Introduction
Angular is a popular JavaScript open-source framework that enables developers to build web applications. It was created by Google and was released in 2010. Angular features numerous interesting functionalities, with one of the most useful being its child routes or nested routes. This tutorial will explain the concept of child routes in Angular.
What are Child Routes/Nested Routes in Angular?
In essence, child routes or nested routes simply refer to routes that are nested inside other routes. They are often used in situations where a specific functionality of an application is largely dependent on a larger functionality. An example would be a blog application where the main route would be the blog page and nested routes would be the individual blog posts.
Angular offers nested routing as a default feature and they are built on the concepts of standard routing.
How to Implement Child Routes in Angular
To implement child routes in your Angular application, follow the steps below:
1. Begin by importing the RouterModule and Routes from the @angular/router package.
“`
import { Routes, RouterModule } from ‘@angular/router’;
“`
2. Create a routing module for the parent component with its own route.
“`
const routes: Routes = [
{ path: ”, component: ParentComponent }
];
@NgModule ({
imports: [RouterModule.forChild(routes)],
exports: [RouterModule]
})
export class ParentRoutingModule { }
“`
3. Create a routing module for the child components with their respective routes.
“`
const routes: Routes = [
{
path: ‘child’, component: ChildOneComponent,
children: [
{ path: ”, pathMatch: ‘full’, redirectTo: ‘child-two’},
{ path: ‘child-two’, component: ChildTwoComponent },
{ path: ‘child-three’, component: ChildThreeComponent }
]
},
];
@NgModule({
imports: [RouterModule.forChild(routes)],
exports: [RouterModule]
})
export class ChildRoutingModule { }
“`
4. Import the child routing module into the parent routing module.
“`
@NgModule ({
imports: [RouterModule.forChild(routes), ChildRoutingModule],
exports: [RouterModule]
})
export class ParentRoutingModule { }
“`
5. Finally, add the parent routing module into your app module.
“`
@NgModule({
declarations: [AppComponent],
imports: [BrowserModule, ParentRoutingModule],
bootstrap: [AppComponent]
})
“`
FAQs
Q: What are the benefits of using nested routes?
A: Nested routes provide several benefits, including cleaner code, simpler maintenance, and better component Organization. It also makes your application more scalable.
Q: Can I have multiple child routes for a single parent route?
A: Yes, you can. In fact, you can have as many child routes as you require.
Q: Are nested routes compatible with Angular 9?
A: Yes, Nested routing is compatible with all versions of Angular, including Angular 9.
Q: Is there a limit to how many levels of nesting I can have in an Angular application?
A: There is no limit to the number of levels of nesting you can have in your application.
Conclusion
In conclusion, child or nested routes provide a great solution for organizing events that are dependent on larger functionalities. They are essential to developing well-organized and scalable Angular applications. However, it is important to understand how to implement them to ensure that your application is efficient and easy to maintain. This guide should serve as an excellent starting point for anyone who wants to learn how to use child routes in Angular.