Angular, a popular framework for building dynamic web applications, has a treasure trove of features that many developers may not be aware of. Among these, two-way data binding stands out as it allows for seamless synchronization between the model and the view. This feature simplifies the task of keeping the user interface and data in sync, which is vital for creating responsive applications. Another lesser-known feature is lazy loading, enabling you to load parts of your application only when they are required. This leads to faster load times and improved performance, especially in large applications.

Moreover, Angular's dependency injection system can significantly improve code reusability and testability by managing how components and services interact. The Router has enhanced capabilities, such as route guards and lazy loading to protect and optimize your routes. Finally, Angular's built-in support for ahead-of-time (AOT) compilation allows your applications to be compiled during the build process, which reduces the size of the application bundle and resolves templates before the application is served. These features not only enhance productivity but also contribute to developing high-performance applications.

Understanding Angular can initially seem daunting, especially when it comes to the core concepts of components and services. In Angular, a component serves as a fundamental building block of the application. It encapsulates the HTML template, the CSS styles, and the logic associated with a specific part of the user interface. Each component is defined with a TypeScript class, and it is responsible for controlling a portion of the application's view. By creating reusable components, developers can enhance code maintainability and encourage a modular structure.

On the other hand, services in Angular play a crucial role in sharing data and business logic across different components. They are typically implemented using TypeScript classes, and the Angular dependency injection system makes it easy to incorporate them where needed. By utilizing services, developers can separate concerns and keep their code organized. For example, a service can manage API calls and data retrieval, freeing components from dealing directly with external data sources. This separation also enhances testability, as services can be independently tested without relying on the UI components.

Debugging common Angular errors can be a daunting task for developers, especially for those new to the framework. One effective method is to leverage Angular's built-in debugging tools. The ng.probe() function allows you to inspect your components in the browser's console, while the Angular Augury extension provides a visual representation of your application's component tree, making it easier to identify the source of errors. Additionally, using the ng serve command with detailed logging options can help you pinpoint issues during development.

Another crucial step in troubleshooting is utilizing error messages effectively. When an error occurs, examine the console output carefully; most messages will provide a stack trace or point to the specific line of code that caused the issue. Stay organized by creating a checklist of common Angular errors, such as circular dependencies, null reference errors, or issues with data binding. Following a systematic approach to tackle these errors not only streamlines the debugging process but also enhances your skills as an Angular developer.