angular-cars-routes.ts

import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';

import { CarsPageComponent } from './containers/cars-page/cars-page.component';
import { SelectedCarPageComponent } from './containers/selected-car-page/selected-car-page.component';

const routes: Routes = [
  {
    path: 'cars',
    children: [
      {
        path: '',
        component: CarsPageComponent
      },
      {
        path: ':carId',
        component: SelectedCarPageComponent
      }
    ]
  }
]

@NgModule({
  imports: [RouterModule.forChild(routes)],
  exports: [RouterModule]
})
export class CarsRoutingModule { }