
When a service is provided at the root level, it is available throughout the entire application.
You are building an admin panel where certain routes should only be activated if the user has the required permissions. How can you utilize Route Resolvers to ensure that the data indicating permission is fetched before navigation?
- Implement an Angular Service to fetch data
- Include a custom Angular directive
- Use a Route Resolver
- Utilize Route Guards
To ensure that data indicating permissions is fetched before navigation, you can utilize a Route Resolver. The resolver can fetch the required data and halt route activation until the data is available and evaluated for permissions.
In Angular, a service is typically injected into a component's constructor through the component's _____.
- constructor
- ngInject
- ngOnChanges
- ngOnInit
In Angular, a service is typically injected into a component's constructor through the component's constructor.
In NgRx, the _____ is responsible for changing the state based on the action received.
- Dispatcher
- Effect
- Reducer
- Selector
In NgRx, the Reducer is responsible for changing the state based on the action received. A reducer defines how the state should change.
When using Jasmine for unit testing in Angular, what function is used to create a group of related tests?
- afterEach()
- beforeAll()
- describe()
- it()
In Jasmine, the describe() function is used to create a group of related tests, which helps organize and structure your test suite.
In Angular, when using a hot observable, what happens to the data emissions when there are no subscribers?
- Data emissions are buffered and sent to the next subscriber when they subscribe.
- Data emissions are cached and sent to the first subscriber who subscribes.
- Data emissions are lost if there are no subscribers.
- Data emissions are sent to a separate storage location for later retrieval.
When using a hot observable in Angular, data emissions are lost if there are no subscribers. They are not cached or buffered for future subscribers.
You are writing a test for an Angular component that renders a list of items. You want to test that when a new item is added, it is correctly displayed in the component. Which testing technique or utility would be best suited for this?
- End-to-End Testing with Protractor
- Integration Testing with Karma and Jasmine
- No testing needed - it's an Angular feature
- Unit Testing with TestBed
For testing component behavior in isolation, Unit Testing with TestBed is the most suitable approach. It allows you to create an isolated testing environment for the component.
What is the role of fixture in Angular component tests?
- Hold data
- Manage test configuration
- Render the component
- Simulate user interactions
The role of the fixture in Angular component tests is to render the component for testing and provide a handle for simulating user interactions.