1384 lines
42 KiB
HTML
1384 lines
42 KiB
HTML
<html lang="en"><head></head><body>
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<form id="mainForm" method="post" action="https://run.stackblitz.com/api/angular/v1?file=src/app/app.component.ts" target="_self"><input type="hidden" name="files[src/app/app-config.ts]" value="/*
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Must put this interface in its own file instead of app.config.ts
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or else TypeScript gives a (bogus) warning:
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WARNING in ./src/app/... .ts
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"export 'AppConfig' was not found in './app.config'
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*/
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export interface AppConfig {
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apiEndpoint: string;
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title: string;
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}
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/app.component.ts]" value="import { Component, Inject } from '@angular/core';
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import { APP_CONFIG, AppConfig } from './app.config';
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import { UserService } from './user.service';
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@Component({
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selector: 'app-root',
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template: `
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<h1>{{title}}</h1>
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<app-car></app-car>
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<app-injectors></app-injectors>
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<app-tests></app-tests>
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<h2>User</h2>
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<p id="user">
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{{userInfo}}
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<button (click)="nextUser()">Next User</button>
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<p>
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<app-heroes id="authorized" *ngIf="isAuthorized"></app-heroes>
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<app-heroes id="unauthorized" *ngIf="!isAuthorized"></app-heroes>
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<app-heroes-tsp id="tspAuthorized" *ngIf="isAuthorized"></app-heroes-tsp>
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<app-providers></app-providers>
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`
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})
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export class AppComponent {
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title: string;
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constructor(
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@Inject(APP_CONFIG) config: AppConfig,
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private userService: UserService) {
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this.title = config.title;
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}
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get isAuthorized() { return this.user.isAuthorized; }
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nextUser() { this.userService.getNewUser(); }
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get user() { return this.userService.user; }
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get userInfo() {
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return `Current user, ${this.user.name}, is ` +
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`${this.isAuthorized ? '' : 'not'} authorized. `;
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}
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}
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/app.config.ts]" value="import { AppConfig } from './app-config';
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export { AppConfig } from './app-config';
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import { InjectionToken } from '@angular/core';
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export const APP_CONFIG = new InjectionToken<AppConfig>('app.config');
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export const HERO_DI_CONFIG: AppConfig = {
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apiEndpoint: 'api.heroes.com',
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title: 'Dependency Injection'
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};
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/app.module.ts]" value="import { NgModule } from '@angular/core';
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import { BrowserModule } from '@angular/platform-browser';
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import { APP_CONFIG, HERO_DI_CONFIG } from './app.config';
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import { AppComponent } from './app.component';
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import { CarComponent } from './car/car.component';
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import { HeroesComponent } from './heroes/heroes.component';
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import { HeroesTspComponent } from './heroes/heroes-tsp.component';
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import { HeroListComponent } from './heroes/hero-list.component';
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import { InjectorComponent } from './injector.component';
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import { Logger } from './logger.service';
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import { TestComponent } from './test.component';
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import { UserService } from './user.service';
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import { ProvidersModule } from './providers.module';
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@NgModule({
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imports: [
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BrowserModule,
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ProvidersModule
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],
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declarations: [
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AppComponent,
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CarComponent,
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HeroesComponent,
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HeroesTspComponent,
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HeroListComponent,
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InjectorComponent,
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TestComponent
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],
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providers: [
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Logger,
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UserService,
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{ provide: APP_CONFIG, useValue: HERO_DI_CONFIG }
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],
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exports: [ CarComponent, HeroesComponent ],
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bootstrap: [ AppComponent ]
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})
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export class AppModule { }
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/car/car-creations.ts]" value="// Examples with car and engine variations
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import { Car, Engine, Tires } from './car';
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///////// example 1 ////////////
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export function simpleCar() {
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// Simple car with 4 cylinders and Flintstone tires.
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const car = new Car(new Engine(), new Tires());
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car.description = 'Simple';
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return car;
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}
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///////// example 2 ////////////
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class Engine2 {
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constructor(public cylinders: number) { }
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}
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export function superCar() {
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// Super car with 12 cylinders and Flintstone tires.
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const bigCylinders = 12;
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const car = new Car(new Engine2(bigCylinders), new Tires());
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car.description = 'Super';
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return car;
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}
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/////////// example 3 //////////
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class MockEngine extends Engine { cylinders = 8; }
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class MockTires extends Tires { make = 'YokoGoodStone'; }
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export function testCar() {
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// Test car with 8 cylinders and YokoGoodStone tires.
