The process of synchronizing the UI with the underlying form model in Reactive Forms is called ______.
- data binding
- form synchronization
- form updating
- model binding
The process of synchronizing the UI with the underlying form model in Reactive Forms is called "model binding." It involves binding the form controls in your UI to the corresponding values in the form model, ensuring that any changes in the UI are reflected in the form model and vice versa, maintaining a two-way data binding relationship.
Which Route Guard is especially useful for feature modules that are lazy-loaded?
- CanActivate
- CanDeactivate
- CanLoad
- CanUnload
The CanLoad Route Guard is especially useful for feature modules that are lazy-loaded. It allows you to prevent the lazy-loaded module from being loaded if certain conditions are not met, such as authentication or authorization checks.
In the context of the ControlValueAccessor interface, which method is responsible for registering a callback to be triggered when the control's value changes in the UI?
- registerOnChange
- writeValue
- setViewValue
- registerOnTouched
In the context of the ControlValueAccessor interface, the registerOnChange method is responsible for registering a callback to be triggered when the control's value changes in the UI. This callback allows you to capture and respond to changes in the value of the form control. The other options (writeValue, setViewValue, registerOnTouched) have different purposes within the interface, such as updating values or handling touch events, but do not handle value change notifications.
A client asks for a feature where certain parts of the application should only be accessible to authenticated users. Which feature of Angular would you use to implement this?
- Angular Directives
- Data Binding
- Dependency Injection
- Route Guards
In Angular, you can implement access control for certain parts of the application by using Route Guards. Route Guards allow you to protect routes based on conditions, such as whether the user is authenticated. Data Binding, Dependency Injection, and Angular Directives are not specifically designed for access control.
How do you create a link in your template that navigates to a different route in Angular?
- Using the tag with an href attribute.
- Using the router-link directive.
- Using the navigateTo function.
- Using the ng-route module.
In Angular, you create a link in your template that navigates to a different route using the router-link directive. This directive is specifically designed for routing and allows you to define the target route as an attribute. The other options, such as using an tag with href, a navigateTo function, or the ng-route module, are not standard ways to handle routing in Angular and may not work as expected.
Which state management library focuses on simplicity and minimizes boilerplate code?
- Ngxs
- MobX
- Redux
- Vuex
Ngxs is a state management library for Angular that emphasizes simplicity and minimizes boilerplate code. It provides a clean and straightforward way to manage state within Angular applications, making it an attractive option for developers looking for a more straightforward approach to state management.
Your application's end-users have reported intermittent errors. You decide to use source maps to debug the production build of your Angular application. Which of the following considerations is essential when using source maps in production?
- Disable source maps in production for better performance
- Protect the source maps from public access
- Store source maps in the same directory as your production code
- Use unminified code in production
It's crucial to protect source maps from public access in a production environment to prevent exposing sensitive information and source code to potential attackers. Source maps should not be accessible to end-users.
To designate a place in your template where the router should display the components for that route, use the ________ directive.
- ngRoute
- router-view
- ng-display
- route-render
To designate a place in your template where the router should display the components for that route, use the router-view directive. This directive is used in the template to specify where the routed components should be rendered. The other options mentioned, like ngRoute, ng-display, and route-render, are not Angular's standard directives for this purpose.
Which command-line tool is primarily used for initializing and managing Angular projects?
- ng create
- ng init
- ng new
- ng start
The correct command for initializing and managing Angular projects is ng new. It's used to create a new Angular application by setting up the project structure, configuration files, and initial dependencies.
After creating a dynamic component, if you want to access its instance and modify some properties, you can obtain it through the ______ property of the reference.
- instance
- componentRef
- componentInstance
- dynamicComponent
After creating a dynamic component in Angular, if you want to access its instance and modify some properties, you can obtain it through the componentInstance property of the reference (e.g., ComponentRef). This allows you to interact with the dynamically created component and make changes as needed. The other options are not the standard properties for accessing the instance.