If a pipe takes multiple input values, how should it be tested to ensure all cases are covered?
- Rely on integration tests to cover all possible input combinations
- Skip testing for cases with complex input values
- Use a single test case with multiple input values and expected results
- Write separate test cases for each combination of input values
To ensure all cases are covered when testing a pipe with multiple input values, you should write separate test cases for each combination of input values.
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.
How can a parent component communicate with a child component without using @Input or @Output?
- Use BehaviorSubject and Renderer2
- Use Dependency Injection and ElementRef
- Use EventEmitter and ViewChildren
- Use ViewChild and ElementRef
A parent component can communicate with a child component without @Input or @Output by using ViewChild and ElementRef to access the child's properties and methods directly.
To create a dynamic form in Angular, developers often use the ____ class to programmatically add form controls.
- FormArray
- FormControl
- FormGroup
- NgForm
To create a dynamic form in Angular, developers often use the FormArray class to programmatically add form controls. A FormArray is used when you need to manage a list of form controls.
You are building a complex form that needs to enable or disable sections of the form based on user input. Which type of form would be more suitable to implement this, and why?
- Both are equally suitable
- None of the above
- Reactive forms
- Template-driven forms
To enable or disable sections of a form based on user input, Reactive forms would be more suitable because they provide greater programmatic control and flexibility.
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.