<ul><li>Dependency Injection (DI) is a design pattern in Angular that allows for flexible, testable, and loosely coupled code.</li><li>Angular uses injectors to manage how dependencies are provided and shared across the application.</li><li>There are three types of providers in Angular: root level, component level, and module level.</li><li>Best practices for using DI include using providedIn: 'root' for global singleton services, limiting the use of component-level providers, avoiding circular dependencies, and using DI for unit testing.</li></ul>

🚀 Why Most Angular Developers Still Struggle With Dependency Injection (And How to Master It Today)

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