routing

26-Aug-2020/angular-tour-of-heroes/.browserslistrc

+# This file is used by the build system to adjust CSS and JS output to support the specified browsers below.
+# For additional information regarding the format and rule options, please see:
+# https://github.com/browserslist/browserslist#queries
+
+# For the full list of supported browsers by the Angular framework, please see:
+# https://angular.io/guide/browser-support
+
+# You can see what browsers were selected by your queries by running:
+#   npx browserslist
+
+last 1 Chrome version
+last 1 Firefox version
+last 2 Edge major versions
+last 2 Safari major versions
+last 2 iOS major versions
+Firefox ESR
+not IE 9-10 # Angular support for IE 9-10 has been deprecated and will be removed as of Angular v11. To opt-in, remove the 'not' prefix on this line.
+not IE 11 # Angular supports IE 11 only as an opt-in. To opt-in, remove the 'not' prefix on this line.

26-Aug-2020/angular-tour-of-heroes/.editorconfig

+# Editor configuration, see https://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.ts]
+quote_type = single
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

26-Aug-2020/angular-tour-of-heroes/.gitignore

+# See http://help.github.com/ignore-files/ for more about ignoring files.
+
+# compiled output
+/dist
+/tmp
+/out-tsc
+# Only exists if Bazel was run
+/bazel-out
+
+# dependencies
+/node_modules
+
+# profiling files
+chrome-profiler-events*.json
+speed-measure-plugin*.json
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history/*
+
+# misc
+/.sass-cache
+/connect.lock
+/coverage
+/libpeerconnection.log
+npm-debug.log
+yarn-error.log
+testem.log
+/typings
+
+# System Files
+.DS_Store
+Thumbs.db

26-Aug-2020/angular-tour-of-heroes/README.md

+# AngularTourOfHeroes
+
+This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 10.0.2.
+
+## Development server
+
+Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The app will automatically reload if you change any of the source files.
+
+## Code scaffolding
+
+Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.
+
+## Build
+
+Run `ng build` to build the project. The build artifacts will be stored in the `dist/` directory. Use the `--prod` flag for a production build.
+
+## Running unit tests
+
+Run `ng test` to execute the unit tests via [Karma](https://karma-runner.github.io).
+
+## Running end-to-end tests
+
+Run `ng e2e` to execute the end-to-end tests via [Protractor](http://www.protractortest.org/).
+
+## Further help
+
+To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI README](https://github.com/angular/angular-cli/blob/master/README.md).

26-Aug-2020/angular-tour-of-heroes/angular.json

+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "version": 1,
+  "newProjectRoot": "projects",
+  "projects": {
+    "angular-tour-of-heroes": {
+      "projectType": "application",
+      "schematics": {},
+      "root": "",
+      "sourceRoot": "src",
+      "prefix": "app",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:browser",
+          "options": {
+            "outputPath": "dist/angular-tour-of-heroes",
+            "index": "src/index.html",
+            "main": "src/main.ts",
+            "polyfills": "src/polyfills.ts",
+            "tsConfig": "tsconfig.app.json",
+            "aot": true,
+            "assets": [
+              "src/favicon.ico",
+              "src/assets"
+            ],
+            "styles": [
+              "src/styles.css"
+            ],
+            "scripts": []
+          },
+          "configurations": {
+            "production": {
+              "fileReplacements": [
+                {
+                  "replace": "src/environments/environment.ts",
+                  "with": "src/environments/environment.prod.ts"
+                }
+              ],
+              "optimization": true,
+              "outputHashing": "all",
+              "sourceMap": false,
+              "extractCss": true,
+              "namedChunks": false,
+              "extractLicenses": true,
+              "vendorChunk": false,
+              "buildOptimizer": true,
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "2mb",
+                  "maximumError": "5mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "6kb",
+                  "maximumError": "10kb"
+                }
+              ]
+            }
+          }
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "options": {
+            "browserTarget": "angular-tour-of-heroes:build"
+          },
+          "configurations": {
+            "production": {
+              "browserTarget": "angular-tour-of-heroes:build:production"
+            }
+          }
+        },
+        "extract-i18n": {
+          "builder": "@angular-devkit/build-angular:extract-i18n",
+          "options": {
+            "browserTarget": "angular-tour-of-heroes:build"
+          }
+        },
+        "test": {
+          "builder": "@angular-devkit/build-angular:karma",
+          "options": {
+            "main": "src/test.ts",
+            "polyfills": "src/polyfills.ts",
+            "tsConfig": "tsconfig.spec.json",
+            "karmaConfig": "karma.conf.js",
+            "assets": [
+              "src/favicon.ico",
+              "src/assets"
+            ],
+            "styles": [
+              "src/styles.css"
+            ],
+            "scripts": []
+          }
+        },
+        "lint": {
+          "builder": "@angular-devkit/build-angular:tslint",
+          "options": {
+            "tsConfig": [
+              "tsconfig.app.json",
+              "tsconfig.spec.json",
+              "e2e/tsconfig.json"
+            ],
+            "exclude": [
+              "**/node_modules/**"
+            ]
+          }
+        },
+        "e2e": {
+          "builder": "@angular-devkit/build-angular:protractor",
+          "options": {
+            "protractorConfig": "e2e/protractor.conf.js",
+            "devServerTarget": "angular-tour-of-heroes:serve"
+          },
+          "configurations": {
+            "production": {
+              "devServerTarget": "angular-tour-of-heroes:serve:production"
+            }
+          }
+        }
+      }
+    }
+  },
+  "defaultProject": "angular-tour-of-heroes",
+  "cli": {
+    "analytics": "83242130-7562-4e65-96d1-8a5b090ace4c"
+  }
+}
\ No newline at end of file

