suresh What is Dependency Injection in AngularJS and How is it Used?
Dependency injection in AngularJS is a design pattern that allows the components of an application to depend on other components. This means that instead of creating and managing the dependencies within a component, AngularJS provides a way to inject the dependencies from the outside.
Dependency injection is commonly used in AngularJS to make components more modular, reusable, and testable. By injecting dependencies, components can be easily swapped out or mocked for testing purposes. This also promotes separation of concerns and encourages a more maintainable codebase.
In AngularJS, dependency injection is achieved through the use of the built-in injector subsystem. Dependencies are defined in the component's constructor or through annotations, and the injector takes care of resolving and providing these dependencies when the component is instantiated.
Overall, dependency injection is a powerful feature of AngularJS that helps in managing complex dependencies and improving the overall stability and maintainability of an application.
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