What does 'MVC' stand for in AngularJS?
- Controller-Model-View
- Model-Controller-View
- Model-View-Controller
- View-Model-Controller
In AngularJS, 'MVC' stands for Model-View-Controller. This architectural pattern separates an application into three interconnected components: Model (data), View (UI), and Controller (logic).
How does AngularJS's view management facilitate the Single Page Application (SPA) approach?
- AngularJS manages views through iframes
- AngularJS relies on server-side rendering for views
- AngularJS requires separate HTML files for each view
- AngularJS uses client-side routing to load views dynamically
AngularJS facilitates the Single Page Application (SPA) approach by using client-side routing. This allows the application to load views dynamically without full-page reloads. With client-side routing, AngularJS can update the view based on the URL, providing a seamless and efficient user experience in SPA development. Understanding how view management contributes to SPA architecture is crucial for building modern web applications with AngularJS.
How does the ng-repeat directive function in AngularJS?
- It creates a new instance of the element for each item in a collection.
- It generates a table for each item in a collection.
- It repeats a block of HTML code for each item in a collection.
- It repeats the entire page for each item in a collection.
The ng-repeat directive in AngularJS is used to repeat a block of HTML code for each item in a collection. It is particularly useful for rendering lists and tables dynamically based on the data provided. Understanding how ng-repeat works is essential for efficiently displaying data in AngularJS applications and making the UI responsive to changes in the underlying data.
What is the primary purpose of event handlers in AngularJS controllers?
- Control data flow
- Define routing paths
- Handle HTTP requests
- Manage user interactions
The primary purpose of event handlers in AngularJS controllers is to manage user interactions. Event handlers in controllers respond to user input, such as button clicks or form submissions, and trigger appropriate actions in the application. By handling events, controllers play a crucial role in updating the model and view, ensuring a responsive and interactive user experience in AngularJS applications.
$scope's __________ feature allows for the automatic synchronization of data between the model and the view.
- dataBinding
- syncBinding
- twoWayBinding
- watch
$scope's twoWayBinding feature allows for the automatic synchronization of data between the model and the view. Two-way data binding in AngularJS enables a seamless connection between the model and the view, so changes in one automatically reflect in the other and vice versa. Understanding two-way data binding is fundamental for building dynamic and responsive user interfaces in AngularJS applications.
Describe a use case for a custom directive in AngularJS that manipulates DOM elements based on specific conditions.
- Building a Form Validation Directive
- Creating a Tooltip Directive
- Implementing Infinite Scrolling Directive
- Implementing Lazy Loading with a Directive
A use case for a custom directive in AngularJS that manipulates DOM elements based on specific conditions could be "Implementing Lazy Loading with a Directive." In this scenario, you can create a custom directive to load content dynamically as the user scrolls, improving the performance of the web page. Custom directives in AngularJS provide a powerful mechanism for extending the functionality of the framework to meet specific requirements. Understanding how to create and use custom directives is crucial for advanced AngularJS development.
How do you define a new module in AngularJS?
- angular.module() method
- defineModule() statement
- module.create() function
- ng-create-module directive
In AngularJS, you define a new module using the angular.module() method. This method allows you to create a module or retrieve an existing one. Modules play a crucial role in structuring AngularJS applications, and knowing how to define them is essential for organizing and managing the components of your application effectively.
How does the ng-switch directive enhance decision-making capabilities in the view?
- It allows the use of switch statements in the view.
- It conditionally renders content based on the evaluated expression.
- It dynamically switches between different views based on the provided conditions.
- It replaces if-else conditions with a more efficient decision-making mechanism.
The ng-switch directive in AngularJS enhances decision-making capabilities in the view by dynamically switching between different views based on the provided conditions. It acts as a more expressive and efficient alternative to using multiple if-else conditions in the view. With ng-switch, the view can adapt and display different content based on the evaluated expressions, providing a cleaner and more readable way to handle complex conditional rendering in AngularJS applications.
What role does scope play in AngularJS's two-way data binding mechanism?
- Scope acts as a mediator
- Scope synchronizes data
- Scope triggers events
- Scope updates the DOM
In AngularJS's two-way data binding mechanism, the Scope plays the role of synchronizing data between the model and the view. Any changes made in the model or the view are automatically reflected in the other, ensuring real-time updates. This bidirectional data flow simplifies development and enhances the responsiveness of AngularJS applications.
_________ directive in AngularJS allows you to manipulate CSS classes on an element based on scope data.
- ng-bind
- ng-class
- ng-model
- ng-style
The ng-class directive in AngularJS allows you to dynamically manipulate CSS classes on an HTML element based on the data in the scope. It is commonly used for conditional styling, where the presence or absence of a class depends on certain conditions. Understanding how to use ng-class is crucial for creating dynamic and responsive user interfaces in AngularJS applications.