Use component from another module

The Ultimate Guide to Using Components from Another Module in Angular 🚀💡

So you've created an Angular 2 app and decided to separate your components into modules. But now you've run into a little hiccup - you want to use a component from one module in another module. No worries, we've got you covered! In this guide, we'll walk you through the steps to successfully use a component from another module in your Angular app. Let's dive in! 💪

Understanding the Problem 🤔

In this scenario, we have an AppModule and a TaskModule, and we want to use the TaskCardComponent from the TaskModule in the BoardComponent of the AppModule.

Solution #1: Importing the Component 💻

The first solution involves importing the component directly into the module where you want to use it.

1. Open the BoardComponent file in your AppModule.

2. Add an import statement for the TaskCardComponent from the TaskModule.

import { TaskCardComponent } from '../task/task-card/task-card.component';

1. Make sure to use the correct file path in the import statement.

2. Now you can use the TaskCardComponent in the BoardComponent as if it was declared in the same module.

@Component({
  selector: 'app-board',
  templateUrl: './board.component.html',
  styleUrls: ['./board.component.css']
})
export class BoardComponent {
  // You can now use the TaskCardComponent here
}

1. You're done! The TaskCardComponent is now available for use in the BoardComponent of the AppModule.

Solution #2: Exporting and Importing the Module 📦

If you find yourself using multiple components from the same module in different modules, it might be more efficient to export the entire module and import it wherever you need it. Let's explore this solution!

1. Open the TaskModule file.

2. Add the exports property to the NgModule decorator and include the TaskCardComponent in the array.

@NgModule({
  declarations: [TaskCardComponent],
  imports: [MdCardModule],
  exports: [TaskCardComponent], // Add this line
  providers: []
})
export class TaskModule {}

1. Save the file and open the AppModule file.

2. Remove the import statement for the TaskCardComponent if you added it in Solution #1.

3. Import the entire TaskModule instead.

import { TaskModule } from './task/task.module'; // Import the module

@NgModule({
  declarations: [
    AppComponent,
    BoardComponent,
    LoginComponent,
    PageNotFoundComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    HttpModule,
    MdButtonModule,
    MdInputModule,
    MdToolbarModule,
    routing,
    TaskModule // Import the module here
  ],
  providers: [UserService],
  bootstrap: [AppComponent]
})
export class AppModule {}

1. You're all set! The TaskCardComponent and any other components from the TaskModule are now available for use in the AppModule.

Conclusion 🎉

Using components from another module in Angular doesn't have to be complicated. By following our step-by-step solutions, you can easily incorporate components from different modules into your app.

Remember, Solution #1 is great for using a specific component from a module, while Solution #2 is perfect when you need to use multiple components from the same module in different modules.

Now it's your turn! Try implementing these solutions in your own Angular app and see the magic happen. If you have any questions or need further assistance, feel free to leave a comment below. Happy coding! 😄💻