26-Aug-2020/angular-tour-of-heroes/e2e/protractor.conf.js

+// @ts-check
+// Protractor configuration file, see link for more information
+// https://github.com/angular/protractor/blob/master/lib/config.ts
+
+const { SpecReporter, StacktraceOption } = require('jasmine-spec-reporter');
+
+/**
+ * @type { import("protractor").Config }
+ */
+exports.config = {
+  allScriptsTimeout: 11000,
+  specs: [
+    './src/**/*.e2e-spec.ts'
+  ],
+  capabilities: {
+    browserName: 'chrome'
+  },
+  directConnect: true,
+  baseUrl: 'http://localhost:4200/',
+  framework: 'jasmine',
+  jasmineNodeOpts: {
+    showColors: true,
+    defaultTimeoutInterval: 30000,
+    print: function() {}
+  },
+  onPrepare() {
+    require('ts-node').register({
+      project: require('path').join(__dirname, './tsconfig.json')
+    });
+    jasmine.getEnv().addReporter(new SpecReporter({
+      spec: {
+        displayStacktrace: StacktraceOption.PRETTY
+      }
+    }));
+  }
+};
\ No newline at end of file

26-Aug-2020/angular-tour-of-heroes/e2e/src/app.e2e-spec.ts

+import { AppPage } from './app.po';
+import { browser, logging } from 'protractor';
+
+describe('workspace-project App', () => {
+  let page: AppPage;
+
+  beforeEach(() => {
+    page = new AppPage();
+  });
+
+  it('should display welcome message', () => {
+    page.navigateTo();
+    expect(page.getTitleText()).toEqual('angular-tour-of-heroes app is running!');
+  });
+
+  afterEach(async () => {
+    // Assert that there are no errors emitted from the browser
+    const logs = await browser.manage().logs().get(logging.Type.BROWSER);
+    expect(logs).not.toContain(jasmine.objectContaining({
+      level: logging.Level.SEVERE,
+    } as logging.Entry));
+  });
+});

26-Aug-2020/angular-tour-of-heroes/e2e/src/app.po.ts

+import { browser, by, element } from 'protractor';
+
+export class AppPage {
+  navigateTo(): Promise<unknown> {
+    return browser.get(browser.baseUrl) as Promise<unknown>;
+  }
+
+  getTitleText(): Promise<string> {
+    return element(by.css('app-root .content span')).getText() as Promise<string>;
+  }
+}

26-Aug-2020/angular-tour-of-heroes/e2e/tsconfig.json

+/* To learn more about this file see: https://angular.io/config/tsconfig. */
+{
+  "extends": "../tsconfig.base.json",
+  "compilerOptions": {
+    "outDir": "../out-tsc/e2e",
+    "module": "commonjs",
+    "target": "es2018",
+    "types": [
+      "jasmine",
+      "jasminewd2",
+      "node"
+    ]
+  }
+}

26-Aug-2020/angular-tour-of-heroes/karma.conf.js

+// Karma configuration file, see link for more information
+// https://karma-runner.github.io/1.0/config/configuration-file.html
+
+module.exports = function (config) {
+  config.set({
+    basePath: '',
+    frameworks: ['jasmine', '@angular-devkit/build-angular'],
+    plugins: [
+      require('karma-jasmine'),
+      require('karma-chrome-launcher'),
+      require('karma-jasmine-html-reporter'),
+      require('karma-coverage-istanbul-reporter'),
+      require('@angular-devkit/build-angular/plugins/karma')
+    ],
+    client: {
+      clearContext: false // leave Jasmine Spec Runner output visible in browser
+    },
+    coverageIstanbulReporter: {
+      dir: require('path').join(__dirname, './coverage/angular-tour-of-heroes'),
+      reports: ['html', 'lcovonly', 'text-summary'],
+      fixWebpackSourcePaths: true
+    },
+    reporters: ['progress', 'kjhtml'],
+    port: 9876,
+    colors: true,
+    logLevel: config.LOG_INFO,
+    autoWatch: true,
+    browsers: ['Chrome'],
+    singleRun: false,
+    restartOnFileChange: true
+  });
+};

