What are some advanced techniques for dependency injection in Angular?

What are some advanced techniques for dependency injection in Angular?

Advanced techniques for dependency injection in Angular include hierarchical injectors, multi-providers, and using factory providers.

Can you explain hierarchical injectors?

Hierarchical injectors allow you to create a tree of injectors, where child components can inherit services from their parent injectors.

What are multi-providers?

Multi-providers enable you to provide multiple instances of a service under the same token, allowing for more flexible service management.

How do factory providers work?

Factory providers allow you to define a function that returns an instance of a service, giving you control over its creation.

Can you give an example of using a factory provider?

Sure! You can create a factory function that initializes a service with specific parameters and then provide it in your module.