Eager module loading is the default loading strategy in Angular, where all the modules are loaded when the application starts, regardless of whether they are immediately necessary or not. This strategy is particularly useful in certain scenarios:
Small Size Applications: Eager loading is suitable for small-scale applications with fewer modules and components. Since there are only a few modules, the impact on the initial load time is minimal, and the subsequent requests to the application will be faster because all the modules are already loaded[1][4].
Core Modules: For modules that contain essential functionality required to start the application, such as components for the initial page, interceptors for authentication, authorization, error handling, top-level routing, and localization, eager loading ensures that these critical parts of the application are available immediately[6].
Performance Considerations: In cases where the performance benefit of lazy loading is negligible due to the small number of modules or the minimal size of the modules, eager loading can be a simpler approach that avoids the complexity of setting up lazy loading[3][4].
Simplicity and Reduced Complexity: Eager loading is straightforward to implement since it does not require additional configuration for routing and module loading. This can be beneficial for developers who are new to Angular or for applications where the added complexity of lazy loading is not justified[3][4].
Predictable Loading Behavior: Since eager loading loads all modules upfront, it provides a predictable loading behavior. This can be advantageous in situations where you want to ensure that all functionality is available as soon as the user starts interacting with the application[4].