26-Aug-2020/angular-tour-of-heroes/package.json

+{
+  "name": "angular-tour-of-heroes",
+  "version": "0.0.0",
+  "scripts": {
+    "ng": "ng",
+    "start": "ng serve",
+    "build": "ng build",
+    "test": "ng test",
+    "lint": "ng lint",
+    "e2e": "ng e2e"
+  },
+  "private": true,
+  "dependencies": {
+    "@angular/animations": "~10.0.3",
+    "@angular/common": "~10.0.3",
+    "@angular/compiler": "~10.0.3",
+    "@angular/core": "~10.0.3",
+    "@angular/forms": "~10.0.3",
+    "@angular/platform-browser": "~10.0.3",
+    "@angular/platform-browser-dynamic": "~10.0.3",
+    "@angular/router": "~10.0.3",
+    "rxjs": "~6.5.5",
+    "tslib": "^2.0.0",
+    "zone.js": "~0.10.3"
+  },
+  "devDependencies": {
+    "@angular-devkit/build-angular": "~0.1000.2",
+    "@angular/cli": "~10.0.2",
+    "@angular/compiler-cli": "~10.0.3",
+    "@types/node": "^12.11.1",
+    "@types/jasmine": "~3.5.0",
+    "@types/jasminewd2": "~2.0.3",
+    "codelyzer": "^6.0.0",
+    "jasmine-core": "~3.5.0",
+    "jasmine-spec-reporter": "~5.0.0",
+    "karma": "~5.0.0",
+    "karma-chrome-launcher": "~3.1.0",
+    "karma-coverage-istanbul-reporter": "~3.0.2",
+    "karma-jasmine": "~3.3.0",
+    "karma-jasmine-html-reporter": "^1.5.0",
+    "protractor": "~7.0.0",
+    "ts-node": "~8.3.0",
+    "tslint": "~6.1.0",
+    "typescript": "~3.9.5"
+  }
+}

29-july-2020/angular-tour-of-heroes/src/app/app-routing.module.ts → 26-Aug-2020/angular-tour-of-heroes/src/app-routing.module.ts

 import { NgModule } from '@angular/core';
-import { Routes, RouterModule } from '@angular/router';
+import { RouterModule, Routes } from '@angular/router';
+import { HeroesComponent } from './app/heroes/heroes.component';
 
 
-const routes: Routes = [];
+const routes: Routes = [
+  { path: 'heroes', component: HeroesComponent }
+];
 
 @NgModule({
   imports: [RouterModule.forRoot(routes)],

26-Aug-2020/angular-tour-of-heroes/src/app/app-routing.module.ts

+import { NgModule } from '@angular/core';
+import { RouterModule, Routes } from '@angular/router';
+
+import { DashboardComponent } from './dashboard/dashboard.component';
+import { HeroesComponent } from './heroes/heroes.component';
+import { HeroDetailComponent } from './hero-detail/hero-detail.component';
+
+const routes: Routes = [
+  { path: '', redirectTo: '/dashboard', pathMatch: 'full' },
+  { path: 'dashboard', component: DashboardComponent },
+  { path: 'detail/:id', component: HeroDetailComponent },
+  { path: 'heroes', component: HeroesComponent }
+];
+
+@NgModule({
+  imports: [ RouterModule.forRoot(routes) ],
+  exports: [ RouterModule ]
+})
+export class AppRoutingModule {}

26-Aug-2020/angular-tour-of-heroes/src/app/app.component.css

+/* AppComponent's private CSS styles */
+h1 {
+  font-size: 1.2em;
+  margin-bottom: 0;
+}
+h2 {
+  font-size: 2em;
+  margin-top: 0;
+  padding-top: 0;
+}
+nav a {
+  padding: 5px 10px;
+  text-decoration: none;
+  margin-top: 10px;
+  display: inline-block;
+  background-color: #eee;
+  border-radius: 4px;
+}
+nav a:visited, a:link {
+  color: #334953;
+}
+nav a:hover {
+  color: #039be5;
+  background-color: #cfd8dc;
+}
+nav a.active {
+  color: #039be5;
+}

26-Aug-2020/angular-tour-of-heroes/src/app/app.component.html

+<h1>{{title}}</h1>
+<nav>
+  <a routerLink="/dashboard">Dashboard</a>
+  <a routerLink="/heroes">Heroes</a>
+</nav>
+<router-outlet></router-outlet>
+<app-messages></app-messages>

26-Aug-2020/angular-tour-of-heroes/src/app/app.component.spec.ts

+import { TestBed, async } from '@angular/core/testing';
+import { RouterTestingModule } from '@angular/router/testing';
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      imports: [
+        RouterTestingModule
+      ],
+      declarations: [
+        AppComponent
+      ],
+    }).compileComponents();
+  }));
+
+  it('should create the app', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app).toBeTruthy();
+  });
+
+  it(`should have as title 'angular-tour-of-heroes'`, () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app.title).toEqual('angular-tour-of-heroes');
+  });
+
+  it('should render title', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.nativeElement;
+    expect(compiled.querySelector('.content span').textContent).toContain('angular-tour-of-heroes app is running!');
+  });
+});

