docs: Update router guide to use Angular CLI (#20023)

PR Close #20023

aio/content/examples/router/e2e/src/app.e2e-spec.ts

@@ -4,7 +4,7 @@ import { browser, element, by, ExpectedConditions } from 'protractor';
 
 const numDashboardTabs = 5;
 const numCrises = 4;
-const numHeroes = 6;
+const numHeroes = 10;
 const EC = ExpectedConditions;
 
 describe('Router', () => {
@@ -13,34 +13,34 @@ describe('Router', () => {
 
   function getPageStruct() {
     const hrefEles = element.all(by.css('app-root > nav a'));
-    const crisisDetail = element.all(by.css('app-root > div > ng-component > ng-component > ng-component > div')).first();
-    const heroDetail = element(by.css('app-root > div > ng-component'));
+    const crisisDetail = element.all(by.css('app-root > div > app-crisis-center > app-crisis-list > app-crisis-detail > div')).first();
+    const heroDetail = element(by.css('app-root > div > app-hero-detail'));
 
     return {
       hrefs: hrefEles,
       activeHref: element(by.css('app-root > nav a.active')),
 
       crisisHref: hrefEles.get(0),
-      crisisList: element.all(by.css('app-root > div > ng-component > ng-component li')),
+      crisisList: element.all(by.css('app-root > div > app-crisis-center > app-crisis-list li')),
       crisisDetail: crisisDetail,
       crisisDetailTitle: crisisDetail.element(by.xpath('*[1]')),
 
       heroesHref: hrefEles.get(1),
-      heroesList: element.all(by.css('app-root > div > ng-component li')),
+      heroesList: element.all(by.css('app-root > div > app-hero-list li')),
       heroDetail: heroDetail,
       heroDetailTitle: heroDetail.element(by.xpath('*[2]')),
 
       adminHref: hrefEles.get(2),
-      adminPreloadList: element.all(by.css('app-root > div > ng-component > ng-component > ul > li')),
+      adminPreloadList: element.all(by.css('app-root > div > app-admin > app-admin-dashboard > ul > li')),
 
       loginHref: hrefEles.get(3),
-      loginButton: element.all(by.css('app-root > div > ng-component > p > button')),
+      loginButton: element.all(by.css('app-root > div > app-login > p > button')),
 
       contactHref: hrefEles.get(4),
       contactCancelButton: element.all(by.buttonText('Cancel')),
 
-      primaryOutlet: element.all(by.css('app-root > div > ng-component')),
-      secondaryOutlet: element.all(by.css('app-root > ng-component'))
+      primaryOutlet: element.all(by.css('app-root > div > app-hero-list')),
+      secondaryOutlet: element.all(by.css('app-root > app-compose-message'))
     };
   }
 

aio/content/examples/router/src/app/admin/admin-dashboard.component.1.ts

@@ -1,9 +0,0 @@
-// #docregion
-import { Component } from '@angular/core';
-
-@Component({
-  template:  `
-    <p>Dashboard</p>
-  `
-})
-export class AdminDashboardComponent { }

aio/content/examples/router/src/app/admin/admin-dashboard/admin-dashboard.component.1.html

@@ -0,0 +1 @@
+<p>Dashboard</p>

aio/content/examples/router/src/app/admin/admin-dashboard/admin-dashboard.component.1.ts

@@ -5,13 +5,9 @@ import { Observable }         from 'rxjs';
 import { map }                from 'rxjs/operators';
 
 @Component({
-  template:  `
-    <p>Dashboard</p>
-
-    <p>Session ID: {{ sessionId | async }}</p>
-    <a id="anchor"></a>
-    <p>Token: {{ token | async }}</p>
-  `
+  selector: 'app-admin-dashboard',
+  templateUrl: './admin-dashboard.component.html',
+  styleUrls: ['./admin-dashboard.component.css']
 })
 export class AdminDashboardComponent implements OnInit {
   sessionId: Observable<string>;

aio/content/examples/router/src/app/admin/admin-dashboard/admin-dashboard.component.2.html

@@ -0,0 +1,5 @@
+<p>Dashboard</p>
+
+<p>Session ID: {{ sessionId | async }}</p>
+<a id="anchor"></a>
+<p>Token: {{ token | async }}</p>

aio/content/examples/router/src/app/admin/admin-dashboard/admin-dashboard.component.html

@@ -0,0 +1,10 @@
+<p>Dashboard</p>
+
+<p>Session ID: {{ sessionId | async }}</p>
+<a id="anchor"></a>
+<p>Token: {{ token | async }}</p>
+
+Preloaded Modules
+<ul>
+  <li *ngFor="let module of modules">{{ module }}</li>
+</ul>

aio/content/examples/router/src/app/admin/admin-dashboard/admin-dashboard.component.ts

@@ -4,22 +4,12 @@ import { ActivatedRoute }       from '@angular/router';
 import { Observable }           from 'rxjs';
 import { map }                  from 'rxjs/operators';
 
-import { SelectivePreloadingStrategy } from '../selective-preloading-strategy';
-
+import { SelectivePreloadingStrategyService } from '../../selective-preloading-strategy.service';
 
 @Component({
-  template:  `
-    <p>Dashboard</p>
-
-    <p>Session ID: {{ sessionId | async }}</p>
-    <a id="anchor"></a>
-    <p>Token: {{ token | async }}</p>
-
-    Preloaded Modules
-    <ul>
-      <li *ngFor="let module of modules">{{ module }}</li>
-    </ul>
-  `
+  selector: 'app-admin-dashboard',
+  templateUrl: './admin-dashboard.component.html',
+  styleUrls: ['./admin-dashboard.component.css']
 })
 export class AdminDashboardComponent implements OnInit {
   sessionId: Observable<string>;
@@ -28,7 +18,7 @@ export class AdminDashboardComponent implements OnInit {
 
   constructor(
     private route: ActivatedRoute,
-    private preloadStrategy: SelectivePreloadingStrategy
+    preloadStrategy: SelectivePreloadingStrategyService
   ) {
     this.modules = preloadStrategy.preloadedModules;
   }

aio/content/examples/router/src/app/admin/admin-routing.module.1.ts

@@ -3,10 +3,10 @@
 import { NgModule }              from '@angular/core';
 import { RouterModule, Routes }  from '@angular/router';
 
-import { AdminComponent }           from './admin.component';
-import { AdminDashboardComponent }  from './admin-dashboard.component';
-import { ManageCrisesComponent }    from './manage-crises.component';
-import { ManageHeroesComponent }    from './manage-heroes.component';
+import { AdminComponent }           from './admin/admin.component';
+import { AdminDashboardComponent }  from './admin-dashboard/admin-dashboard.component';
+import { ManageCrisesComponent }    from './manage-crises/manage-crises.component';
+import { ManageHeroesComponent }    from './manage-heroes/manage-heroes.component';
 
 // #docregion admin-routes
 const adminRoutes: Routes = [

aio/content/examples/router/src/app/admin/admin-routing.module.2.ts

@@ -3,13 +3,13 @@
 import { NgModule }              from '@angular/core';
 import { RouterModule, Routes }  from '@angular/router';
 
-import { AdminComponent }           from './admin.component';
-import { AdminDashboardComponent }  from './admin-dashboard.component';
-import { ManageCrisesComponent }    from './manage-crises.component';
-import { ManageHeroesComponent }    from './manage-heroes.component';
+import { AdminComponent }           from './admin/admin.component';
+import { AdminDashboardComponent }  from './admin-dashboard/admin-dashboard.component';
+import { ManageCrisesComponent }    from './manage-crises/manage-crises.component';
+import { ManageHeroesComponent }    from './manage-heroes/manage-heroes.component';
 
 // #docregion admin-route
-import { AuthGuard }                from '../auth-guard.service';
+import { AuthGuard }                from '../auth/auth.guard';
 
 const adminRoutes: Routes = [
   {

aio/content/examples/router/src/app/admin/admin-routing.module.3.ts

@@ -3,13 +3,13 @@
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 
-import { AdminComponent }           from './admin.component';
-import { AdminDashboardComponent }  from './admin-dashboard.component';
-import { ManageCrisesComponent }    from './manage-crises.component';
-import { ManageHeroesComponent }    from './manage-heroes.component';
+import { AdminComponent }           from './admin/admin.component';
+import { AdminDashboardComponent }  from './admin-dashboard/admin-dashboard.component';
+import { ManageCrisesComponent }    from './manage-crises/manage-crises.component';
+import { ManageHeroesComponent }    from './manage-heroes/manage-heroes.component';
 
 // #docregion admin-route
-import { AuthGuard }                from '../auth-guard.service';
+import { AuthGuard }                from '../auth/auth.guard';
 
 // #docregion can-activate-child
 const adminRoutes: Routes = [

aio/content/examples/router/src/app/admin/admin-routing.module.ts

@@ -3,12 +3,12 @@
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 
-import { AdminComponent }           from './admin.component';
-import { AdminDashboardComponent }  from './admin-dashboard.component';
-import { ManageCrisesComponent }    from './manage-crises.component';
-import { ManageHeroesComponent }    from './manage-heroes.component';
+import { AdminComponent }           from './admin/admin.component';
+import { AdminDashboardComponent }  from './admin-dashboard/admin-dashboard.component';
+import { ManageCrisesComponent }    from './manage-crises/manage-crises.component';
+import { ManageHeroesComponent }    from './manage-heroes/manage-heroes.component';
 
