feat(aio): copy example code from angular.io

aio/content/examples/cb-ts-to-js/ts/src/app/app.component.html

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+<a id="toc"></a>
+<h1>{{title}}</h1>
+<a href="#class-metadata">Classes and Class Metadata</a><br>
+<a href="#io-metadata">Input and Output Decorators</a><br>
+<a href="#dependency-injection">Dependency Injection</a><br>
+<a href="#host-metadata">Host Metadata</a><br>
+<a href="#view-child-metadata">View and Child Metadata</a><br>
+
+<hr>
+<h4 id="class-metadata">Classes and Class Metadata</h4>
+<hero-view></hero-view>
+<hero-lifecycle></hero-lifecycle>
+
+<hr>
+<h4 id="io-metadata">Input and Output Metadata</h4>
+<hero-io></hero-io>
+
+<hr>
+<h4 id="dependency-injection">Dependency Injection</h4>
+<hero-di></hero-di>
+<hero-di-inject></hero-di-inject>
+<hero-di-inject-additional></hero-di-inject-additional>
+
+<hr>
+<h4 id="host-metadata">Host Metadata</h4>
+<hero-host></hero-host>
+<hero-host-meta></hero-host-meta>
+
+<hr>
+<h4 id="view-child-metadata">View and Child Metadata</h4>
+<hero-queries></hero-queries>

aio/content/examples/cb-ts-to-js/ts/src/app/app.component.ts

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+import { Component } from '@angular/core';
+
+@Component({
+  moduleId: module.id,
+  selector: 'my-app',
+  templateUrl: './app.component.html',
+  styles: [
+    // See hero-di-inject-additional.component
+    'hero-host, hero-host-meta { border: 1px dashed black; display: block; padding: 4px;}',
+    '.heading {font-style: italic}'
+  ]
+})
+export class AppComponent {
+  title = 'TypeScript';
+}

aio/content/examples/cb-ts-to-js/ts/src/app/app.module.ts

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+/* tslint:disable-next-line:no-unused-variable */
+import { NgModule, NO_ERRORS_SCHEMA } from '@angular/core';
+import { BrowserModule } from '@angular/platform-browser';
+
+import { AppComponent } from './app.component';
+import { ConfirmComponent } from './confirm.component';
+// #docregion appimport
+import { HeroComponent } from './hero.component';
+// #enddocregion appimport
+import { HeroComponent as HeroDIComponent } from './hero-di.component';
+import { HeroComponent as HeroDIInjectComponent } from './hero-di-inject.component';
+import { HeroComponent as HeroDIInjectAdditionalComponent } from './hero-di-inject-additional.component';
+import { HeroHostComponent } from './hero-host.component';
+import { HeroHostMetaComponent } from './hero-host-meta.component';
+import { HeroIOComponent } from './hero-io.component';
+import { HeroComponent as HeroLifecycleComponent } from './hero-lifecycle.component';
+import { HeroQueriesComponent, ViewChildComponent, ContentChildComponent } from './hero-queries.component';
+import { HeroTitleComponent } from './hero-title.component';
+
+import { DataService } from './data.service';
+
+@NgModule({
+  imports: [
+    BrowserModule
+  ],
+  declarations: [
+    AppComponent,
+    ConfirmComponent,
+    HeroComponent,
+    HeroDIComponent,
+    HeroDIInjectComponent,
+    HeroDIInjectAdditionalComponent,
+    HeroHostComponent, HeroHostMetaComponent,
+    HeroIOComponent,
+    HeroLifecycleComponent,
+    HeroQueriesComponent, ViewChildComponent, ContentChildComponent,
+    HeroTitleComponent
+  ],
+  providers: [
+    DataService,
+    { provide: 'heroName', useValue: 'Windstorm' }
+  ],
+  bootstrap: [ AppComponent ],
+
+  // schemas: [ NO_ERRORS_SCHEMA ] // helpful for debugging!
+})
+export class AppModule { }
+
+/* tslint:disable no-unused-variable */
+// #docregion ng2import
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+import {
+  LocationStrategy,
+  HashLocationStrategy
+} from '@angular/common';
+// #enddocregion ng2import

aio/content/examples/cb-ts-to-js/ts/src/app/confirm.component.html

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+<button (click)="onOkClick()">
+  {{okMsg}}
+</button>
+<button (click)="onNotOkClick()">
+  {{notOkMsg}}
+</button>

aio/content/examples/cb-ts-to-js/ts/src/app/confirm.component.ts

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+import { Component, EventEmitter, Input, Output } from '@angular/core';
+
+// #docregion
+@Component({
+  moduleId: module.id,
+  selector: 'app-confirm',
+  templateUrl: './confirm.component.html'
+})
+export class ConfirmComponent {
+  @Input() okMsg = '';
+  @Input('cancelMsg') notOkMsg = '';
+  @Output() ok = new EventEmitter();
+  @Output('cancel') notOk = new EventEmitter();
+
+  onOkClick() {
+    this.ok.emit(true);
+  }
+  onNotOkClick() {
+    this.notOk.emit(true);
+  }
+}
+// #enddocregion

aio/content/examples/cb-ts-to-js/ts/src/app/data.service.ts

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+import { Injectable } from '@angular/core';
+
+@Injectable()
+export class DataService {
+  constructor() { }
+
+  getHeroName() {
+    return 'Windstorm';
+  }
+}

aio/content/examples/cb-ts-to-js/ts/src/app/hero-di-inject-additional.component.ts