26-Aug-2020/angular-tour-of-heroes/src/app/app.component.ts

+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+export class AppComponent {
+  title = 'Tour of Heroes';
+}

26-Aug-2020/angular-tour-of-heroes/src/app/app.module.ts

+import { NgModule } from '@angular/core';
+import { BrowserModule } from '@angular/platform-browser';
+import { FormsModule } from '@angular/forms';
+
+import { AppComponent } from './app.component';
+import { DashboardComponent } from './dashboard/dashboard.component';
+import { HeroDetailComponent } from './hero-detail/hero-detail.component';
+import { HeroesComponent } from './heroes/heroes.component';
+import { MessagesComponent } from './messages/messages.component';
+
+import { AppRoutingModule } from './app-routing.module';
+
+@NgModule({
+  imports: [
+    BrowserModule,
+    FormsModule,
+    AppRoutingModule
+  ],
+  declarations: [
+    AppComponent,
+    DashboardComponent,
+    HeroesComponent,
+    HeroDetailComponent,
+    MessagesComponent
+  ],
+  bootstrap: [ AppComponent ]
+})
+export class AppModule { }

26-Aug-2020/angular-tour-of-heroes/src/app/dashboard/dashboard.component.css

+/* DashboardComponent's private CSS styles */
+[class*='col-'] {
+  float: left;
+  padding-right: 20px;
+  padding-bottom: 20px;
+}
+[class*='col-']:last-of-type {
+  padding-right: 0;
+}
+a {
+  text-decoration: none;
+}
+*, *:after, *:before {
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  box-sizing: border-box;
+}
+h3 {
+  text-align: center;
+  margin-bottom: 0;
+}
+h4 {
+  position: relative;
+}
+.grid {
+  margin: 0;
+}
+.col-1-4 {
+  width: 25%;
+}
+.module {
+  padding: 20px;
+  text-align: center;
+  color: #eee;
+  max-height: 120px;
+  min-width: 120px;
+  background-color: #3f525c;
+  border-radius: 2px;
+}
+.module:hover {
+  background-color: #eee;
+  cursor: pointer;
+  color: #607d8b;
+}
+.grid-pad {
+  padding: 10px 0;
+}
+.grid-pad > [class*='col-']:last-of-type {
+  padding-right: 20px;
+}
+@media (max-width: 600px) {
+  .module {
+    font-size: 10px;
+    max-height: 75px; }
+}
+@media (max-width: 1024px) {
+  .grid {
+    margin: 0;
+  }
+  .module {
+    min-width: 60px;
+  }
+}

26-Aug-2020/angular-tour-of-heroes/src/app/dashboard/dashboard.component.html

+<h3>Top Heroes</h3>
+<div class="grid grid-pad">
+  <a *ngFor="let hero of heroes" class="col-1-4"
+      routerLink="/detail/{{hero.id}}">
+    <div class="module hero">
+      <h4>{{hero.name}}</h4>
+    </div>
+  </a>
+</div>

26-Aug-2020/angular-tour-of-heroes/src/app/dashboard/dashboard.component.spec.ts

+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { DashboardComponent } from './dashboard.component';
+
+describe('DashboardComponent', () => {
+  let component: DashboardComponent;
+  let fixture: ComponentFixture<DashboardComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ DashboardComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(DashboardComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

26-Aug-2020/angular-tour-of-heroes/src/app/dashboard/dashboard.component.ts

+import { Component, OnInit } from '@angular/core';
+import { Hero } from '../hero';
+import { HeroService } from '../hero.service';
+
+@Component({
+  selector: 'app-dashboard',
+  templateUrl: './dashboard.component.html',
+  styleUrls: [ './dashboard.component.css' ]
+})
+export class DashboardComponent implements OnInit {
+  heroes: Hero[] = [];
+
+  constructor(private heroService: HeroService) { }
+
+  ngOnInit() {
+    this.getHeroes();
+  }
+
+  getHeroes(): void {
+    this.heroService.getHeroes()
+      .subscribe(heroes => this.heroes = heroes.slice(1, 5));
+  }
+}

26-Aug-2020/angular-tour-of-heroes/src/app/hero-detail/hero-detail.component.css

+/* HeroDetailComponent's private CSS styles */
+label {
+  display: inline-block;
+  width: 3em;
+  margin: .5em 0;
+  color: #607D8B;
+  font-weight: bold;
+}
+input {
+  height: 2em;
+  font-size: 1em;
+  padding-left: .4em;
+}
+button {
+  margin-top: 20px;
+  font-family: Arial;
+  background-color: #eee;
+  border: none;
+  padding: 5px 10px;
+  border-radius: 4px;
+  cursor: pointer;
+}
+button:hover {
+  background-color: #cfd8dc;
+}
+button:disabled {
+  background-color: #eee;
+  color: #ccc;
+  cursor: auto;
+}