-import { AuthGuard }                from '../auth-guard.service';
+import { AuthGuard }                from '../auth/auth.guard';
 
 const adminRoutes: Routes = [
   {

aio/content/examples/router/src/app/admin/admin.component.ts

@@ -1,17 +0,0 @@
-// #docregion
-import { Component } from '@angular/core';
-
-@Component({
-  template:  `
-    <h3>ADMIN</h3>
-    <nav>
-      <a routerLink="./" routerLinkActive="active"
-        [routerLinkActiveOptions]="{ exact: true }">Dashboard</a>
-      <a routerLink="./crises" routerLinkActive="active">Manage Crises</a>
-      <a routerLink="./heroes" routerLinkActive="active">Manage Heroes</a>
-    </nav>
-    <router-outlet></router-outlet>
-  `
-})
-export class AdminComponent {
-}

aio/content/examples/router/src/app/admin/admin.module.ts

@@ -2,10 +2,10 @@
 import { NgModule }       from '@angular/core';
 import { CommonModule }   from '@angular/common';
 
-import { AdminComponent }           from './admin.component';
-import { AdminDashboardComponent }  from './admin-dashboard.component';
-import { ManageCrisesComponent }    from './manage-crises.component';
-import { ManageHeroesComponent }    from './manage-heroes.component';
+import { AdminComponent }           from './admin/admin.component';
+import { AdminDashboardComponent }  from './admin-dashboard/admin-dashboard.component';
+import { ManageCrisesComponent }    from './manage-crises/manage-crises.component';
+import { ManageHeroesComponent }    from './manage-heroes/manage-heroes.component';
 
 import { AdminRoutingModule }       from './admin-routing.module';
 

aio/content/examples/router/src/app/admin/admin/admin.component.html

@@ -0,0 +1,8 @@
+<h3>ADMIN</h3>
+<nav>
+  <a routerLink="./" routerLinkActive="active"
+    [routerLinkActiveOptions]="{ exact: true }">Dashboard</a>
+  <a routerLink="./crises" routerLinkActive="active">Manage Crises</a>
+  <a routerLink="./heroes" routerLinkActive="active">Manage Heroes</a>
+</nav>
+<router-outlet></router-outlet>

aio/content/examples/router/src/app/admin/admin/admin.component.ts

@@ -0,0 +1,10 @@
+// #docregion
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-admin',
+  templateUrl: './admin.component.html',
+  styleUrls: ['./admin.component.css']
+})
+export class AdminComponent {
+}

aio/content/examples/router/src/app/admin/manage-crises.component.ts

@@ -1,9 +0,0 @@
-// #docregion
-import { Component } from '@angular/core';
-
-@Component({
-  template:  `
-    <p>Manage your crises here</p>
-  `
-})
-export class ManageCrisesComponent { }

aio/content/examples/router/src/app/admin/manage-crises/manage-crises.component.html

@@ -0,0 +1 @@
+<p>Manage your crises here</p>

aio/content/examples/router/src/app/admin/manage-crises/manage-crises.component.ts

@@ -0,0 +1,9 @@
+// #docregion
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-manage-crises',
+  templateUrl: './manage-crises.component.html',
+  styleUrls: ['./manage-crises.component.css']
+})
+export class ManageCrisesComponent { }

aio/content/examples/router/src/app/admin/manage-heroes.component.ts

@@ -1,9 +0,0 @@
-// #docregion
-import { Component } from '@angular/core';
-
-@Component({
-  template:  `
-    <p>Manage your heroes here</p>
-  `
-})
-export class ManageHeroesComponent { }

aio/content/examples/router/src/app/admin/manage-heroes/manage-heroes.component.html

@@ -0,0 +1 @@
+<p>Manage your heroes here</p>

aio/content/examples/router/src/app/admin/manage-heroes/manage-heroes.component.ts

@@ -0,0 +1,9 @@
+// #docregion
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-manage-hereos',
+  templateUrl: './manage-heroes.component.html',
+  styleUrls: ['./manage-heroes.component.css']
+})
+export class ManageHeroesComponent { }

aio/content/examples/router/src/app/app-routing.module.1.ts

@@ -2,9 +2,9 @@
 import { NgModule }              from '@angular/core';
 import { RouterModule, Routes }  from '@angular/router';
 
-import { CrisisListComponent }   from './crisis-list.component';
-import { HeroListComponent }     from './hero-list.component';
-import { PageNotFoundComponent } from './not-found.component';
+import { CrisisListComponent }   from './crisis-list/crisis-list.component';
+import { HeroListComponent }     from './hero-list/hero-list.component';
+import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
 
 // #docregion appRoutes
 const appRoutes: Routes = [

aio/content/examples/router/src/app/app-routing.module.2.ts

@@ -1,14 +1,19 @@
 // #docregion
+// #docregion milestone3
 import { NgModule }              from '@angular/core';
 import { RouterModule, Routes }  from '@angular/router';
 
-import { CrisisListComponent }   from './crisis-list.component';
-// import { HeroListComponent }  from './hero-list.component';  // <-- delete this line
-import { PageNotFoundComponent } from './not-found.component';
+import { CrisisListComponent }   from './crisis-list/crisis-list.component';
+// #enddocregion milestone3
+// import { HeroListComponent }  from './hero-list/hero-list.component';  // <-- delete this line
+// #docregion milestone3
+import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
 
 const appRoutes: Routes = [
   { path: 'crisis-center', component: CrisisListComponent },
+// #enddocregion milestone3
   // { path: 'heroes',     component: HeroListComponent }, // <-- delete this line
+// #docregion milestone3
   { path: '',   redirectTo: '/heroes', pathMatch: 'full' },
   { path: '**', component: PageNotFoundComponent }
 ];
@@ -25,3 +30,4 @@ const appRoutes: Routes = [
   ]
 })
 export class AppRoutingModule {}
+// #enddocregion milestone3

aio/content/examples/router/src/app/app-routing.module.3.ts

@@ -3,8 +3,10 @@
 import { NgModule }                from '@angular/core';
 import { RouterModule, Routes }    from '@angular/router';
 
-import { ComposeMessageComponent } from './compose-message.component';
-import { PageNotFoundComponent }   from './not-found.component';
+// #enddocregion v3
+import { ComposeMessageComponent } from './compose-message/compose-message.component';
+// #docregion v3
+import { PageNotFoundComponent }  from './page-not-found/page-not-found.component';
 
 const appRoutes: Routes = [
 // #enddocregion v3

aio/content/examples/router/src/app/app-routing.module.4.ts

@@ -2,9 +2,9 @@
 import { NgModule }              from '@angular/core';
 import { RouterModule, Routes }  from '@angular/router';
 
-import { ComposeMessageComponent } from './compose-message.component';
-import { CanDeactivateGuard }      from './can-deactivate-guard.service';
-import { PageNotFoundComponent }   from './not-found.component';
+import { ComposeMessageComponent } from './compose-message/compose-message.component';
+import { CanDeactivateGuard }      from './can-deactivate.guard';
+import { PageNotFoundComponent }   from './page-not-found/page-not-found.component';
 
 const appRoutes: Routes = [
   {
@@ -25,9 +25,6 @@ const appRoutes: Routes = [
   ],
   exports: [
     RouterModule
-  ],
-  providers: [
-    CanDeactivateGuard
   ]
 })
 export class AppRoutingModule {}

aio/content/examples/router/src/app/app-routing.module.5.ts

@@ -5,11 +5,10 @@ import { NgModule }     from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 // #enddocregion import-router
 
-import { ComposeMessageComponent } from './compose-message.component';
-import { PageNotFoundComponent }   from './not-found.component';
+import { ComposeMessageComponent } from './compose-message/compose-message.component';
+import { PageNotFoundComponent }   from './page-not-found/page-not-found.component';
 
-import { CanDeactivateGuard }      from './can-deactivate-guard.service';
-import { AuthGuard }               from './auth-guard.service';
+import { AuthGuard }               from './auth/auth.guard';
 
 
 const appRoutes: Routes = [
@@ -21,7 +20,7 @@ const appRoutes: Routes = [
 // #docregion admin, admin-1
   {
     path: 'admin',
-    loadChildren: 'app/admin/admin.module#AdminModule',
+    loadChildren: './admin/admin.module#AdminModule',
 // #enddocregion admin-1
     canLoad: [AuthGuard]
 // #docregion admin-1
@@ -40,9 +39,6 @@ const appRoutes: Routes = [
   ],
   exports: [
     RouterModule
-  ],
-  providers: [
-    CanDeactivateGuard
   ]
 })
 export class AppRoutingModule {}

aio/content/examples/router/src/app/app-routing.module.6.ts

@@ -8,11 +8,10 @@ import {
 // #docregion preload-v1
 } from '@angular/router';
 
-import { ComposeMessageComponent } from './compose-message.component';
-import { PageNotFoundComponent }   from './not-found.component';
+import { ComposeMessageComponent } from './compose-message/compose-message.component';
+import { PageNotFoundComponent }   from './page-not-found/page-not-found.component';
 
