What Is Dependency Injection?
Explore the concept of dependency injection in Angular to understand how it simplifies managing class dependencies. Learn its benefits such as dividing tasks into smaller classes, facilitating testing with mock dependencies, and maintaining separation of concerns for more maintainable applications.
Before we start making changes to our application, we need to go through some new topics that we have not discussed yet, starting with Dependency Injection.
What is Dependency Injection?
Dependency Injection is a design pattern that sets out how objects are passed to one another. Design patterns are reusable solutions to common problems we find in developing software. There are many different types of design patterns, which the Dependency Injection is part of. If you spend time looking at these different patterns, they can provide possible solutions to issues you may come across in your development career. So, they are worth exploring.
The Design Pattern of Dependency Injection states that a class can ask for its dependencies to be passed in; instead of creating instances of its dependencies itself. ...