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const car = new Car(new MockEngine(), new MockTires());
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car.description = 'Test';
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return car;
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}
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/car/car-factory.ts]" value="import { Engine, Tires, Car } from './car';
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// BAD pattern!
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export class CarFactory {
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createCar() {
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const car = new Car(this.createEngine(), this.createTires());
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car.description = 'Factory';
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return car;
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}
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createEngine() {
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return new Engine();
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}
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createTires() {
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return new Tires();
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}
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}
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/car/car-injector.ts]" value="import { Injector } from '@angular/core';
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import { Car, Engine, Tires } from './car';
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import { Logger } from '../logger.service';
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export function useInjector() {
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let injector: Injector;
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/*
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// Cannot instantiate an Injector like this!
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let injector = new Injector([
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{ provide: Car, deps: [Engine, Tires] },
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{ provide: Engine, deps: [] },
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{ provide: Tires, deps: [] }
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]);
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*/
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injector = Injector.create({
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providers: [
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{ provide: Car, deps: [Engine, Tires] },
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{ provide: Engine, deps: [] },
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{ provide: Tires, deps: [] }
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]
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});
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const car = injector.get(Car);
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car.description = 'Injector';
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injector = Injector.create({
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providers: [{ provide: Logger, deps: [] }]
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});
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const logger = injector.get(Logger);
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logger.log('Injector car.drive() said: ' + car.drive());
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return car;
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}
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/car/car-no-di.ts]" value="// Car without DI
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import { Engine, Tires } from './car';
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export class Car {
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public engine: Engine;
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public tires: Tires;
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public description = 'No DI';
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constructor() {
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this.engine = new Engine();
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this.tires = new Tires();
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}
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// Method using the engine and tires
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drive() {
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return `${this.description} car with ` +
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`${this.engine.cylinders} cylinders and ${this.tires.make} tires.`;
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}
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}
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/car/car.component.ts]" value="import { Component } from '@angular/core';
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import { Car, Engine, Tires } from './car';
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import { Car as CarNoDi } from './car-no-di';
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import { CarFactory } from './car-factory';
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import { testCar,
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simpleCar,
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superCar } from './car-creations';
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import { useInjector } from './car-injector';
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@Component({
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selector: 'app-car',
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template: `
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<h2>Cars</h2>
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<div id="di">{{car.drive()}}</div>
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<div id="nodi">{{noDiCar.drive()}}</div>
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<div id="injector">{{injectorCar.drive()}}</div>
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<div id="factory">{{factoryCar.drive()}}</div>
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<div id="simple">{{simpleCar.drive()}}</div>
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<div id="super">{{superCar.drive()}}</div>
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<div id="test">{{testCar.drive()}}</div>
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`,
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providers: [Car, Engine, Tires]
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})
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export class CarComponent {
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factoryCar = (new CarFactory()).createCar();
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injectorCar = useInjector();
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noDiCar = new CarNoDi();
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simpleCar = simpleCar();
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superCar = superCar();
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testCar = testCar();
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constructor(public car: Car) {}
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}
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/car/car.ts]" value="import { Injectable } from '@angular/core';
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export class Engine {
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public cylinders = 4;
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}
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export class Tires {
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public make = 'Flintstone';
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public model = 'Square';
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}
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@Injectable()