-import { CanDeactivateGuard }      from './can-deactivate-guard.service';
-import { AuthGuard }               from './auth-guard.service';
+import { AuthGuard }               from './auth/auth.guard';
 
 const appRoutes: Routes = [
   {
@@ -22,12 +21,12 @@ const appRoutes: Routes = [
   },
   {
     path: 'admin',
-    loadChildren: 'app/admin/admin.module#AdminModule',
+    loadChildren: './admin/admin.module#AdminModule',
     canLoad: [AuthGuard]
   },
   {
     path: 'crisis-center',
-    loadChildren: 'app/crisis-center/crisis-center.module#CrisisCenterModule'
+    loadChildren: './crisis-center/crisis-center.module#CrisisCenterModule'
   },
   { path: '',   redirectTo: '/heroes', pathMatch: 'full' },
   { path: '**', component: PageNotFoundComponent }
@@ -49,9 +48,6 @@ const appRoutes: Routes = [
   ],
   exports: [
     RouterModule
-  ],
-  providers: [
-    CanDeactivateGuard
   ]
 })
 export class AppRoutingModule {}

aio/content/examples/router/src/app/app-routing.module.ts

@@ -3,12 +3,11 @@
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 
-import { ComposeMessageComponent }  from './compose-message.component';
-import { PageNotFoundComponent }    from './not-found.component';
+import { ComposeMessageComponent }  from './compose-message/compose-message.component';
+import { PageNotFoundComponent }    from './page-not-found/page-not-found.component';
 
-import { CanDeactivateGuard }       from './can-deactivate-guard.service';
-import { AuthGuard }                from './auth-guard.service';
-import { SelectivePreloadingStrategy } from './selective-preloading-strategy';
+import { AuthGuard }                          from './auth/auth.guard';
+import { SelectivePreloadingStrategyService } from './selective-preloading-strategy.service';
 
 const appRoutes: Routes = [
   {
@@ -18,13 +17,13 @@ const appRoutes: Routes = [
   },
   {
     path: 'admin',
-    loadChildren: 'app/admin/admin.module#AdminModule',
+    loadChildren: './admin/admin.module#AdminModule',
     canLoad: [AuthGuard]
   },
   // #docregion preload-v2
   {
     path: 'crisis-center',
-    loadChildren: 'app/crisis-center/crisis-center.module#CrisisCenterModule',
+    loadChildren: './crisis-center/crisis-center.module#CrisisCenterModule',
     data: { preload: true }
   },
   // #enddocregion preload-v2
@@ -37,18 +36,13 @@ const appRoutes: Routes = [
     RouterModule.forRoot(
       appRoutes,
       {
-        enableTracing: true, // <-- debugging purposes only
-        preloadingStrategy: SelectivePreloadingStrategy,
-
+        enableTracing: false, // <-- debugging purposes only
+        preloadingStrategy: SelectivePreloadingStrategyService,
       }
     )
   ],
   exports: [
     RouterModule
-  ],
-  providers: [
-    CanDeactivateGuard,
-    SelectivePreloadingStrategy
   ]
 })
 export class AppRoutingModule { }

aio/content/examples/router/src/app/app.component.1.html

@@ -0,0 +1,7 @@
+<!-- #docregion -->
+<h1>Angular Router</h1>
+<nav>
+  <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
+  <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
+</nav>
+<router-outlet></router-outlet>

aio/content/examples/router/src/app/app.component.1.ts

@@ -1,18 +1,9 @@
-/* First version */
 // #docregion
 import { Component } from '@angular/core';
 
 @Component({
   selector: 'app-root',
-  // #docregion template
-  template: `
-    <h1>Angular Router</h1>
-    <nav>
-      <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
-      <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
-    </nav>
-    <router-outlet></router-outlet>
-  `
-  // #enddocregion template
+  templateUrl: 'app.component.html',
+  styleUrls: ['app.component.css']
 })
 export class AppComponent { }

aio/content/examples/router/src/app/app.component.2.html

@@ -0,0 +1,9 @@
+<!-- #docregion -->
+<h1>Angular Router</h1>
+<nav>
+  <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
+  <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
+</nav>
+<div [@routeAnimation]="getAnimationData(routerOutlet)">
+  <router-outlet #routerOutlet="outlet"></router-outlet>
+</div>

aio/content/examples/router/src/app/app.component.2.ts

@@ -4,24 +4,14 @@ import { Component } from '@angular/core';
 // #docregion animation-imports
 import { RouterOutlet } from '@angular/router';
 import { slideInAnimation } from './animations';
-// #enddocregion animation-imports
 
 @Component({
   selector: 'app-root',
-  // #docregion template
-  template: `
-    <h1>Angular Router</h1>
-    <nav>
-      <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
-      <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
-    </nav>
-    <div [@routeAnimation]="getAnimationData(routerOutlet)">
-      <router-outlet #routerOutlet="outlet"></router-outlet>
-    </div>
-  `,
+  templateUrl: 'app.component.html',
+  styleUrls: ['app.component.css'],
   animations: [ slideInAnimation ]
-  // #enddocregion template
 })
+// #enddocregion animation-imports
 // #docregion function-binding
 export class AppComponent {
   getAnimationData(outlet: RouterOutlet) {

aio/content/examples/router/src/app/app.component.4.html

@@ -0,0 +1,15 @@
+<!-- #docregion -->
+<h1>Angular Router</h1>
+<nav>
+  <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
+  <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
+  <!-- #docregion contact-link -->
+  <a [routerLink]="[{ outlets: { popup: ['compose'] } }]">Contact</a>
+  <!-- #enddocregion contact-link -->
+</nav>
+<!-- #docregion outlets -->
+<div [@routeAnimation]="getAnimationData(routerOutlet)">
+  <router-outlet #routerOutlet="outlet"></router-outlet>
+</div>
+<router-outlet name="popup"></router-outlet>
+<!-- #enddocregion outlets -->

aio/content/examples/router/src/app/app.component.4.ts

@@ -1,25 +0,0 @@
-// #docregion
-import { Component } from '@angular/core';
-
-@Component({
-  selector: 'app-root',
-  // #docregion template
-  template: `
-    <h1 class="title">Angular Router</h1>
-    <nav>
-      <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
-      <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
-      // #docregion contact-link
-      <a [routerLink]="[{ outlets: { popup: ['compose'] } }]">Contact</a>
-      // #enddocregion contact-link
-    </nav>
-    // #docregion outlets
-    <div [@routeAnimation]="getAnimationData(routerOutlet)">
-      <router-outlet #routerOutlet="outlet"></router-outlet>
-    </div>
-    <router-outlet name="popup"></router-outlet>
-    // #enddocregion outlets
-    `
-  // #enddocregion template
-})
-export class AppComponent { }

aio/content/examples/router/src/app/app.component.5.html

@@ -0,0 +1,12 @@
+<!-- #docregion -->
+<h1 class="title">Angular Router</h1>
+<nav>
+  <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
+  <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
+  <a routerLink="/admin" routerLinkActive="active">Admin</a>
+  <a [routerLink]="[{ outlets: { popup: ['compose'] } }]">Contact</a>
+</nav>
+<div [@routeAnimation]="getAnimationData(routerOutlet)">
+  <router-outlet #routerOutlet="outlet"></router-outlet>
+</div>
+<router-outlet name="popup"></router-outlet>

aio/content/examples/router/src/app/app.component.5.ts

@@ -1,22 +0,0 @@
-// #docregion
-import { Component } from '@angular/core';
-
-@Component({
-  selector: 'app-root',
-  // #docregion template
-  template: `
-    <h1 class="title">Angular Router</h1>
-    <nav>
-      <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
-      <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
-      <a routerLink="/admin" routerLinkActive="active">Admin</a>
-      <a [routerLink]="[{ outlets: { popup: ['compose'] } }]">Contact</a>
-    </nav>
-    <div [@routeAnimation]="getAnimationData(routerOutlet)">
-      <router-outlet #routerOutlet="outlet"></router-outlet>
-    </div>
-    <router-outlet name="popup"></router-outlet>
-    `
-  // #enddocregion template
-})
-export class AppComponent { }

aio/content/examples/router/src/app/app.component.6.html

@@ -0,0 +1,13 @@
+<!-- #docregion -->
+<h1 class="title">Angular Router</h1>
+<nav>
+  <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
+  <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
+  <a routerLink="/admin" routerLinkActive="active">Admin</a>
+  <a routerLink="/login" routerLinkActive="active">Login</a>
+  <a [routerLink]="[{ outlets: { popup: ['compose'] } }]">Contact</a>
+</nav>
+<div [@routeAnimation]="getAnimationData(routerOutlet)">
+  <router-outlet #routerOutlet="outlet"></router-outlet>
+</div>
+<router-outlet name="popup"></router-outlet>

aio/content/examples/router/src/app/app.component.6.ts

@@ -1,25 +0,0 @@
-// #docplaster
-// #docregion
-import { Component } from '@angular/core';
-
-@Component({
-  selector: 'app-root',
-  // #docregion template
-  template: `
-    <h1 class="title">Angular Router</h1>
-    <nav>
-      <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
-      <a routerLink="/heroes" routerLinkActive="active">Heroes</a>
-      <a routerLink="/admin" routerLinkActive="active">Admin</a>
-      <a routerLink="/login" routerLinkActive="active">Login</a>
-      <a [routerLink]="[{ outlets: { popup: ['compose'] } }]">Contact</a>
-    </nav>
-    <div [@routeAnimation]="getAnimationData(routerOutlet)">
-      <router-outlet #routerOutlet="outlet"></router-outlet>
-    </div>
-    <router-outlet name="popup"></router-outlet>
-  `
-  // #enddocregion template
-})
-export class AppComponent {
-}

aio/content/examples/router/src/app/app.component.html

@@ -0,0 +1,13 @@
+<!-- #docregion -->
+<h1 class="title">Angular Router</h1>
+<nav>
+  <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
+  <a routerLink="/superheroes" routerLinkActive="active">Heroes</a>
+  <a routerLink="/admin" routerLinkActive="active">Admin</a>
+  <a routerLink="/login" routerLinkActive="active">Login</a>
+  <a [routerLink]="[{ outlets: { popup: ['compose'] } }]">Contact</a>
+</nav>
+<div [@routeAnimation]="getAnimationData(routerOutlet)">
+  <router-outlet #routerOutlet="outlet"></router-outlet>
+</div>
+<router-outlet name="popup"></router-outlet>

aio/content/examples/router/src/app/app.component.ts

@@ -6,23 +6,9 @@ import { slideInAnimation } from './animations';
 