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+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'hero-di-inject-additional',
+  template: `<hero-title title="Tour of Heroes"></hero-title>`
+})
+export class HeroComponent { }

aio/content/examples/cb-ts-to-js/ts/src/app/hero-di-inject.component.ts

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+import { Component, Inject } from '@angular/core';
+
+// #docregion
+@Component({
+  selector: 'hero-di-inject',
+  template: `<h1>Hero: {{name}}</h1>`
+})
+export class HeroComponent {
+  constructor(@Inject('heroName') private name: string) { }
+}
+// #enddocregion

aio/content/examples/cb-ts-to-js/ts/src/app/hero-di.component.ts

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+// #docregion
+import { Component }   from '@angular/core';
+import { DataService } from './data.service';
+
+@Component({
+  selector: 'hero-di',
+  template: `<h1>Hero: {{name}}</h1>`
+})
+export class HeroComponent {
+  name = '';
+  constructor(dataService: DataService) {
+    this.name = dataService.getHeroName();
+  }
+}
+// #enddocregion

aio/content/examples/cb-ts-to-js/ts/src/app/hero-host-meta.component.ts

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+import { Component } from '@angular/core';
+
+// #docregion
+@Component({
+  selector: 'hero-host-meta',
+  template: `
+    <h1 [class.active]="active">Hero Host in Metadata</h1>
+    <div>Heading clicks: {{clicks}}</div>
+  `,
+  host: {
+    // HostBindings to the <hero-host-meta> element
+    '[title]': 'title',
+    '[class.heading]': 'headingClass',
+
+    // HostListeners on the entire <hero-host-meta> element
+    '(click)': 'clicked()',
+    '(mouseenter)': 'enter($event)',
+    '(mouseleave)': 'leave($event)'
+  },
+  // Styles within (but excluding) the <hero-host-meta> element
+  styles: ['.active {background-color: coral;}']
+})
+export class HeroHostMetaComponent {
+  title = 'Hero Host in Metadata Tooltip';
+  headingClass = true;
+
+  active = false;
+  clicks = 0;
+
+  clicked() {
+    this.clicks += 1;
+  }
+
+  enter(event: Event) {
+    this.active = true;
+    this.headingClass = false;
+  }
+
+  leave(event: Event) {
+    this.active = false;
+    this.headingClass = true;
+  }
+}
+// #enddocregion

aio/content/examples/cb-ts-to-js/ts/src/app/hero-host.component.ts

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+import { Component, HostBinding, HostListener } from '@angular/core';
+
+// #docregion
+@Component({
+  selector: 'hero-host',
+  template: `
+    <h1 [class.active]="active">Hero Host in Decorators</h1>
+    <div>Heading clicks: {{clicks}}</div>
+  `,
+  // Styles within (but excluding) the <hero-host> element
+  styles: ['.active {background-color: yellow;}']
+})
+export class HeroHostComponent {
+  // HostBindings to the <hero-host> element
+  @HostBinding() title = 'Hero Host in Decorators Tooltip';
+  @HostBinding('class.heading') headingClass = true;
+
+  active = false;
+  clicks = 0;
+
+  // HostListeners on the entire <hero-host> element
+  @HostListener('click')
+  clicked() {
+    this.clicks += 1;
+  }
+
+  @HostListener('mouseenter', ['$event'])
+  enter(event: Event) {
+    this.active = true;
+    this.headingClass = false;
+  }
+
+  @HostListener('mouseleave', ['$event'])
+  leave(event: Event) {
+    this.active = false;
+    this.headingClass = true;
+  }
+}
+// #enddocregion

aio/content/examples/cb-ts-to-js/ts/src/app/hero-io.component.ts

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+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'hero-io',
+  template: `
+    <app-confirm [okMsg]="'OK'"
+                 [cancelMsg]="'Cancel'"
+                 (ok)="onOk()"
+                 (cancel)="onCancel()">
+    </app-confirm>
+    <span *ngIf="okClicked">OK clicked</span>
+    <span *ngIf="cancelClicked">Cancel clicked</span>
+  `
+})
+export class HeroIOComponent {
+  okClicked     = false;
+  cancelClicked = false;
+
+  onOk() {
+    this.okClicked = true;
+  }
+
+  onCancel() {
+    this.cancelClicked = true;
+  }
+}