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export class Car {
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public description = 'DI';
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constructor(public engine: Engine, public tires: Tires) { }
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// Method using the engine and tires
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drive() {
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return `${this.description} car with ` +
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`${this.engine.cylinders} cylinders and ${this.tires.make} tires.`;
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}
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}
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/heroes/hero-list.component.ts]" value="/* tslint:disable:one-line */
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import { Component } from '@angular/core';
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import { Hero } from './hero';
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import { HeroService } from './hero.service';
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@Component({
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selector: 'app-hero-list',
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template: `
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<div *ngFor="let hero of heroes">
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{{hero.id}} - {{hero.name}}
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({{hero.isSecret ? 'secret' : 'public'}})
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</div>
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`,
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})
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export class HeroListComponent {
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heroes: Hero[];
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constructor(heroService: HeroService)
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{
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this.heroes = heroService.getHeroes();
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}
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}
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|
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/heroes/hero.module.ts]" value="import { NgModule } from '@angular/core';
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@NgModule({})
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export class HeroModule {
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}
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|
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/heroes/hero.service.provider.ts]" value="/* tslint:disable:one-line */
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import { HeroService } from './hero.service';
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import { Logger } from '../logger.service';
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import { UserService } from '../user.service';
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const heroServiceFactory = (logger: Logger, userService: UserService) => {
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return new HeroService(logger, userService.user.isAuthorized);
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};
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export let heroServiceProvider =
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{ provide: HeroService,
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useFactory: heroServiceFactory,
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deps: [Logger, UserService]
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};
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|
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/heroes/hero.service.ts]" value="import { Injectable } from '@angular/core';
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import { HEROES } from './mock-heroes';
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import { Logger } from '../logger.service';
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import { UserService } from '../user.service';
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@Injectable({
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providedIn: 'root',
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useFactory: (logger: Logger, userService: UserService) =>
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new HeroService(logger, userService.user.isAuthorized),
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deps: [Logger, UserService],
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})
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export class HeroService {
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constructor(
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private logger: Logger,
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private isAuthorized: boolean) { }
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getHeroes() {
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const auth = this.isAuthorized ? 'authorized ' : 'unauthorized';
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this.logger.log(`Getting heroes for ${auth} user.`);
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return HEROES.filter(hero => this.isAuthorized || !hero.isSecret);
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}
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}
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/*
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Copyright Google LLC. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/heroes/hero.ts]" value="export interface Hero {
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id: number;
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name: string;
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isSecret: boolean;
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}
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|
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/*
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Copyright Google LLC. All Rights Reserved.
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|
Use of this source code is governed by an MIT-style license that
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|
can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/heroes/heroes-tsp.component.ts]" value="import { Component } from '@angular/core';
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/**
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* A version of `HeroesComponent` that does not provide the `HeroService` (and thus relies on its
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* `Injectable`-declared provider) in order to function.
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*
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* TSP stands for Tree-Shakeable Provider.
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*/
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@Component({
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selector: 'app-heroes-tsp',
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template: `
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<h2>Heroes</h2>
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<app-hero-list></app-hero-list>
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`
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})
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export class HeroesTspComponent { }
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|
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/*
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|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
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*/"><input type="hidden" name="files[src/app/heroes/heroes.component.ts]" value="import { Component } from '@angular/core';
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import { heroServiceProvider } from './hero.service.provider';
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@Component({