 @Component({
   selector: 'app-root',
-  // #docregion template
-  template: `
-    <h1 class="title">Angular Router</h1>
-    <nav>
-      <a routerLink="/crisis-center" routerLinkActive="active">Crisis Center</a>
-      <a routerLink="/superheroes" routerLinkActive="active">Heroes</a>
-      <a routerLink="/admin" routerLinkActive="active">Admin</a>
-      <a routerLink="/login" routerLinkActive="active">Login</a>
-      <a [routerLink]="[{ outlets: { popup: ['compose'] } }]">Contact</a>
-    </nav>
-    <div [@routeAnimation]="getAnimationData(routerOutlet)">
-      <router-outlet #routerOutlet="outlet"></router-outlet>
-    </div>
-    <router-outlet name="popup"></router-outlet>
-  `,
+  templateUrl: 'app.component.html',
+  styleUrls: ['app.component.css'],
   animations: [ slideInAnimation ]
-  // #enddocregion template
 })
 export class AppComponent {
   getAnimationData(outlet: RouterOutlet) {

aio/content/examples/router/src/app/app.module.0.ts

@@ -3,10 +3,10 @@
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 
-import { HeroListComponent }      from './hero-list.component';
-import { CrisisListComponent }    from './crisis-list.component';
-import { PageNotFoundComponent }  from './not-found.component';
-import { PageNotFoundComponent as HeroDetailComponent } from './not-found.component';
+import { HeroListComponent }      from './hero-list/hero-list.component';
+import { CrisisListComponent }    from './crisis-list/crisis-list.component';
+import { PageNotFoundComponent }  from './page-not-found/page-not-found.component';
+import { PageNotFoundComponent as HeroDetailComponent } from './page-not-found/page-not-found.component';
 
 // #docregion
 const appRoutes: Routes = [

aio/content/examples/router/src/app/app.module.1.ts

@@ -9,10 +9,10 @@ import { RouterModule, Routes } from '@angular/router';
 // #enddocregion import-router
 
 import { AppComponent }          from './app.component';
-import { CrisisListComponent }   from './crisis-list.component';
-import { HeroListComponent }     from './hero-list.component';
+import { CrisisListComponent }   from './crisis-list/crisis-list.component';
+import { HeroListComponent }     from './hero-list/hero-list.component';
 // #enddocregion first-config
-import { PageNotFoundComponent } from './not-found.component';
+import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
 // #docregion first-config
 
 // #docregion appRoutes

aio/content/examples/router/src/app/app.module.2.ts

@@ -8,9 +8,9 @@ import { FormsModule }    from '@angular/forms';
 import { AppComponent }     from './app.component';
 import { AppRoutingModule } from './app-routing.module';
 
-import { CrisisListComponent }   from './crisis-list.component';
-import { HeroListComponent }     from './hero-list.component';
-import { PageNotFoundComponent } from './not-found.component';
+import { CrisisListComponent }   from './crisis-list/crisis-list.component';
+import { HeroListComponent }     from './hero-list/hero-list.component';
+import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
 
 @NgModule({
   imports: [

aio/content/examples/router/src/app/app.module.3.ts

@@ -7,8 +7,8 @@ import { AppComponent }     from './app.component';
 import { AppRoutingModule } from './app-routing.module';
 import { HeroesModule }     from './heroes/heroes.module';
 
-import { CrisisListComponent }   from './crisis-list.component';
-import { PageNotFoundComponent } from './not-found.component';
+import { CrisisListComponent }   from './crisis-list/crisis-list.component';
+import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
 
 @NgModule({
 // #docregion module-imports
@@ -27,3 +27,15 @@ import { PageNotFoundComponent } from './not-found.component';
   bootstrap: [ AppComponent ]
 })
 export class AppModule { }
+// #enddocregion
+
+/*
+// #docregion module-imports-2
+  imports: [
+    RouterModule.forChild([
+      // Heroes Routes
+    ]),
+    AppRoutingModule
+  ],
+// #enddocregion module-imports-2
+*/

aio/content/examples/router/src/app/app.module.4.ts

@@ -6,19 +6,17 @@ import { CommonModule }   from '@angular/common';
 import { FormsModule }    from '@angular/forms';
 
 import { AppComponent }            from './app.component';
-import { PageNotFoundComponent }   from './not-found.component';
+import { PageNotFoundComponent }   from './page-not-found/page-not-found.component';
+import { ComposeMessageComponent } from './compose-message/compose-message.component';
 
 import { AppRoutingModule }        from './app-routing.module';
 import { HeroesModule }            from './heroes/heroes.module';
 import { CrisisCenterModule }      from './crisis-center/crisis-center.module';
-// #enddocregion crisis-center-module, admin-module
-import { ComposeMessageComponent } from './compose-message.component';
-// #docregion admin-module
+// #enddocregion crisis-center-module
+
 import { AdminModule }             from './admin/admin.module';
 // #docregion crisis-center-module
 
-import { DialogService }           from './dialog.service';
-
 @NgModule({
   imports: [
     CommonModule,
@@ -32,14 +30,11 @@ import { DialogService }           from './dialog.service';
   ],
   declarations: [
     AppComponent,
-// #enddocregion admin-module, crisis-center-module
+// #enddocregion crisis-center-module
     ComposeMessageComponent,
-// #docregion admin-module, crisis-center-module
+// #docregion crisis-center-module
     PageNotFoundComponent
   ],
-  providers: [
-    DialogService
-  ],
   bootstrap: [ AppComponent ]
 })
 export class AppModule { }

aio/content/examples/router/src/app/app.module.5.ts

@@ -10,11 +10,10 @@ import { AppRoutingModule }        from './app-routing.module';
 import { HeroesModule }            from './heroes/heroes.module';
 import { CrisisCenterModule }      from './crisis-center/crisis-center.module';
 
-import { ComposeMessageComponent } from './compose-message.component';
-import { PageNotFoundComponent } from './not-found.component';
+import { ComposeMessageComponent } from './compose-message/compose-message.component';
+import { PageNotFoundComponent }   from './page-not-found/page-not-found.component';
 
 import { AdminModule }             from './admin/admin.module';
-import { DialogService }           from './dialog.service';
 
 @NgModule({
   imports: [
@@ -30,9 +29,6 @@ import { DialogService }           from './dialog.service';
     ComposeMessageComponent,
     PageNotFoundComponent
   ],
-  providers: [
-    DialogService
-  ],
   bootstrap: [ AppComponent ]
 })
 export class AppModule { }

aio/content/examples/router/src/app/app.module.6.ts

@@ -5,7 +5,7 @@ import { FormsModule }          from '@angular/forms';
 import { Routes, RouterModule } from '@angular/router';
 
 import { AppComponent }          from './app.component';
-import { PageNotFoundComponent } from './not-found.component';
+import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
 
 const routes: Routes = [
 

aio/content/examples/router/src/app/app.module.7.ts

@@ -2,18 +2,16 @@
 import { NgModule }       from '@angular/core';
 import { BrowserModule }  from '@angular/platform-browser';
 import { FormsModule }    from '@angular/forms';
+import { Router }         from '@angular/router';
 
-import { AppComponent }         from './app.component';
-import { AppRoutingModule }     from './app-routing.module';
+import { AppComponent }            from './app.component';
+import { PageNotFoundComponent }   from './page-not-found/page-not-found.component';
+import { ComposeMessageComponent } from './compose-message/compose-message.component';
 
+import { AppRoutingModule }        from './app-routing.module';
 import { HeroesModule }            from './heroes/heroes.module';
 import { CrisisCenterModule }      from './crisis-center/crisis-center.module';
-import { ComposeMessageComponent } from './compose-message.component';
-import { LoginRoutingModule }      from './login-routing.module';
-import { LoginComponent }          from './login.component';
-import { PageNotFoundComponent }   from './not-found.component';
-
-import { DialogService }       from './dialog.service';
+import { AuthModule }              from './auth/auth.module';
 
