What are the advantages of using dependency injection in .NET Core and how does it help improve testability and maintainability of the code?

Advantages of Using Dependency Injection in .NET Core:

Dependency Injection in .NET Core offers several advantages, including:

• Decoupling: Dependency Injection helps in decoupling components within the application, leading to better code separation.
• Testability: By injecting dependencies into classes, it becomes easier to test individual components in isolation, improving overall testability of the code.
• Maintainability: Dependency Injection simplifies the process of maintaining and updating the codebase, as changes in dependencies can be made without affecting other parts of the application.
• Flexibility: With Dependency Injection, it is easier to switch out implementations of dependencies without making significant changes to existing code.

Overall, using Dependency Injection in .NET Core can greatly enhance the testability and maintainability of the codebase, making it easier to develop, test, and maintain applications in the long run.