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selector: 'app-heroes',
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providers: [ heroServiceProvider ],
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template: `
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<h2>Heroes</h2>
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<app-hero-list></app-hero-list>
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`
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})
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export class HeroesComponent { }
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|
|
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|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/heroes/mock-heroes.ts]" value="import { Hero } from './hero';
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export const HEROES: Hero[] = [
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{ id: 11, isSecret: false, name: 'Dr Nice' },
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{ id: 12, isSecret: false, name: 'Narco' },
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{ id: 13, isSecret: false, name: 'Bombasto' },
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{ id: 14, isSecret: false, name: 'Celeritas' },
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{ id: 15, isSecret: false, name: 'Magneta' },
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{ id: 16, isSecret: false, name: 'RubberMan' },
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{ id: 17, isSecret: false, name: 'Dynama' },
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{ id: 18, isSecret: true, name: 'Dr IQ' },
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{ id: 19, isSecret: true, name: 'Magma' },
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{ id: 20, isSecret: true, name: 'Tornado' }
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];
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|
|
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|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/injector.component.ts]" value="import { Component, Injector, OnInit } from '@angular/core';
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import { Car, Engine, Tires } from './car/car';
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import { Hero } from './heroes/hero';
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import { HeroService } from './heroes/hero.service';
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import { heroServiceProvider } from './heroes/hero.service.provider';
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import { Logger } from './logger.service';
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@Component({
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selector: 'app-injectors',
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template: `
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<h2>Other Injections</h2>
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|
<div id="car">{{car.drive()}}</div>
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<div id="hero">{{hero.name}}</div>
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<div id="rodent">{{rodent}}</div>
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`,
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providers: [Car, Engine, Tires, heroServiceProvider, Logger]
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})
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export class InjectorComponent implements OnInit {
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car: Car;
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heroService: HeroService;
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hero: Hero;
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constructor(private injector: Injector) { }
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ngOnInit() {
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this.car = this.injector.get(Car);
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this.heroService = this.injector.get(HeroService);
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this.hero = this.heroService.getHeroes()[0];
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}
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get rodent() {
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const rousDontExist = `R.O.U.S.'s? I don't think they exist!`;
|
|
return this.injector.get(ROUS, rousDontExist);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* R.O.U.S. - Rodents Of Unusual Size
|
|
* // https://www.youtube.com/watch?v=BOv5ZjAOpC8
|
|
*/
|
|
class ROUS { }
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/logger.service.ts]" value="import { Injectable } from '@angular/core';
|
|
|
|
@Injectable({
|
|
providedIn: 'root'
|
|
})
|
|
export class Logger {
|
|
logs: string[] = []; // capture logs for testing
|
|
|
|
log(message: string) {
|
|
this.logs.push(message);
|
|
console.log(message);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/providers.component.ts]" value="/*
|
|
* A collection of demo components showing different ways to provide services
|
|
* in @Component metadata
|
|
*/
|
|
import { Component, Inject, Injectable, OnInit } from '@angular/core';
|
|
|
|
import {
|
|
APP_CONFIG,
|
|
AppConfig,
|
|
HERO_DI_CONFIG } from './app.config';
|
|
|
|
import { HeroService } from './heroes/hero.service';
|
|
import { heroServiceProvider } from './heroes/hero.service.provider';
|
|
import { Logger } from './logger.service';
|
|
import { UserService } from './user.service';
|
|
|
|
const template = '{{log}}';
|
|
|
|
@Component({
|
|
selector: 'provider-1',
|
|
template,
|
|
providers: [Logger]
|
|
})
|
|
export class Provider1Component {
|
|
log: string;
|
|
constructor(logger: Logger) {
|
|
logger.log('Hello from logger provided with Logger class');
|
|
this.log = logger.logs[0];
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////
|
|
|
|
@Component({
|
|
selector: 'provider-3',
|
|
template,
|
|
providers:
|
|
[{ provide: Logger, useClass: Logger }]
|
|
})
|
|
export class Provider3Component {
|
|
log: string;
|
|
constructor(logger: Logger) {
|
|
logger.log('Hello from logger provided with useClass:Logger');
|
|
this.log = logger.logs[0];
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////
|
|
export class BetterLogger extends Logger {}
|
|
|
|
@Component({
|
|
selector: 'provider-4',
|
|
template,
|
|
providers:
|
|
[{ provide: Logger, useClass: BetterLogger }]
|
|
})
|
|
export class Provider4Component {
|
|
log: string;
|
|
constructor(logger: Logger) {
|
|
logger.log('Hello from logger provided with useClass:BetterLogger');
|
|
this.log = logger.logs[0];
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////
|
|
|
|
@Injectable()
|
|
export class EvenBetterLogger extends Logger {
|
|
constructor(private userService: UserService) { super(); }
|
|
|
|
log(message: string) {
|
|
const name = this.userService.user.name;
|
|
super.log(`Message to ${name}: ${message}`);
|
|
}
|
|
}
|
|
|
|
@Component({
|
|
selector: 'provider-5',
|
|
template,
|
|
providers:
|
|
[ UserService,
|
|
{ provide: Logger, useClass: EvenBetterLogger }]
|
|
})
|
|
export class Provider5Component {
|
|
log: string;
|
|
constructor(logger: Logger) {
|
|
logger.log('Hello from EvenBetterlogger');
|
|
this.log = logger.logs[0];
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////
|
|
|
|
export class NewLogger extends Logger {}
|
|
|
|
export class OldLogger {
|
|
logs: string[] = [];
|
|
log(message: string) {
|
|
throw new Error('Should not call the old logger!');
|
|
}
|
|
}
|
|
|
|
@Component({
|
|
selector: 'provider-6a',
|
|
template,
|
|
providers:
|
|
[ NewLogger,
|
|
// Not aliased! Creates two instances of `NewLogger`
|
|
{ provide: OldLogger, useClass: NewLogger}]
|
|
})
|
|
export class Provider6aComponent {
|
|
log: string;
|
|
constructor(newLogger: NewLogger, oldLogger: OldLogger) {
|
|
if (newLogger === oldLogger) {
|
|
throw new Error('expected the two loggers to be different instances');
|
|
}
|
|
oldLogger.log('Hello OldLogger (but we want NewLogger)');
|
|
// The newLogger wasn't called so no logs[]
|
|
// display the logs of the oldLogger.
