Example of ProvidedIn in Angular
To illustrate the usage of providedIn, let’s create a simple Angular application with a service and two components:
Step 1: Generate a new Angular application using the Angular CLI and navigate to the project:
ng new provided-in-example
cd provided-in-example
Step 2: Generate a service named data using the following command.
ng generate service data
Step 3: Generate two components called ComponentA and ComponentB:
ng generate component component-a
ng generate component component-b
Purpose of ProvidedIn in Angular
Angular’s dependency injection system is a powerful mechanism that helps manage dependencies between components, services, and other parts of the application. One important aspect of this system is the providedIn property, which determines the scope and visibility of a service or module. In this article, we’ll explore the purpose of providedIn in Angular and how it relates to the overall dependency injection mechanism.
Table of Content
- What is dependency injection?
- What is Providedln?
- Features of Providedln
- Example of ProvidedIn in Angular
- Conclusion
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