 @NgModule({
   imports: [
@@ -21,18 +19,24 @@ import { DialogService }       from './dialog.service';
     FormsModule,
     HeroesModule,
     CrisisCenterModule,
-    LoginRoutingModule,
+    AuthModule,
     AppRoutingModule
   ],
   declarations: [
     AppComponent,
     ComposeMessageComponent,
-    LoginComponent,
     PageNotFoundComponent
   ],
-  providers: [
-    DialogService
-  ],
   bootstrap: [ AppComponent ]
 })
-export class AppModule { }
+// #docregion inspect-config
+export class AppModule {
+  // Diagnostic only: inspect router configuration
+  constructor(router: Router) {
+    // Use a custom replacer to display function names in the route configs
+    const replacer = (key, value) => (typeof value === 'function') ? value.name : value;
+
+    console.log('Routes: ', JSON.stringify(router.config, replacer, 2));
+  }
+}
+// #enddocregion inspect-config

aio/content/examples/router/src/app/app.module.ts

@@ -1,56 +1,58 @@
 // #docplaster
-// #docregion
+// #docregion auth, preload
 import { NgModule }       from '@angular/core';
 import { BrowserModule }  from '@angular/platform-browser';
 import { FormsModule }    from '@angular/forms';
 // #docregion animations-module
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 
-// #enddocregion animations-module
+// #enddocregion auth, animations-module
 // #docregion inspect-config
 import { Router } from '@angular/router';
 
 // #enddocregion inspect-config
+// #docregion auth
 import { AppComponent }            from './app.component';
+import { PageNotFoundComponent }   from './page-not-found/page-not-found.component';
+import { ComposeMessageComponent } from './compose-message/compose-message.component';
+
 import { AppRoutingModule }        from './app-routing.module';
-
 import { HeroesModule }            from './heroes/heroes.module';
-import { ComposeMessageComponent } from './compose-message.component';
-import { LoginRoutingModule }      from './login-routing.module';
-import { LoginComponent }          from './login.component';
-import { PageNotFoundComponent }   from './not-found.component';
-
-import { DialogService }           from './dialog.service';
+import { AuthModule }              from './auth/auth.module';
 
 // #docregion animations-module
 @NgModule({
   imports: [
     // #enddocregion animations-module
     BrowserModule,
+    // #docregion animations-module
+    BrowserAnimationsModule,
+    // #enddocregion animations-module
     FormsModule,
     HeroesModule,
-    LoginRoutingModule,
+    AuthModule,
     AppRoutingModule,
     // #docregion animations-module
-    BrowserAnimationsModule
-    // #enddocregion animations-module
   ],
+  // #enddocregion animations-module
   declarations: [
     AppComponent,
     ComposeMessageComponent,
-    LoginComponent,
     PageNotFoundComponent
   ],
-  providers: [
-    DialogService
-  ],
   bootstrap: [ AppComponent ]
+// #docregion animations-module
 })
-// #docregion inspect-config
+// #enddocregion animations-module
 export class AppModule {
+// #enddocregion preload, auth
   // Diagnostic only: inspect router configuration
   constructor(router: Router) {
-    console.log('Routes: ', JSON.stringify(router.config, undefined, 2));
+    // Use a custom replacer to display function names in the route configs
+    // const replacer = (key, value) => (typeof value === 'function') ? value.name : value;
+
+    // console.log('Routes: ', JSON.stringify(router.config, replacer, 2));
   }
+// #docregion preload, auth
 }
-// #enddocregion inspect-config
+// #enddocregion preload, auth

aio/content/examples/router/src/app/auth-guard.service.1.ts

@@ -1,11 +0,0 @@
-// #docregion
-import { Injectable }     from '@angular/core';
-import { CanActivate }    from '@angular/router';
-
-@Injectable()
-export class AuthGuard implements CanActivate {
-  canActivate() {
-    console.log('AuthGuard#canActivate called');
-    return true;
-  }
-}

aio/content/examples/router/src/app/auth/auth-routing.module.ts

@@ -1,24 +1,20 @@
 // #docregion
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
-import { AuthGuard }            from './auth-guard.service';
+import { AuthGuard }            from './auth.guard';
 import { AuthService }          from './auth.service';
-import { LoginComponent }       from './login.component';
+import { LoginComponent }       from './login/login.component';
 
-const loginRoutes: Routes = [
+const authRoutes: Routes = [
   { path: 'login', component: LoginComponent }
 ];
 
 @NgModule({
   imports: [
-    RouterModule.forChild(loginRoutes)
+    RouterModule.forChild(authRoutes)
   ],
   exports: [
     RouterModule
-  ],
-  providers: [
-    AuthGuard,
-    AuthService
   ]
 })
-export class LoginRoutingModule {}
+export class AuthRoutingModule {}

aio/content/examples/router/src/app/auth/auth.guard.1.ts

@@ -0,0 +1,16 @@
+// #docregion
+import { Injectable } from '@angular/core';
+import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router';
+import { Observable } from 'rxjs/Observable';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class AuthGuard implements CanActivate {
+  canActivate(
+    next: ActivatedRouteSnapshot,
+    state: RouterStateSnapshot): boolean {
+    console.log('AuthGuard#canActivate called');
+    return true;
+  }
+}

aio/content/examples/router/src/app/auth/auth.guard.2.ts

@@ -1,17 +1,19 @@
 // #docregion
-import { Injectable }       from '@angular/core';
-import {
-  CanActivate, Router,
-  ActivatedRouteSnapshot,
-  RouterStateSnapshot
-}                           from '@angular/router';
+import { Injectable } from '@angular/core';
+import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, Router } from '@angular/router';
+import { Observable } from 'rxjs/Observable';
+
 import { AuthService }      from './auth.service';
 
-@Injectable()
+@Injectable({
+  providedIn: 'root'
+})
 export class AuthGuard implements CanActivate {
   constructor(private authService: AuthService, private router: Router) {}
 
-  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
+  canActivate(
+    next: ActivatedRouteSnapshot,
+    state: RouterStateSnapshot): boolean {
     let url: string = state.url;
 
     return this.checkLogin(url);

aio/content/examples/router/src/app/auth/auth.guard.3.ts

@@ -1,4 +1,3 @@
-// #docregion
 // #docregion can-activate-child
 import { Injectable }       from '@angular/core';
 import {
@@ -9,17 +8,23 @@ import {
 }                           from '@angular/router';
 import { AuthService }      from './auth.service';
 
-@Injectable()
+@Injectable({
+  providedIn: 'root'
+})
 export class AuthGuard implements CanActivate, CanActivateChild {
   constructor(private authService: AuthService, private router: Router) {}
 
-  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
+  canActivate(
+    route: ActivatedRouteSnapshot,
+    state: RouterStateSnapshot): boolean {
     let url: string = state.url;
 
     return this.checkLogin(url);
   }
 
-  canActivateChild(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
+  canActivateChild(
+    route: ActivatedRouteSnapshot,
+    state: RouterStateSnapshot): boolean {
     return this.canActivate(route, state);
   }
 

aio/content/examples/router/src/app/auth/auth.guard.4.ts

@@ -10,7 +10,9 @@ import {
 }                           from '@angular/router';
 import { AuthService }      from './auth.service';
 
-@Injectable()
+@Injectable({
+  providedIn: 'root'
+})
 export class AuthGuard implements CanActivate, CanActivateChild {
   constructor(private authService: AuthService, private router: Router) {}
 

aio/content/examples/router/src/app/auth/auth.guard.ts

@@ -10,7 +10,9 @@ import {
 }                           from '@angular/router';
 import { AuthService }      from './auth.service';
 
-@Injectable()
+@Injectable({
+  providedIn: 'root'
+})
 export class AuthGuard implements CanActivate, CanActivateChild, CanLoad {
   constructor(private authService: AuthService, private router: Router) {}
 

aio/content/examples/router/src/app/auth/auth.module.ts

@@ -0,0 +1,25 @@
+// #docplaster
+// #docregion
+import { NgModule }       from '@angular/core';
+import { CommonModule }   from '@angular/common';
+import { FormsModule }    from '@angular/forms';
+
+import { LoginComponent }    from './login/login.component';
+import { AuthRoutingModule } from './auth-routing.module';
+
+// #docregion v1
+@NgModule({
+  imports: [
+    CommonModule,
+    FormsModule,
+// #enddocregion v1
+    AuthRoutingModule
+// #docregion v1
+  ],
+  declarations: [
+    LoginComponent
+  ]
+})
+export class AuthModule {}
+// #enddocregion v1
+// #enddocregion

aio/content/examples/router/src/app/auth/auth.service.ts

@@ -4,7 +4,9 @@ import { Injectable } from '@angular/core';
 import { Observable, of } from 'rxjs';
 import { tap, delay } from 'rxjs/operators';
 
-@Injectable()
+@Injectable({
+  providedIn: 'root'
+})
 export class AuthService {
   isLoggedIn = false;
 

aio/content/examples/router/src/app/auth/login/login.component.1.ts

@@ -1,16 +1,12 @@
 // #docregion
 import { Component }   from '@angular/core';
 import { Router }      from '@angular/router';
-import { AuthService } from './auth.service';
+import { AuthService } from '../auth.service';
 
 @Component({
-  template: `
-    <h2>LOGIN</h2>
-    <p>{{message}}</p>
-    <p>
-      <button (click)="login()"  *ngIf="!authService.isLoggedIn">Login</button>
-      <button (click)="logout()" *ngIf="authService.isLoggedIn">Logout</button>
-    </p>`
+  selector: 'app-login',
+  templateUrl: './login.component.html',
+  styleUrls: ['./login.component.css']
 })
 export class LoginComponent {
   message: string;

aio/content/examples/router/src/app/auth/login/login.component.html

@@ -0,0 +1,6 @@
+<h2>LOGIN</h2>
+<p>{{message}}</p>
+<p>
+  <button (click)="login()"  *ngIf="!authService.isLoggedIn">Login</button>
+  <button (click)="logout()" *ngIf="authService.isLoggedIn">Logout</button>
+</p>

aio/content/examples/router/src/app/auth/login/login.component.ts

@@ -2,16 +2,12 @@
 import { Component }        from '@angular/core';
 import { Router,
          NavigationExtras } from '@angular/router';
-import { AuthService }      from './auth.service';
+import { AuthService }      from '../auth.service';
 
