AngularJS encourages the use of Directives to isolate DOM manipulations in event handlers for better testability and modularity. Directives are a powerful feature in AngularJS that allows developers to create reusable components with encapsulated behavior. By leveraging directives, developers can achieve cleaner and more maintainable code by separating DOM manipulations from controller logic.

In AngularJS, expressions can directly call functions defined in the Controller scope. The Controller scope holds the application data and functions, and expressions can access and invoke these functions directly. This feature enhances the flexibility of AngularJS applications by allowing seamless integration of logic defined in the Controller with the HTML templates.

Data Binding is the feature of AngularJS that helps in binding the view to the model. With data binding, changes in the model are automatically reflected in the view, and vice versa. This bidirectional synchronization simplifies the development process, reduces boilerplate code, and enhances the responsiveness of AngularJS applications. Understanding data binding is crucial for effective development in AngularJS.

The primary purpose of data binding in AngularJS controllers is to establish a connection between the model and the view. Data binding allows automatic synchronization of data between these two layers, ensuring that changes in the model are reflected in the view and vice versa. This simplifies the process of keeping the user interface up-to-date with the underlying data and enhances the responsiveness of AngularJS applications. Understanding data binding is fundamental to building dynamic and interactive user interfaces.

In AngularJS, handling global events in controllers can be achieved using $rootScope. While $rootScope provides a way to broadcast events globally, developers should be cautious about its impact on application performance. Broadcasting global events can lead to increased coupling between components and potential performance bottlenecks. Understanding the trade-offs is essential for maintaining a well-performing AngularJS application.

In a complex AngularJS application scenario, such as a Data Visualization Dashboard, view management plays a crucial role in user experience enhancement. The efficient organization and updating of multiple views contribute to a visually rich and interactive dashboard. AngularJS provides features like dynamic data binding and modular components, enabling developers to create a seamless and engaging user experience in scenarios where view management is paramount.

The $compile service in AngularJS is significant as it compiles HTML templates and binds them to the scope. During the compilation process, AngularJS translates the declarative HTML into executable code, linking it to the application's data through the scope. This dynamic compilation allows for the creation of dynamic and data-driven views, playing a crucial role in AngularJS's two-way data binding mechanism. Understanding the role of $compile is essential for effective view management in AngularJS applications.

AngularJS efficiently manages event handling in scenarios with multiple controllers by broadcasting events using $broadcast. This mechanism allows one controller to broadcast an event, and other controllers can listen for and respond to that event. It promotes loose coupling between controllers, making the application more modular and maintainable. Understanding event broadcasting is crucial for handling complex interactions in AngularJS applications.

AngularJS's Two-Way Data Binding is a key concept that integrates models and views seamlessly. With two-way data binding, changes in the model automatically update the view, and changes in the view update the model. This bidirectional communication simplifies the development process, reduces boilerplate code, and enhances the responsiveness of AngularJS applications. Understanding two-way data binding is fundamental for efficient data synchronization in AngularJS.

Using nested controllers in AngularJS can lead to increased complexity. While it allows for a more modular structure, it can make the code harder to understand and maintain. Developers need to carefully consider the trade-offs and use nested controllers judiciously to strike a balance between modularity and code clarity.