26-Aug-2020/angular-tour-of-heroes/src/app/hero-detail/hero-detail.component.html

+<div *ngIf="hero">
+  <h2>{{hero.name | uppercase}} Details</h2>
+  <div><span>id: </span>{{hero.id}}</div>
+  <div>
+    <label>name:
+      <input [(ngModel)]="hero.name" placeholder="name"/>
+    </label>
+  </div>
+  <button (click)="goBack()">go back</button>
+</div>

26-Aug-2020/angular-tour-of-heroes/src/app/hero-detail/hero-detail.component.spec.ts

+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { HeroDetailComponent } from './hero-detail.component';
+
+describe('HeroDetailComponent', () => {
+  let component: HeroDetailComponent;
+  let fixture: ComponentFixture<HeroDetailComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ HeroDetailComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(HeroDetailComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

26-Aug-2020/angular-tour-of-heroes/src/app/hero-detail/hero-detail.component.ts

+import { Component, OnInit } from '@angular/core';
+import { ActivatedRoute } from '@angular/router';
+import { Location } from '@angular/common';
+
+import { Hero } from '../hero';
+import { HeroService } from '../hero.service';
+
+@Component({
+  selector: 'app-hero-detail',
+  templateUrl: './hero-detail.component.html',
+  styleUrls: [ './hero-detail.component.css' ]
+})
+export class HeroDetailComponent implements OnInit {
+  hero: Hero;
+
+  constructor(
+    private route: ActivatedRoute,
+    private heroService: HeroService,
+    private location: Location
+  ) {}
+
+  ngOnInit(): void {
+    this.getHero();
+  }
+
+  getHero(): void {
+    const id = +this.route.snapshot.paramMap.get('id');
+    this.heroService.getHero(id)
+      .subscribe(hero => this.hero = hero);
+  }
+
+  goBack(): void {
+    this.location.back();
+  }
+}

26-Aug-2020/angular-tour-of-heroes/src/app/hero.service.spec.ts

+import { TestBed } from '@angular/core/testing';
+
+import { HeroService } from './hero.service';
+
+describe('HeroService', () => {
+  let service: HeroService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(HeroService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

26-Aug-2020/angular-tour-of-heroes/src/app/hero.service.ts

+import { Injectable } from '@angular/core';
+
+import { Observable, of } from 'rxjs';
+
+import { Hero } from './hero';
+import { HEROES } from './mock-heroes';
+import { MessageService } from './message.service';
+
+@Injectable({ providedIn: 'root' })
+export class HeroService {
+
+  constructor(private messageService: MessageService) { }
+
+  getHeroes(): Observable<Hero[]> {
+    // TODO: send the message _after_ fetching the heroes
+    this.messageService.add('HeroService: fetched heroes');
+    return of(HEROES);
+  }
+
+  getHero(id: number): Observable<Hero> {
+    // TODO: send the message _after_ fetching the hero
+    this.messageService.add(`HeroService: fetched hero id=${id}`);
+    return of(HEROES.find(hero => hero.id === id));
+  }
+}

26-Aug-2020/angular-tour-of-heroes/src/app/hero.ts

+export interface Hero {
+  id: number;
+  name: string;
+}

26-Aug-2020/angular-tour-of-heroes/src/app/heroes/heroes.component.css

+/* HeroesComponent's private CSS styles */
+.heroes {
+  margin: 0 0 2em 0;
+  list-style-type: none;
+  padding: 0;
+  width: 15em;
+}
+.heroes li {
+  position: relative;
+  cursor: pointer;
+  background-color: #EEE;
+  margin: .5em;
+  padding: .3em 0;
+  height: 1.6em;
+  border-radius: 4px;
+}
+
+.heroes li:hover {
+  color: #607D8B;
+  background-color: #DDD;
+  left: .1em;
+}
+
+.heroes a {
+  color: #333;
+  text-decoration: none;
+  position: relative;
+  display: block;
+  width: 250px;
+}
+
+.heroes a:hover {
+  color:#607D8B;
+}
+
+.heroes .badge {
+  display: inline-block;
+  font-size: small;
+  color: white;
+  padding: 0.8em 0.7em 0 0.7em;
+  background-color:#405061;
+  line-height: 1em;
+  position: relative;
+  left: -1px;
+  top: -4px;
+  height: 1.8em;
+  min-width: 16px;
+  text-align: right;
+  margin-right: .8em;
+  border-radius: 4px 0 0 4px;
+}

26-Aug-2020/angular-tour-of-heroes/src/app/heroes/heroes.component.html

+<h2>My Heroes</h2>
+<ul class="heroes">
+  <li *ngFor="let hero of heroes">
+    <a routerLink="/detail/{{hero.id}}">
+      <span class="badge">{{hero.id}}</span> {{hero.name}}
+    </a>
+  </li>
+</ul>

