When should I use dependency injection in my projects?

When should I use dependency injection in my projects?

Dependency injection is useful when you want to improve code modularity, testability, and maintainability.

Can you give me an example of how it improves testability?

Sure! By injecting dependencies, you can easily replace them with mocks or stubs during testing.

Are there any downsides to using dependency injection?

Yes, it can add complexity to your code and may lead to over-engineering if not used judiciously.

How do I implement dependency injection in a simple project?

You can start by using a dependency injection container or framework that manages the lifecycle of your objects.