 @Component({
-  template: `
-    <h2>LOGIN</h2>
-    <p>{{message}}</p>
-    <p>
-      <button (click)="login()"  *ngIf="!authService.isLoggedIn">Login</button>
-      <button (click)="logout()" *ngIf="authService.isLoggedIn">Logout</button>
-    </p>`
+  selector: 'app-login',
+  templateUrl: './login.component.html',
+  styleUrls: ['./login.component.css']
 })
 export class LoginComponent {
   message: string;

aio/content/examples/router/src/app/can-deactivate.guard.1.ts

@@ -5,9 +5,11 @@ import { CanDeactivate,
          ActivatedRouteSnapshot,
          RouterStateSnapshot }  from '@angular/router';
 
-import { CrisisDetailComponent } from './crisis-center/crisis-detail.component';
+import { CrisisDetailComponent } from './crisis-center/crisis-detail/crisis-detail.component';
 
-@Injectable()
+@Injectable({
+  providedIn: 'root'
+})
 export class CanDeactivateGuard implements CanDeactivate<CrisisDetailComponent> {
 
   canDeactivate(

aio/content/examples/router/src/app/can-deactivate.guard.ts

@@ -7,7 +7,9 @@ export interface CanComponentDeactivate {
  canDeactivate: () => Observable<boolean> | Promise<boolean> | boolean;
 }
 
-@Injectable()
+@Injectable({
+  providedIn: 'root'
+})
 export class CanDeactivateGuard implements CanDeactivate<CanComponentDeactivate> {
   canDeactivate(component: CanComponentDeactivate) {
     return component.canDeactivate ? component.canDeactivate() : true;

aio/content/examples/router/src/app/compose-message/compose-message.component.css

@@ -0,0 +1,3 @@
+:host {
+  position: relative; bottom: 10%;
+}

aio/content/examples/router/src/app/compose-message/compose-message.component.ts

@@ -3,8 +3,9 @@ import { Component, HostBinding } from '@angular/core';
 import { Router }                 from '@angular/router';
 
 @Component({
+  selector: 'app-compose-message',
   templateUrl: './compose-message.component.html',
-  styles: [ ':host { position: relative; bottom: 10%; }' ]
+  styleUrls: ['./compose-message.component.css']
 })
 export class ComposeMessageComponent {
   details: string;

aio/content/examples/router/src/app/crisis-center/crisis-center-home.component.ts

@@ -1,9 +0,0 @@
-// #docregion
-import { Component } from '@angular/core';
-
-@Component({
-  template: `
-    <p>Welcome to the Crisis Center</p>
-  `
-})
-export class CrisisCenterHomeComponent { }

aio/content/examples/router/src/app/crisis-center/crisis-center-home/crisis-center-home.component.html

@@ -0,0 +1 @@
+<p>Welcome to the Crisis Center</p>

aio/content/examples/router/src/app/crisis-center/crisis-center-home/crisis-center-home.component.ts

@@ -0,0 +1,9 @@
+// #docregion
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-crisis-center-home',
+  templateUrl: './crisis-center-home.component.html',
+  styleUrls: ['./crisis-center-home.component.css']
+})
+export class CrisisCenterHomeComponent { }

aio/content/examples/router/src/app/crisis-center/crisis-center-routing.module.1.ts

@@ -3,10 +3,10 @@
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 
-import { CrisisCenterHomeComponent } from './crisis-center-home.component';
-import { CrisisListComponent }       from './crisis-list.component';
-import { CrisisCenterComponent }     from './crisis-center.component';
-import { CrisisDetailComponent }     from './crisis-detail.component';
+import { CrisisCenterHomeComponent } from './crisis-center-home/crisis-center-home.component';
+import { CrisisListComponent }       from './crisis-list/crisis-list.component';
+import { CrisisCenterComponent }     from './crisis-center/crisis-center.component';
+import { CrisisDetailComponent }     from './crisis-detail/crisis-detail.component';
 
 // #docregion routes
 const crisisCenterRoutes: Routes = [

aio/content/examples/router/src/app/crisis-center/crisis-center-routing.module.2.ts

@@ -3,30 +3,23 @@
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 
-import { CrisisCenterHomeComponent } from './crisis-center-home.component';
-import { CrisisListComponent }       from './crisis-list.component';
-import { CrisisCenterComponent }     from './crisis-center.component';
-import { CrisisDetailComponent }     from './crisis-detail.component';
+import { CrisisCenterHomeComponent } from './crisis-center-home/crisis-center-home.component';
+import { CrisisListComponent }       from './crisis-list/crisis-list.component';
+import { CrisisCenterComponent }     from './crisis-center/crisis-center.component';
+import { CrisisDetailComponent }     from './crisis-detail/crisis-detail.component';
 // #enddocregion routes
 
 // #docregion can-deactivate-guard
-import { CanDeactivateGuard }    from '../can-deactivate-guard.service';
+import { CanDeactivateGuard }    from '../can-deactivate.guard';
 // #enddocregion can-deactivate-guard
 // #docregion crisis-detail-resolver
-import { CrisisDetailResolver }  from './crisis-detail-resolver.service';
+import { CrisisDetailResolverService }  from './crisis-detail-resolver.service';
 
 // #enddocregion crisis-detail-resolver
 // #docregion routes
 
 const crisisCenterRoutes: Routes = [
 // #enddocregion routes
-  // #docregion redirect, routes
-  {
-    path: '',
-    redirectTo: '/crisis-center',
-    pathMatch: 'full'
-  },
-  // #enddocregion redirect, routes
   // #docregion routes
   {
     path: 'crisis-center',
@@ -45,7 +38,7 @@ const crisisCenterRoutes: Routes = [
             // #enddocregion can-deactivate-guard
             // #docregion crisis-detail-resolver
             resolve: {
-              crisis: CrisisDetailResolver
+              crisis: CrisisDetailResolverService
             }
             // #enddocregion crisis-detail-resolver
   // #docregion routes

aio/content/examples/router/src/app/crisis-center/crisis-center-routing.module.3.ts

@@ -3,20 +3,15 @@
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 
-import { CrisisCenterHomeComponent } from './crisis-center-home.component';
-import { CrisisListComponent }       from './crisis-list.component';
-import { CrisisCenterComponent }     from './crisis-center.component';
-import { CrisisDetailComponent }     from './crisis-detail.component';
+import { CrisisCenterHomeComponent } from './crisis-center-home/crisis-center-home.component';
+import { CrisisListComponent }       from './crisis-list/crisis-list.component';
+import { CrisisCenterComponent }     from './crisis-center/crisis-center.component';
+import { CrisisDetailComponent }     from './crisis-detail/crisis-detail.component';
 
 // #docregion can-deactivate-guard
-import { CanDeactivateGuard }    from '../can-deactivate-guard.service';
+import { CanDeactivateGuard }    from '../can-deactivate.guard';
 
 const crisisCenterRoutes: Routes = [
-  {
-    path: '',
-    redirectTo: '/crisis-center',
-    pathMatch: 'full'
-  },
   {
     path: 'crisis-center',
     component: CrisisCenterComponent,

aio/content/examples/router/src/app/crisis-center/crisis-center-routing.module.4.ts

@@ -3,25 +3,15 @@
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 
-import { CrisisCenterHomeComponent } from './crisis-center-home.component';
-import { CrisisListComponent }       from './crisis-list.component';
-import { CrisisCenterComponent }     from './crisis-center.component';
-import { CrisisDetailComponent }     from './crisis-detail.component';
+import { CrisisCenterHomeComponent } from './crisis-center-home/crisis-center-home.component';
+import { CrisisListComponent }       from './crisis-list/crisis-list.component';
+import { CrisisCenterComponent }     from './crisis-center/crisis-center.component';
+import { CrisisDetailComponent }     from './crisis-detail/crisis-detail.component';
 
-import { CanDeactivateGuard }     from '../can-deactivate-guard.service';
+import { CanDeactivateGuard }             from '../can-deactivate.guard';
+import { CrisisDetailResolverService }    from './crisis-detail-resolver.service';
 
-// #docregion crisis-detail-resolver
-import { CrisisDetailResolver }   from './crisis-detail-resolver.service';
-
-// #enddocregion crisis-detail-resolver
 const crisisCenterRoutes: Routes = [
-  // #docregion redirect
-  {
-    path: '',
-    redirectTo: '/crisis-center',
-    pathMatch: 'full'
-  },
-  // #enddocregion redirect
   {
     path: 'crisis-center',
     component: CrisisCenterComponent,
@@ -35,7 +25,7 @@ const crisisCenterRoutes: Routes = [
             component: CrisisDetailComponent,
             canDeactivate: [CanDeactivateGuard],
             resolve: {
-              crisis: CrisisDetailResolver
+              crisis: CrisisDetailResolverService
             }
           },
           {
@@ -48,18 +38,13 @@ const crisisCenterRoutes: Routes = [
   }
 ];
 
-// #docregion crisis-detail-resolver
 @NgModule({
   imports: [
     RouterModule.forChild(crisisCenterRoutes)
   ],
   exports: [
     RouterModule
-  ],
-  providers: [
-    CrisisDetailResolver
   ]
 })
 export class CrisisCenterRoutingModule { }
-// #enddocregion crisis-detail-resolver
 // #enddocregion

aio/content/examples/router/src/app/crisis-center/crisis-center-routing.module.ts