26-Aug-2020/angular-tour-of-heroes/src/app/heroes/heroes.component.spec.ts

+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { HeroesComponent } from './heroes.component';
+
+describe('HeroesComponent', () => {
+  let component: HeroesComponent;
+  let fixture: ComponentFixture<HeroesComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ HeroesComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(HeroesComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

26-Aug-2020/angular-tour-of-heroes/src/app/heroes/heroes.component.ts

+import { Component, OnInit } from '@angular/core';
+
+import { Hero } from '../hero';
+import { HeroService } from '../hero.service';
+
+@Component({
+  selector: 'app-heroes',
+  templateUrl: './heroes.component.html',
+  styleUrls: ['./heroes.component.css']
+})
+export class HeroesComponent implements OnInit {
+  heroes: Hero[];
+
+  constructor(private heroService: HeroService) { }
+
+  ngOnInit() {
+    this.getHeroes();
+  }
+
+  getHeroes(): void {
+    this.heroService.getHeroes()
+    .subscribe(heroes => this.heroes = heroes);
+  }
+}

26-Aug-2020/angular-tour-of-heroes/src/app/message.service.spec.ts

+import { TestBed } from '@angular/core/testing';
+
+import { MessageService } from './message.service';
+
+describe('MessageService', () => {
+  let service: MessageService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(MessageService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

26-Aug-2020/angular-tour-of-heroes/src/app/message.service.ts

+import { Injectable } from '@angular/core';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class MessageService {
+  messages: string[] = [];
+
+  add(message: string) {
+    this.messages.push(message);
+  }
+
+  clear() {
+    this.messages = [];
+  }
+}

26-Aug-2020/angular-tour-of-heroes/src/app/messages/messages.component.css

+/* MessagesComponent's private CSS styles */
+h2 {
+  color: red;
+  font-family: Arial, Helvetica, sans-serif;
+  font-weight: lighter;
+}
+body {
+  margin: 2em;
+}
+body, input[text], button {
+  color: crimson;
+  font-family: Cambria, Georgia;
+}
+
+button.clear {
+  font-family: Arial;
+  background-color: #eee;
+  border: none;
+  padding: 5px 10px;
+  border-radius: 4px;
+  cursor: pointer;
+  cursor: hand;
+}
+button:hover {
+  background-color: #cfd8dc;
+}
+button:disabled {
+  background-color: #eee;
+  color: #aaa;
+  cursor: auto;
+}
+button.clear {
+  color: #333;
+  margin-bottom: 12px;
+}

26-Aug-2020/angular-tour-of-heroes/src/app/messages/messages.component.html

+<div *ngIf="messageService.messages.length">
+
+  <h2>Messages</h2>
+  <button class="clear"
+          (click)="messageService.clear()">clear</button>
+  <div *ngFor='let message of messageService.messages'> {{message}} </div>
+
+</div>

26-Aug-2020/angular-tour-of-heroes/src/app/messages/messages.component.spec.ts

+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { MessagesComponent } from './messages.component';
+
+describe('MessagesComponent', () => {
+  let component: MessagesComponent;
+  let fixture: ComponentFixture<MessagesComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ MessagesComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(MessagesComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

26-Aug-2020/angular-tour-of-heroes/src/app/messages/messages.component.ts

+import { Component, OnInit } from '@angular/core';
+import { MessageService } from '../message.service';
+
+@Component({
+  selector: 'app-messages',
+  templateUrl: './messages.component.html',
+  styleUrls: ['./messages.component.css']
+})
+export class MessagesComponent implements OnInit {
+
+  constructor(public messageService: MessageService) {}
+
+  ngOnInit() {
+  }
+
+}

26-Aug-2020/angular-tour-of-heroes/src/app/mock-heroes.ts

+import { Hero } from './hero';
+
+export const HEROES: Hero[] = [
+  { id: 11, name: 'Dr Nice' },
+  { id: 12, name: 'Narco' },
+  { id: 13, name: 'Bombasto' },
+  { id: 14, name: 'Celeritas' },
+  { id: 15, name: 'Magneta' },
+  { id: 16, name: 'RubberMan' },
+  { id: 17, name: 'Dynama' },
+  { id: 18, name: 'Dr IQ' },
+  { id: 19, name: 'Magma' },
+  { id: 20, name: 'Tornado' }
+];

26-Aug-2020/angular-tour-of-heroes/src/environments/environment.prod.ts

+export const environment = {
+  production: true
+};

26-Aug-2020/angular-tour-of-heroes/src/environments/environment.ts

+// This file can be replaced during build by using the `fileReplacements` array.
+// `ng build --prod` replaces `environment.ts` with `environment.prod.ts`.
+// The list of file replacements can be found in `angular.json`.
+
+export const environment = {
+  production: false
+};
+
+/*
+ * For easier debugging in development mode, you can import the following file
+ * to ignore zone related error stack frames such as `zone.run`, `zoneDelegate.invokeTask`.
+ *
+ * This import should be commented out in production mode because it will have a negative impact
+ * on performance if an error is thrown.
+ */
+// import 'zone.js/dist/zone-error';  // Included with Angular CLI.