|
|
this.log = newLogger.logs[0] || oldLogger.logs[0];
|
|
}
|
|
}
|
|
|
|
@Component({
|
|
selector: 'provider-6b',
|
|
template,
|
|
providers:
|
|
[ NewLogger,
|
|
// Alias OldLogger w/ reference to NewLogger
|
|
{ provide: OldLogger, useExisting: NewLogger}]
|
|
})
|
|
export class Provider6bComponent {
|
|
log: string;
|
|
constructor(newLogger: NewLogger, oldLogger: OldLogger) {
|
|
if (newLogger !== oldLogger) {
|
|
throw new Error('expected the two loggers to be the same instance');
|
|
}
|
|
oldLogger.log('Hello from NewLogger (via aliased OldLogger)');
|
|
this.log = newLogger.logs[0];
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////
|
|
|
|
// An object in the shape of the logger service
|
|
function silentLoggerFn() {}
|
|
|
|
export const SilentLogger = {
|
|
logs: ['Silent logger says "Shhhhh!". Provided via "useValue"'],
|
|
log: silentLoggerFn
|
|
};
|
|
|
|
@Component({
|
|
selector: 'provider-7',
|
|
template,
|
|
providers:
|
|
[{ provide: Logger, useValue: SilentLogger }]
|
|
})
|
|
export class Provider7Component {
|
|
log: string;
|
|
constructor(logger: Logger) {
|
|
logger.log('Hello from logger provided with useValue');
|
|
this.log = logger.logs[0];
|
|
}
|
|
}
|
|
|
|
/////////////////
|
|
|
|
@Component({
|
|
selector: 'provider-8',
|
|
template,
|
|
providers: [heroServiceProvider, Logger, UserService]
|
|
})
|
|
export class Provider8Component {
|
|
// must be true else this component would have blown up at runtime
|
|
log = 'Hero service injected successfully via heroServiceProvider';
|
|
|
|
constructor(heroService: HeroService) { }
|
|
}
|
|
|
|
/////////////////
|
|
|
|
@Component({
|
|
selector: 'provider-9',
|
|
template,
|
|
/*
|
|
// Can't use interface as provider token
|
|
[{ provide: AppConfig, useValue: HERO_DI_CONFIG })]
|
|
*/
|
|
providers: [{ provide: APP_CONFIG, useValue: HERO_DI_CONFIG }]
|
|
})
|
|
export class Provider9Component implements OnInit {
|
|
log: string;
|
|
/*
|
|
// Can't inject using the interface as the parameter type
|
|
constructor(private config: AppConfig){ }
|
|
*/
|
|
constructor(@Inject(APP_CONFIG) private config: AppConfig) { }
|
|
|
|
ngOnInit() {
|
|
this.log = 'APP_CONFIG Application title is ' + this.config.title;
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////
|
|
// Sample providers 1 to 7 illustrate a required logger dependency.
|
|
// Optional logger, can be null
|
|
import { Optional } from '@angular/core';
|
|
|
|
const someMessage = 'Hello from the injected logger';
|
|
|
|
@Component({
|
|
selector: 'provider-10',
|
|
template,
|
|
providers: [{ provide: Logger, useValue: null }]
|
|
})
|
|
export class Provider10Component implements OnInit {
|
|
log: string;
|
|
constructor(@Optional() private logger?: Logger) {
|
|
if (this.logger) {
|
|
this.logger.log(someMessage);
|
|
}
|
|
}
|
|
|
|
ngOnInit() {
|
|
this.log = this.logger ? this.logger.logs[0] : 'Optional logger was not available';
|
|
}
|
|
}
|
|
|
|
/////////////////
|
|
|
|
@Component({
|
|
selector: 'app-providers',
|
|
template: `
|
|
<h2>Provider variations</h2>
|
|
<div id="p1"><provider-1></provider-1></div>
|
|
<div id="p3"><provider-3></provider-3></div>
|
|
<div id="p4"><provider-4></provider-4></div>
|
|
<div id="p5"><provider-5></provider-5></div>
|
|
<div id="p6a"><provider-6a></provider-6a></div>
|
|
<div id="p6b"><provider-6b></provider-6b></div>
|
|
<div id="p7"><provider-7></provider-7></div>
|
|
<div id="p8"><provider-8></provider-8></div>
|
|
<div id="p9"><provider-9></provider-9></div>
|
|
<div id="p10"><provider-10></provider-10></div>
|
|
`
|
|
})
|
|
export class ProvidersComponent { }
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/providers.module.ts]" value="import { NgModule } from '@angular/core';
|
|
|
|
import {
|
|
Provider1Component,
|
|
Provider3Component,
|
|
Provider4Component,
|
|
Provider5Component,
|
|
Provider6aComponent,
|
|
Provider6bComponent,
|
|
Provider7Component,
|
|
Provider8Component,
|
|
Provider9Component,
|
|
Provider10Component,
|
|
ProvidersComponent,
|
|