@@ -3,13 +3,13 @@
 import { NgModule }             from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 
-import { CrisisCenterHomeComponent } from './crisis-center-home.component';
-import { CrisisListComponent }       from './crisis-list.component';
-import { CrisisCenterComponent }     from './crisis-center.component';
-import { CrisisDetailComponent }     from './crisis-detail.component';
+import { CrisisCenterHomeComponent } from './crisis-center-home/crisis-center-home.component';
+import { CrisisListComponent }       from './crisis-list/crisis-list.component';
+import { CrisisCenterComponent }     from './crisis-center/crisis-center.component';
+import { CrisisDetailComponent }     from './crisis-detail/crisis-detail.component';
 
-import { CanDeactivateGuard }     from '../can-deactivate-guard.service';
-import { CrisisDetailResolver }   from './crisis-detail-resolver.service';
+import { CanDeactivateGuard }             from '../can-deactivate.guard';
+import { CrisisDetailResolverService }    from './crisis-detail-resolver.service';
 
 const crisisCenterRoutes: Routes = [
   {
@@ -25,7 +25,7 @@ const crisisCenterRoutes: Routes = [
             component: CrisisDetailComponent,
             canDeactivate: [CanDeactivateGuard],
             resolve: {
-              crisis: CrisisDetailResolver
+              crisis: CrisisDetailResolverService
             }
           },
           {
@@ -44,9 +44,6 @@ const crisisCenterRoutes: Routes = [
   ],
   exports: [
     RouterModule
-  ],
-  providers: [
-    CrisisDetailResolver
   ]
 })
 export class CrisisCenterRoutingModule { }

aio/content/examples/router/src/app/crisis-center/crisis-center.component.ts

@@ -1,10 +0,0 @@
-// #docregion
-import { Component } from '@angular/core';
-
-@Component({
-  template:  `
-    <h2>CRISIS CENTER</h2>
-    <router-outlet></router-outlet>
-  `
-})
-export class CrisisCenterComponent { }

aio/content/examples/router/src/app/crisis-center/crisis-center.module.1.ts

@@ -1,36 +0,0 @@
-// #docplaster
-// #docregion
-import { NgModule }       from '@angular/core';
-import { FormsModule }    from '@angular/forms';
-import { CommonModule }   from '@angular/common';
-
-import { CrisisService }        from './crisis.service';
-
-import { CrisisCenterComponent }      from './crisis-center.component';
-import { CrisisListComponent }        from './crisis-list.component';
-import { CrisisCenterHomeComponent }  from './crisis-center-home.component';
-import { CrisisDetailComponent }      from './crisis-detail.component';
-
-import { CrisisCenterRoutingModule }  from './crisis-center-routing.module';
-
-@NgModule({
-  imports: [
-    CommonModule,
-    FormsModule,
-    CrisisCenterRoutingModule
-  ],
-  declarations: [
-    CrisisCenterComponent,
-    CrisisListComponent,
-    CrisisCenterHomeComponent,
-    CrisisDetailComponent
-  ],
-
-  // #docregion providers
-  providers: [
-    CrisisService
-  ]
-  // #enddocregion providers
-})
-export class CrisisCenterModule {}
-// #enddocregion

aio/content/examples/router/src/app/crisis-center/crisis-center.module.ts

@@ -1,15 +1,12 @@
-// #docplaster
 // #docregion
 import { NgModule }       from '@angular/core';
 import { FormsModule }    from '@angular/forms';
 import { CommonModule }   from '@angular/common';
 
-import { CrisisService }        from './crisis.service';
-
-import { CrisisCenterComponent }     from './crisis-center.component';
-import { CrisisListComponent }       from './crisis-list.component';
-import { CrisisCenterHomeComponent } from './crisis-center-home.component';
-import { CrisisDetailComponent }     from './crisis-detail.component';
+import { CrisisCenterHomeComponent } from './crisis-center-home/crisis-center-home.component';
+import { CrisisListComponent }       from './crisis-list/crisis-list.component';
+import { CrisisCenterComponent }     from './crisis-center/crisis-center.component';
+import { CrisisDetailComponent }     from './crisis-detail/crisis-detail.component';
 
 import { CrisisCenterRoutingModule } from './crisis-center-routing.module';
 
@@ -24,12 +21,6 @@ import { CrisisCenterRoutingModule } from './crisis-center-routing.module';
     CrisisListComponent,
     CrisisCenterHomeComponent,
     CrisisDetailComponent
-  ],
-  providers: [
-    CrisisService
   ]
 })
-// #docregion crisis-center-module-export
 export class CrisisCenterModule {}
-// #enddocregion crisis-center-module-export
-// #enddocregion

aio/content/examples/router/src/app/crisis-center/crisis-center/crisis-center.component.html

@@ -0,0 +1,2 @@
+<h2>CRISIS CENTER</h2>
+<router-outlet></router-outlet>

aio/content/examples/router/src/app/crisis-center/crisis-center/crisis-center.component.ts

@@ -0,0 +1,9 @@
+// #docregion
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-crisis-center',
+  templateUrl: './crisis-center.component.html',
+  styleUrls: ['./crisis-center.component.css']
+})
+export class CrisisCenterComponent { }

aio/content/examples/router/src/app/crisis-center/crisis-detail-resolver.service.1.ts

@@ -0,0 +1,11 @@
+// #docregion
+import { Injectable } from '@angular/core';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class CrisisDetailResolverService {
+
+  constructor() { }
+
+}

aio/content/examples/router/src/app/crisis-center/crisis-detail-resolver.service.ts

@@ -1,27 +1,31 @@
+
 // #docregion
 import { Injectable }             from '@angular/core';
 import { Router, Resolve, RouterStateSnapshot,
          ActivatedRouteSnapshot } from '@angular/router';
-import { Observable }             from 'rxjs';
-import { map, take }              from 'rxjs/operators';
+import { Observable, of, EMPTY as empty }             from 'rxjs';
+import { mergeMap, take }              from 'rxjs/operators';
 
-import { Crisis, CrisisService }  from './crisis.service';
+import { CrisisService }  from './crisis.service';
+import { Crisis } from './crisis';
 
-@Injectable()
-export class CrisisDetailResolver implements Resolve<Crisis> {
+@Injectable({
+  providedIn: 'root'
+})
+export class CrisisDetailResolverService implements Resolve<Crisis> {
   constructor(private cs: CrisisService, private router: Router) {}
 
-  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<Crisis> {
+  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<Crisis> | Observable<never> {
     let id = route.paramMap.get('id');
 
     return this.cs.getCrisis(id).pipe(
       take(1),
-      map(crisis => {
+      mergeMap(crisis => {
         if (crisis) {
-          return crisis;
+          return of(crisis);
         } else { // id not found
           this.router.navigate(['/crisis-center']);
-          return null;
+          return empty;
         }
       })
     );

aio/content/examples/router/src/app/crisis-center/crisis-detail/crisis-detail.component.1.ts

@@ -1,30 +1,18 @@
 // #docplaster
 // #docregion
-import { Component, OnInit, HostBinding }   from '@angular/core';
+import { Component, OnInit }   from '@angular/core';
 import { ActivatedRoute, Router, ParamMap } from '@angular/router';
 import { Observable }                       from 'rxjs';
 import { switchMap }                        from 'rxjs/operators';
 
-import { Crisis, CrisisService }  from './crisis.service';
-import { DialogService }          from '../dialog.service';
+import { CrisisService }  from '../crisis.service';
+import { Crisis }         from '../crisis';
+import { DialogService }  from '../../dialog.service';
 
 @Component({
-  template: `
-  <div *ngIf="crisis">
-    <h3>"{{ editName }}"</h3>
-    <div>
-      <label>Id: </label>{{ crisis.id }}</div>
-    <div>
-      <label>Name: </label>
-      <input [(ngModel)]="editName" placeholder="name"/>
-    </div>
-    <p>
-      <button (click)="save()">Save</button>
-      <button (click)="cancel()">Cancel</button>
-    </p>
-  </div>
-  `,
-  styles: ['input {width: 20em}']
+  selector: 'app-crisis-detail',
+  templateUrl: './crisis-detail.component.html',
+  styleUrls: ['./crisis-detail.component.css']
 })
 export class CrisisDetailComponent implements OnInit {
   crisis: Crisis;

aio/content/examples/router/src/app/crisis-center/crisis-detail/crisis-detail.component.css

@@ -0,0 +1,3 @@
+input {
+  width: 20em
+}

aio/content/examples/router/src/app/crisis-center/crisis-detail/crisis-detail.component.html

@@ -0,0 +1,13 @@
+<div *ngIf="crisis">
+  <h3>"{{ editName }}"</h3>
+  <div>
+    <label>Id: </label>{{ crisis.id }}</div>
+  <div>
+    <label>Name: </label>
+    <input [(ngModel)]="editName" placeholder="name"/>
+  </div>
+  <p>
+    <button (click)="save()">Save</button>
+    <button (click)="cancel()">Cancel</button>
+  </p>
+</div>

aio/content/examples/router/src/app/crisis-center/crisis-detail/crisis-detail.component.ts

@@ -4,26 +4,13 @@ import { Component, OnInit, HostBinding } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
 import { Observable } from 'rxjs';
 
