The article emphasizes the importance of replacing global variables in code with dependency injection to enhance testability and reduce coupling. It outlines a systematic approach to identify global variables, create real-world abstractions to encapsulate these variables, and refactor existing code accordingly. By explicitly passing dependencies through function parameters or constructors, code becomes more modular, making it easier to test and maintain. A sample code comparison illustrates this refactoring process effectively, showing the transition from a global variable reliance to a dependency-injected structure, ultimately advocating for cleaner and more manageable code.
By replacing global variables with dependency injection, we can significantly enhance our code's testability and reduce unnecessary coupling between components.
Identifying global variables is the first step in refactoring your code, leading to a more modular structure. This allows for easier testing and maintenance.
Collection
[
|
...
]