What is Dependency Injection in Angular ?

Hinzugefügt: 2026-06-04

[00:00:00]What is dependency injection in angular?

[00:00:03]Understand in 60 seconds. Imagine we have a salary service class. Inside the service we have a method calculate salary. Now suppose an employee component needs this method calculate service. So instead of creating the salary service object manually inside the component, angular can provide the it automatically. For that we have to inject the service inside the component using the constructor. This is called dependency injection.

[00:00:37]In short, dependency injection or provides required services or objects to a component instead of creating them manually. For interview ready angular learning, check the full course in description.