} from './providers.component';
|
|
|
|
@NgModule({
|
|
declarations: [
|
|
Provider1Component,
|
|
Provider3Component,
|
|
Provider4Component,
|
|
Provider5Component,
|
|
Provider6aComponent,
|
|
Provider6bComponent,
|
|
Provider7Component,
|
|
Provider8Component,
|
|
Provider9Component,
|
|
Provider10Component,
|
|
ProvidersComponent,
|
|
],
|
|
exports: [ ProvidersComponent ]
|
|
})
|
|
export class ProvidersModule {}
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/test.component.ts]" value="/* tslint:disable */
|
|
// Simulate a simple test
|
|
// Reader should look to the testing chapter for the real thing
|
|
|
|
import { Component } from '@angular/core';
|
|
|
|
import { Hero } from './heroes/hero';
|
|
import { HeroService } from './heroes/hero.service';
|
|
import { HeroListComponent } from './heroes/hero-list.component';
|
|
|
|
@Component({
|
|
selector: 'app-tests',
|
|
template: `
|
|
<h2>Tests</h2>
|
|
<p id="tests">Tests {{results.pass}}: {{results.message}}</p>
|
|
`
|
|
})
|
|
export class TestComponent {
|
|
results = runTests();
|
|
}
|
|
|
|
/////////////////////////////////////
|
|
function runTests() {
|
|
|
|
const expectedHeroes = [{name: 'A'}, {name: 'B'}]
|
|
const mockService = <HeroService> {getHeroes: () => expectedHeroes }
|
|
|
|
it('should have heroes when HeroListComponent created', () => {
|
|
// Pass the mock to the constructor as the Angular injector would
|
|
const component = new HeroListComponent(mockService);
|
|
expect(component.heroes.length).toEqual(expectedHeroes.length);
|
|
});
|
|
|
|
return testResults;
|
|
}
|
|
|
|
//////////////////////////////////
|
|
// Fake Jasmine infrastructure
|
|
var testName: string;
|
|
var testResults: {pass: string; message: string};
|
|
|
|
function expect(actual: any) {
|
|
return {
|
|
toEqual: (expected: any) => {
|
|
testResults = actual === expected ?
|
|
{pass: 'passed', message: testName} :
|
|
{pass: 'failed', message: `${testName}; expected ${actual} to equal ${expected}.`};
|
|
}
|
|
};
|
|
}
|
|
|
|
function it(label: string, test: () => void) {
|
|
testName = label;
|
|
test();
|
|
}
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/tree-shaking/app.module.ts]" value="import { NgModule } from '@angular/core';
|
|
import { BrowserModule } from '@angular/platform-browser';
|
|
import { RouterModule } from '@angular/router';
|
|
import { ServiceModule } from './service-and-module';
|
|
|
|
@NgModule({
|
|
imports: [
|
|
BrowserModule,
|
|
RouterModule.forRoot([]),
|
|
ServiceModule,
|
|
],
|
|
})
|
|
export class AppModule {
|
|
}
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/tree-shaking/service-and-module.ts]" value="import { Injectable, NgModule } from '@angular/core';
|
|
|
|
@Injectable()
|
|
export class Service {
|
|
doSomething(): void {
|
|
}
|
|
}
|
|
|
|
@NgModule({
|
|
providers: [Service],
|
|
})
|
|
export class ServiceModule {
|
|
}
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/tree-shaking/service.ts]" value="import { Injectable } from '@angular/core';
|
|
|
|
@Injectable({
|
|
providedIn: 'root',
|
|
})
|
|
export class Service {
|
|
}
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/app/user.service.ts]" value="import { Injectable } from '@angular/core';
|
|
|
|
export class User {
|
|
constructor(
|
|
public name: string,
|
|
public isAuthorized = false) { }
|
|
}
|
|
|
|
// TODO: get the user; don't 'new' it.
|
|
const alice = new User('Alice', true);
|
|
const bob = new User('Bob', false);
|
|
|
|
@Injectable({
|
|
providedIn: 'root'
|
|
})
|
|
export class UserService {
|
|
user = bob; // initial user is Bob
|
|
|
|
// swap users
|
|
getNewUser() {
|
|
return this.user = this.user === bob ? alice : bob;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/environments/environment.prod.ts]" value="export const environment = {
|
|
production: true
|
|
};
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/environments/environment.ts]" value="// 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/plugins/zone-error'; // Included with Angular CLI.