26-Aug-2020/angular-tour-of-heroes/src/index.html

+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>AngularTourOfHeroes</title>
+  <base href="/">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
+</head>
+<body>
+  <app-root></app-root>
+</body>
+</html>

26-Aug-2020/angular-tour-of-heroes/src/main.ts

+import { enableProdMode } from '@angular/core';
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+
+import { AppModule } from './app/app.module';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+  enableProdMode();
+}
+
+platformBrowserDynamic().bootstrapModule(AppModule)
+  .catch(err => console.error(err));

26-Aug-2020/angular-tour-of-heroes/src/polyfills.ts

+/**
+ * This file includes polyfills needed by Angular and is loaded before the app.
+ * You can add your own extra polyfills to this file.
+ *
+ * This file is divided into 2 sections:
+ *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
+ *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
+ *      file.
+ *
+ * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
+ * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
+ * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
+ *
+ * Learn more in https://angular.io/guide/browser-support
+ */
+
+/***************************************************************************************************
+ * BROWSER POLYFILLS
+ */
+
+/** IE10 and IE11 requires the following for NgClass support on SVG elements */
+// import 'classlist.js';  // Run `npm install --save classlist.js`.
+
+/**
+ * Web Animations `@angular/platform-browser/animations`
+ * Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
+ * Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
+ */
+// import 'web-animations-js';  // Run `npm install --save web-animations-js`.
+
+/**
+ * By default, zone.js will patch all possible macroTask and DomEvents
+ * user can disable parts of macroTask/DomEvents patch by setting following flags
+ * because those flags need to be set before `zone.js` being loaded, and webpack
+ * will put import in the top of bundle, so user need to create a separate file
+ * in this directory (for example: zone-flags.ts), and put the following flags
+ * into that file, and then add the following code before importing zone.js.
+ * import './zone-flags';
+ *
+ * The flags allowed in zone-flags.ts are listed here.
+ *
+ * The following flags will work for all browsers.
+ *
+ * (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
+ * (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
+ * (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames
+ *
+ *  in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
+ *  with the following flag, it will bypass `zone.js` patch for IE/Edge
+ *
+ *  (window as any).__Zone_enable_cross_context_check = true;
+ *
+ */
+
+/***************************************************************************************************
+ * Zone JS is required by default for Angular itself.
+ */
+import 'zone.js/dist/zone';  // Included with Angular CLI.
+
+
+/***************************************************************************************************
+ * APPLICATION IMPORTS
+ */

26-Aug-2020/angular-tour-of-heroes/src/styles.css

+/* Application-wide Styles */
+h1 {
+  color: #369;
+  font-family: Arial, Helvetica, sans-serif;
+  font-size: 250%;
+}
+h2, h3 {
+  color: #444;
+  font-family: Arial, Helvetica, sans-serif;
+  font-weight: lighter;
+}
+body {
+  margin: 2em;
+}
+body, input[type="text"], button {
+  color: #333;
+  font-family: Cambria, Georgia;
+}
+/* everywhere else */
+* {
+  font-family: Arial, Helvetica, sans-serif;
+}

26-Aug-2020/angular-tour-of-heroes/src/test.ts

+// This file is required by karma.conf.js and loads recursively all the .spec and framework files
+
+import 'zone.js/dist/zone-testing';
+import { getTestBed } from '@angular/core/testing';
+import {
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting
+} from '@angular/platform-browser-dynamic/testing';
+
+declare const require: {
+  context(path: string, deep?: boolean, filter?: RegExp): {
+    keys(): string[];
+    <T>(id: string): T;
+  };
+};
+
+// First, initialize the Angular testing environment.
+getTestBed().initTestEnvironment(
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting()
+);
+// Then we find all the tests.
+const context = require.context('./', true, /\.spec\.ts$/);
+// And load the modules.
+context.keys().map(context);

26-Aug-2020/angular-tour-of-heroes/tsconfig.app.json

+/* To learn more about this file see: https://angular.io/config/tsconfig. */
+{
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "outDir": "./out-tsc/app",
+    "types": []
+  },
+  "files": [
+    "src/main.ts",
+    "src/polyfills.ts"
+  ],
+  "include": [
+    "src/**/*.d.ts"
+  ]
+}

26-Aug-2020/angular-tour-of-heroes/tsconfig.base.json

+/* To learn more about this file see: https://angular.io/config/tsconfig. */
+{
+  "compileOnSave": false,
+  "compilerOptions": {
+    "baseUrl": "./",
+    "outDir": "./dist/out-tsc",
+    "sourceMap": true,
+    "declaration": false,
+    "downlevelIteration": true,
+    "experimentalDecorators": true,
+    "moduleResolution": "node",
+    "importHelpers": true,
+    "target": "es2015",
+    "module": "es2020",
+    "lib": [
+      "es2018",
+      "dom"
+    ]
+  }
+}

