What is dependency injection

In the realm of object-oriented programming (OOP), dependency injection (DI) emerges as a cornerstone technique for managing dependencies within software systems. Dependencies, in this context, represent essential resources – often other components within the application – that a piece of code relies upon to execute its intended function.

The Tight Coupling Quandary:

Traditionally, code would directly instantiate or locate the dependencies it requires. This approach, while seemingly straightforward, fosters tight coupling between the code and specific implementations of those dependencies. …

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