-import { Crisis }         from './crisis.service';
-import { DialogService }  from '../dialog.service';
+import { Crisis }         from '../crisis';
+import { DialogService }  from '../../dialog.service';
 
 @Component({
-  template: `
-  <div *ngIf="crisis">
-    <h3>"{{ editName }}"</h3>
-    <div>
-      <label>Id: </label>{{ crisis.id }}</div>
-    <div>
-      <label>Name: </label>
-      <input [(ngModel)]="editName" placeholder="name"/>
-    </div>
-    <p>
-      <button (click)="save()">Save</button>
-      <button (click)="cancel()">Cancel</button>
-    </p>
-  </div>
-  `,
-  styles: ['input {width: 20em}']
+  selector: 'app-crisis-detail',
+  templateUrl: './crisis-detail.component.html',
+  styleUrls: ['./crisis-detail.component.css']
 })
 export class CrisisDetailComponent implements OnInit {
   crisis: Crisis;

aio/content/examples/router/src/app/crisis-center/crisis-list.component.1.ts

@@ -1,44 +0,0 @@
-
-import { Component, OnInit }        from '@angular/core';
-import { ActivatedRoute, ParamMap } from '@angular/router';
-
-import { Crisis, CrisisService } from './crisis.service';
-import { Observable }            from 'rxjs';
-import { switchMap }             from 'rxjs/operators';
-
-@Component({
-  // #docregion relative-navigation-router-link
-  template: `
-    <ul class="items">
-      <li *ngFor="let crisis of crises$ | async"
-        [class.selected]="crisis.id === selectedId">
-        <a [routerLink]="[crisis.id]">
-          <span class="badge">{{ crisis.id }}</span>{{ crisis.name }}
-        </a>
-      </li>
-    </ul>
-
-    <router-outlet></router-outlet>
-    `
-  // #enddocregion relative-navigation-router-link
-})
-export class CrisisListComponent implements OnInit {
-  crises$: Observable<Crisis[]>;
-  selectedId: number;
-
-
-  constructor(
-    private service: CrisisService,
-    private route: ActivatedRoute
-  ) {}
-
-
-  ngOnInit() {
-    this.crises$ = this.route.paramMap.pipe(
-      switchMap((params: ParamMap) => {
-        this.selectedId = +params.get('id');
-        return this.service.getCrises();
-      })
-    );
-  }
-}

aio/content/examples/router/src/app/crisis-center/crisis-list/crisis-list.component.1.ts

@@ -1,35 +1,26 @@
-// #docregion
+
 import { Component, OnInit }        from '@angular/core';
 import { ActivatedRoute, ParamMap } from '@angular/router';
 
-import { Crisis, CrisisService } from './crisis.service';
+import { CrisisService }         from '../crisis.service';
+import { Crisis }                from '../crisis';
 import { Observable }            from 'rxjs';
 import { switchMap }             from 'rxjs/operators';
 
 @Component({
-  template: `
-    <ul class="items">
-      <li *ngFor="let crisis of crises$ | async"
-        [class.selected]="crisis.id === selectedId">
-        <a [routerLink]="[crisis.id]">
-          <span class="badge">{{ crisis.id }}</span>{{ crisis.name }}
-        </a>
-      </li>
-    </ul>
-
-    <router-outlet></router-outlet>
-  `
+  selector: 'app-crisis-list',
+  templateUrl: './crisis-list.component.html',
+  styleUrls: ['./crisis-list.component.css']
 })
 export class CrisisListComponent implements OnInit {
   crises$: Observable<Crisis[]>;
   selectedId: number;
 
-  // #docregion ctor
   constructor(
     private service: CrisisService,
     private route: ActivatedRoute
   ) {}
-  // #enddocregion ctor
+
 
   ngOnInit() {
     this.crises$ = this.route.paramMap.pipe(

aio/content/examples/router/src/app/crisis-center/crisis-list/crisis-list.component.css

@@ -1,41 +1,37 @@
-/* items class */
-.items {
+/* CrisisListComponent's private CSS styles */
+.crises {
   margin: 0 0 2em 0;
   list-style-type: none;
   padding: 0;
   width: 24em;
 }
-.items li {
-  cursor: pointer;
+.crises li {
   position: relative;
-  left: 0;
+  cursor: pointer;
   background-color: #EEE;
   margin: .5em;
   padding: .3em 0;
   height: 1.6em;
   border-radius: 4px;
 }
-.items li a {
-  display: block;
-  text-decoration: none;
-}
-.items li:hover {
+
+.crises li:hover {
   color: #607D8B;
   background-color: #DDD;
   left: .1em;
 }
-.items li.selected {
-  background-color: #CFD8DC;
-  color: white;
+
+.crises a {
+  color: #888;
+  text-decoration: none;
+  display: block;
 }
-.items li.selected:hover {
-  background-color: #BBD8DC;
+
+.crises a:hover {
+  color:#607D8B;
 }
-.items .text {
-  position: relative;
-  top: -3px;
-}
-.items .badge {
+
+.crises .badge {
   display: inline-block;
   font-size: small;
   color: white;
@@ -46,6 +42,38 @@
   left: -1px;
   top: -4px;
   height: 1.8em;
+  min-width: 16px;
+  text-align: right;
   margin-right: .8em;
   border-radius: 4px 0 0 4px;
 }
+
+button {
+  background-color: #eee;
+  border: none;
+  padding: 5px 10px;
+  border-radius: 4px;
+  cursor: pointer;
+  cursor: hand;
+  font-family: Arial;
+}
+
+button:hover {
+  background-color: #cfd8dc;
+}
+
+button.delete {
+  position: relative;
+  left: 194px;
+  top: -32px;
+  background-color: gray !important;
+  color: white;
+}
+
+.crises li.selected {
+  background-color: #CFD8DC;
+  color: white;
+}
+.crises li.selected:hover {
+  background-color: #BBD8DC;
+}

aio/content/examples/router/src/app/crisis-center/crisis-list/crisis-list.component.html

@@ -0,0 +1,12 @@
+<!-- #docregion relative-navigation-router-link -->
+  <ul class="crises">
+    <li *ngFor="let crisis of crises$ | async"
+      [class.selected]="crisis.id === selectedId">
+      <a [routerLink]="[crisis.id]">
+        <span class="badge">{{ crisis.id }}</span>{{ crisis.name }}
+      </a>
+    </li>
+  </ul>
+
+  <router-outlet></router-outlet>
+<!-- #enddocregion relative-navigation-router-link -->

aio/content/examples/router/src/app/crisis-center/crisis-list/crisis-list.component.ts

@@ -0,0 +1,34 @@
+// #docregion
+import { Component, OnInit }  from '@angular/core';
+import { ActivatedRoute }     from '@angular/router';
+
+import { CrisisService }  from '../crisis.service';
+import { Crisis }         from '../crisis';
+import { Observable }     from 'rxjs';
+import { switchMap }      from 'rxjs/operators';
+
+@Component({
+  selector: 'app-crisis-list',
+  templateUrl: './crisis-list.component.html',
+  styleUrls: ['./crisis-list.component.css']
+})
+export class CrisisListComponent implements OnInit {
+  crises$: Observable<Crisis[]>;
+  selectedId: number;
+
+  // #docregion ctor
+  constructor(
+    private service: CrisisService,
+    private route: ActivatedRoute
+  ) {}
+  // #enddocregion ctor
+
+  ngOnInit() {
+    this.crises$ = this.route.paramMap.pipe(
+      switchMap(params => {
+        this.selectedId = +params.get('id');
+        return this.service.getCrises();
+      })
+    );
+  }
+}

aio/content/examples/router/src/app/crisis-center/crisis.service.ts

@@ -1,27 +1,22 @@
 // #docplaster
-// #docregion , mock-crises
+// #docregion
 import { BehaviorSubject } from 'rxjs';
 import { map } from 'rxjs/operators';
 
-export class Crisis {
-  constructor(public id: number, public name: string) { }
-}
-
-const CRISES = [
-  new Crisis(1, 'Dragon Burning Cities'),
-  new Crisis(2, 'Sky Rains Great White Sharks'),
-  new Crisis(3, 'Giant Asteroid Heading For Earth'),
-  new Crisis(4, 'Procrastinators Meeting Delayed Again'),
-];
-// #enddocregion mock-crises
-
 import { Injectable } from '@angular/core';
+import { MessageService } from '../message.service';
+import { Crisis } from './crisis';
+import { CRISES } from './mock-crises';
 
-@Injectable()
+@Injectable({
+  providedIn: 'root'
+})
 export class CrisisService {
   static nextCrisisId = 100;
   private crises$: BehaviorSubject<Crisis[]> = new BehaviorSubject<Crisis[]>(CRISES);
 
+  constructor(private messageService: MessageService) { }
+
   getCrises() { return this.crises$; }
 
   getCrisis(id: number | string) {
@@ -34,7 +29,7 @@ export class CrisisService {
   addCrisis(name: string) {
     name = name.trim();
     if (name) {
-      let crisis = new Crisis(CrisisService.nextCrisisId++, name);
+      let crisis = { id: CrisisService.nextCrisisId++, name };
       CRISES.push(crisis);
       this.crises$.next(CRISES);
     }

aio/content/examples/router/src/app/crisis-center/crisis.ts

@@ -0,0 +1,4 @@
+export class Crisis {
+  id: number;
+  name: string;
+}