Last month, I talked about the basic idea of what dependency injection is and its importance. Now that we’re more familiar with it, we’ll look at examples of using dependency injection for managing object coupling, moving object creation externally, and keeping your classes concise.

Design patterns provide useful approaches for solving common problems in application design. Dependency injection is a powerful one, but it is also challenging to understand and apply. In this article, we’ll cover what it does and how to use it properly.