aio/content/examples/cb-ts-to-js/ts/src/app/hero-lifecycle.component.ts

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+// #docregion
+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'hero-lifecycle',
+  template: `<h1>Hero: {{name}}</h1>`
+})
+export class HeroComponent implements OnInit {
+  name: string;
+  ngOnInit() {
+    // todo: fetch from server async
+    setTimeout(() => this.name = 'Windstorm', 0);
+  }
+}

aio/content/examples/cb-ts-to-js/ts/src/app/hero-queries.component.ts

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+import {
+  Component,
+  ContentChild,
+  Input,
+  QueryList,
+  ViewChildren
+} from '@angular/core';
+
+@Component({
+  selector: 'content-child',
+  template: `
+  <span class="content-child" *ngIf="active">
+    Active
+  </span>`
+})
+export class ContentChildComponent {
+  active = false;
+
+  activate() {
+    this.active = !this.active;
+  }
+}
+
+////////////////////
+
+// #docregion content
+@Component({
+  selector: 'view-child',
+  template: `
+  <h2 [class.active]=active>
+    {{hero.name}}
+    <ng-content></ng-content>
+  </h2>`,
+  styles: ['.active {font-weight: bold; background-color: skyblue;}']
+})
+export class ViewChildComponent {
+  @Input() hero: any;
+  active = false;
+
+  @ContentChild(ContentChildComponent) content: ContentChildComponent;
+
+  activate() {
+    this.active = !this.active;
+    this.content.activate();
+  }
+}
+// #enddocregion content
+
+////////////////////
+
+// #docregion view
+@Component({
+  selector: 'hero-queries',
+  template: `
+    <view-child *ngFor="let hero of heroData" [hero]="hero">
+      <content-child></content-child>
+    </view-child>
+    <button (click)="activate()">{{buttonLabel}} All</button>
+  `
+})
+export class HeroQueriesComponent {
+  active = false;
+  heroData = [
+    {id: 1, name: 'Windstorm'},
+    {id: 2, name: 'LaughingGas'}
+  ];
+
+  @ViewChildren(ViewChildComponent) views: QueryList<ViewChildComponent>;
+
+  activate() {
+    this.active = !this.active;
+    this.views.forEach(
+      view => view.activate()
+    );
+  }
+
+  // #docregion defined-property
+  get buttonLabel() {
+    return this.active ? 'Deactivate' : 'Activate';
+  }
+  // #enddocregion defined-property
+}
+// #enddocregion view

aio/content/examples/cb-ts-to-js/ts/src/app/hero-title.component.html

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+<!-- #docregion -->
+<h1>{{titlePrefix}} {{title}}</h1>
+<button (click)="ok()">OK</button>
+<p>{{ msg }}</p>

aio/content/examples/cb-ts-to-js/ts/src/app/hero-title.component.ts

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+import { Attribute, Component, Inject, Optional } from '@angular/core';
+
+// #docregion
+// #docregion templateUrl
+@Component({
+  moduleId: module.id,
+  selector: 'hero-title',
+  templateUrl: './hero-title.component.html'
+})
+// #enddocregion templateUrl
+export class HeroTitleComponent {
+  msg: string = '';
+  constructor(
+    @Inject('titlePrefix') @Optional() private titlePrefix: string,
+    @Attribute('title') private title: string
+  ) { }
+
+  ok() {
+    this.msg = 'OK!';
+  }
+}
+// #enddocregion

aio/content/examples/cb-ts-to-js/ts/src/app/hero.component.ts

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+// #docregion
+// #docregion metadata
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'hero-view',
+  template: '<h1>{{title}}: {{getName()}}</h1>'
+})
+// #docregion appexport, class
+export class HeroComponent {
+  title = 'Hero Detail';
+  getName() {return 'Windstorm'; }
+}
+// #enddocregion appexport, class
+// #enddocregion metadata

aio/content/examples/cb-ts-to-js/ts/src/index.html

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+<!DOCTYPE html>
+<html>
+  <head>
+    <base href="/">
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link rel="stylesheet" href="styles.css">
+    <title>TypeScript to JavaScript</title>
+
+    <!-- Polyfills -->
+    <script src="node_modules/core-js/client/shim.min.js"></script>
+
+    <script src="node_modules/zone.js/dist/zone.js"></script>
+    <script src="node_modules/systemjs/dist/system.src.js"></script>
+
+    <script src="systemjs.config.js"></script>
+    <script>
+      System.import('main.js').catch(function(err){ console.error(err); });
+    </script>
+  </head>
+
+  <body>
+    <my-app>Loading...</my-app>
+  </body>
+
+</html>

aio/content/examples/cb-ts-to-js/ts/src/main.ts

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+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+import { AppModule } from './app/app.module';
+
+platformBrowserDynamic().bootstrapModule(AppModule);