26-Aug-2020/angular-tour-of-heroes/tsconfig.json

+/*
+  This is a "Solution Style" tsconfig.json file, and is used by editors and TypeScript’s language server to improve development experience.
+  It is not intended to be used to perform a compilation.
+
+  To learn more about this file see: https://angular.io/config/solution-tsconfig.
+*/
+{
+  "files": [],
+  "references": [
+    {
+      "path": "./tsconfig.app.json"
+    },
+    {
+      "path": "./tsconfig.spec.json"
+    },
+    {
+      "path": "./e2e/tsconfig.json"
+    }
+]
+}

26-Aug-2020/angular-tour-of-heroes/tsconfig.spec.json

+/* To learn more about this file see: https://angular.io/config/tsconfig. */
+{
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "outDir": "./out-tsc/spec",
+    "types": [
+      "jasmine"
+    ]
+  },
+  "files": [
+    "src/test.ts",
+    "src/polyfills.ts"
+  ],
+  "include": [
+    "src/**/*.spec.ts",
+    "src/**/*.d.ts"
+  ]
+}

26-Aug-2020/angular-tour-of-heroes/tslint.json

+{
+  "extends": "tslint:recommended",
+  "rules": {
+    "align": {
+      "options": [
+        "parameters",
+        "statements"
+      ]
+    },
+    "array-type": false,
+    "arrow-return-shorthand": true,
+    "curly": true,
+    "deprecation": {
+      "severity": "warning"
+    },
+    "component-class-suffix": true,
+    "contextual-lifecycle": true,
+    "directive-class-suffix": true,
+    "directive-selector": [
+      true,
+      "attribute",
+      "app",
+      "camelCase"
+    ],
+    "component-selector": [
+      true,
+      "element",
+      "app",
+      "kebab-case"
+    ],
+    "eofline": true,
+    "import-blacklist": [
+      true,
+      "rxjs/Rx"
+    ],
+    "import-spacing": true,
+    "indent": {
+      "options": [
+        "spaces"
+      ]
+    },
+    "max-classes-per-file": false,
+    "max-line-length": [
+      true,
+      140
+    ],
+    "member-ordering": [
+      true,
+      {
+        "order": [
+          "static-field",
+          "instance-field",
+          "static-method",
+          "instance-method"
+        ]
+      }
+    ],
+    "no-console": [
+      true,
+      "debug",
+      "info",
+      "time",
+      "timeEnd",
+      "trace"
+    ],
+    "no-empty": false,
+    "no-inferrable-types": [
+      true,
+      "ignore-params"
+    ],
+    "no-non-null-assertion": true,
+    "no-redundant-jsdoc": true,
+    "no-switch-case-fall-through": true,
+    "no-var-requires": false,
+    "object-literal-key-quotes": [
+      true,
+      "as-needed"
+    ],
+    "quotemark": [
+      true,
+      "single"
+    ],
+    "semicolon": {
+      "options": [
+        "always"
+      ]
+    },
+    "space-before-function-paren": {
+      "options": {
+        "anonymous": "never",
+        "asyncArrow": "always",
+        "constructor": "never",
+        "method": "never",
+        "named": "never"
+      }
+    },
+    "typedef": [
+      true,
+      "call-signature"
+    ],
+    "typedef-whitespace": {
+      "options": [
+        {
+          "call-signature": "nospace",
+          "index-signature": "nospace",
+          "parameter": "nospace",
+          "property-declaration": "nospace",
+          "variable-declaration": "nospace"
+        },
+        {
+          "call-signature": "onespace",
+          "index-signature": "onespace",
+          "parameter": "onespace",
+          "property-declaration": "onespace",
+          "variable-declaration": "onespace"
+        }
+      ]
+    },
+    "variable-name": {
+      "options": [
+        "ban-keywords",
+        "check-format",
+        "allow-pascal-case"
+      ]
+    },
+    "whitespace": {
+      "options": [
+        "check-branch",
+        "check-decl",
+        "check-operator",
+        "check-separator",
+        "check-type",
+        "check-typecast"
+      ]
+    },
+    "no-conflicting-lifecycle": true,
+    "no-host-metadata-property": true,
+    "no-input-rename": true,
+    "no-inputs-metadata-property": true,
+    "no-output-native": true,
+    "no-output-on-prefix": true,
+    "no-output-rename": true,
+    "no-outputs-metadata-property": true,
+    "template-banana-in-box": true,
+    "template-no-negated-async": true,
+    "use-lifecycle-interface": true,
+    "use-pipe-transform-interface": true
+  },
+  "rulesDirectory": [
+    "codelyzer"
+  ]
+}
\ No newline at end of file