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/main.ts]" value="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);
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/polyfills.ts]" value="/**
|
|
* 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
|
|
*/
|
|
|
|
/** 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
|
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* specified eventNames
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*
|
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* 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;
|
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*
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|
*/
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/***************************************************************************************************
|
|
* Zone JS is required by default for Angular itself.
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|
*/
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import 'zone.js'; // Included with Angular CLI.
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/***************************************************************************************************
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* APPLICATION IMPORTS
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*/
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/*
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Copyright Google LLC. All Rights Reserved.
|
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Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
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*/"><input type="hidden" name="files[src/styles.css]" value="/* Global Styles */
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* {
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font-family: Arial, Helvetica, sans-serif;
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}
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h1 {
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color: #264D73;
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font-size: 2.5rem;
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}
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h2, h3 {
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color: #444;
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font-weight: lighter;
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}
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h3 {
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font-size: 1.3rem;
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}
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body {
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padding: .5rem;
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max-width: 1000px;
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margin: auto;
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@media (min-width: 600px) {
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body {
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padding: 2rem;
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}
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}
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body, input[text] {
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color: #333;
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font-family: Cambria, Georgia, serif;
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}
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a {
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cursor: pointer;
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}
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button {
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background-color: #eee;
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border: none;
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border-radius: 4px;
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cursor: pointer;
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color: black;
|
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font-size: 1.2rem;
|
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padding: 1rem;
|
|
margin-right: 1rem;
|
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margin-bottom: 1rem;
|
|
}
|
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button:hover {
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background-color: black;
|
|
color: white;
|
|
}
|
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button:disabled {
|
|
background-color: #eee;
|
|
color: #aaa;
|
|
cursor: auto;
|
|
}
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|
|
|
/* Navigation link styles */
|
|
nav a {
|
|
padding: 5px 10px;
|
|
text-decoration: none;
|
|
margin-right: 10px;
|
|
margin-top: 10px;
|
|
display: inline-block;
|
|
background-color: #e8e8e8;
|
|
color: #3d3d3d;
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|
border-radius: 4px;
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}
|
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nav a:hover {
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|
color: white;
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|
background-color: #42545C;
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|
}
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nav a.active {
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|
background-color: black;
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|
color: white;
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|
}
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hr {
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|
margin: 1.5rem 0;
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|
}
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|
input[type="text"] {
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|
box-sizing: border-box;
|
|
width: 100%;
|
|
padding: .5rem;
|
|
}
|
|
|
|
|
|
/*
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
|
|
can be found in the LICENSE file at https://angular.io/license
|
|
*/"><input type="hidden" name="files[src/index.html]" value="<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>Dependency Injection</title>
|
|
<base href="/">
|
|
<meta charset="UTF-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
</head>
|
|
|
|
<body>
|
|
<app-root></app-root>
|
|
</body>
|
|
|
|
</html>
|
|
|
|
|
|
<!--
|
|
Copyright Google LLC. All Rights Reserved.
|
|
Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at https://angular.io/license
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"type": "anyComponentStyle",
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"extract-i18n": {
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"builder": "@angular-devkit/build-angular:extract-i18n",
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"browserTarget": "angular.io-example:build"
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"builder": "@angular-devkit/build-angular:karma",
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"tsConfig": "tsconfig.spec.json",
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"src/favicon.ico",
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"src/assets"
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],
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"styles": [
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|
"src/styles.css"
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"scripts": []
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}
|
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"lint": {
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|
"builder": "@angular-devkit/build-angular:tslint",
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"tsconfig.app.json",
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"e2e/tsconfig.json"
|
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"exclude": [
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"**/node_modules/**"
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"builder": "@angular-devkit/build-angular:protractor",
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"strictInjectionParameters": true,
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