Initial commit

.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

.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

.gitignore

+# See http://help.github.com/ignore-files/ for more about ignoring files.
+
+# Compiled output
+/dist
+/tmp
+/out-tsc
+/bazel-out
+
+# Node
+/node_modules
+npm-debug.log
+yarn-error.log
+
+# IDEs and editors
+.idea/
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# Visual Studio Code
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history/*
+
+# Miscellaneous
+/.angular/cache
+.sass-cache/
+/connect.lock
+/coverage
+/libpeerconnection.log
+testem.log
+/typings
+
+# System files
+.DS_Store
+Thumbs.db

README.md

+# FirstApp
+
+This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 14.2.7.
+
+## Development server
+
+Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The application 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.
+
+## 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 a platform of your choice. To use this command, you need to first add a package that implements end-to-end testing capabilities.
+
+## Further help
+
+To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI Overview and Command Reference](https://angular.io/cli) page.

angular.json

+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "version": 1,
+  "newProjectRoot": "projects",
+  "projects": {
+    "first-app": {
+      "projectType": "application",
+      "schematics": {},
+      "root": "",
+      "sourceRoot": "src",
+      "prefix": "app",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:browser",
+          "options": {
+            "outputPath": "dist/first-app",
+            "index": "src/index.html",
+            "main": "src/main.ts",
+            "polyfills": "src/polyfills.ts",
+            "tsConfig": "tsconfig.app.json",
+            "assets": [
+              "src/favicon.ico",
+              "src/assets"
+            ],
+            "styles": [
+              "node_modules/bootstrap/dist/css/bootstrap.min.css",
+              "src/styles.css"
+            ],
+            "scripts": []
+          },
+          "configurations": {
+            "production": {
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "2mb",
+                  "maximumError": "5mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "6kb",
+                  "maximumError": "10kb"
+                }
+              ],
+              "fileReplacements": [
+                {
+                  "replace": "src/environments/environment.ts",
+                  "with": "src/environments/environment.prod.ts"
+                }
+              ],
+              "outputHashing": "all"
+            },
+            "development": {
+              "buildOptimizer": false,
+              "optimization": false,
+              "vendorChunk": true,
+              "extractLicenses": false,
+              "sourceMap": true,
+              "namedChunks": true
+            }
+          },
+          "defaultConfiguration": "production"
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "configurations": {
+            "production": {
+              "browserTarget": "first-app:build:production"
+            },
+            "development": {
+              "browserTarget": "first-app:build:development"
+            }
+          },
+          "defaultConfiguration": "development"
+        },
+        "extract-i18n": {
+          "builder": "@angular-devkit/build-angular:extract-i18n",
+          "options": {
+            "browserTarget": "first-app: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": []
+          }
+        }
+      }
+    }
+  }
+}

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'),
+      require('@angular-devkit/build-angular/plugins/karma')
+    ],
+    client: {
+      jasmine: {
+        // you can add configuration options for Jasmine here
+        // the possible options are listed at https://jasmine.github.io/api/edge/Configuration.html
+        // for example, you can disable the random execution with `random: false`
+        // or set a specific seed with `seed: 4321`
+      },
+      clearContext: false // leave Jasmine Spec Runner output visible in browser
+    },
+    jasmineHtmlReporter: {
+      suppressAll: true // removes the duplicated traces
+    },
+    coverageReporter: {
+      dir: require('path').join(__dirname, './coverage/first-app'),
+      subdir: '.',
+      reporters: [
+        { type: 'html' },
+        { type: 'text-summary' }
+      ]
+    },
+    reporters: ['progress', 'kjhtml'],
+    port: 9876,
+    colors: true,
+    logLevel: config.LOG_INFO,
+    autoWatch: true,
+    browsers: ['Chrome'],
+    singleRun: false,
+    restartOnFileChange: true
+  });
+};

package.json

+{
+  "name": "first-app",
+  "version": "0.0.0",
+  "scripts": {
+    "ng": "ng",
+    "start": "ng serve",
+    "build": "ng build",
+    "watch": "ng build --watch --configuration development",
+    "test": "ng test"
+  },
+  "private": true,
+  "dependencies": {
+    "@angular/animations": "^14.2.0",
+    "@angular/common": "^14.2.0",
+    "@angular/compiler": "^14.2.0",
+    "@angular/core": "^14.2.0",
+    "@angular/forms": "^14.2.0",
+    "@angular/platform-browser": "^14.2.0",
+    "@angular/platform-browser-dynamic": "^14.2.0",
+    "@angular/router": "^14.2.0",
+    "rxjs": "^6.6.3",
+    "rxjs-compat": "^6.0.0",
+    "tslib": "^2.3.0",
+    "zone.js": "~0.11.4",
+    "bootstrap": "^3.0.0"
+  },
+  "devDependencies": {
+    "@angular-devkit/build-angular": "^14.2.7",
+    "@angular/cli": "~14.2.7",
+    "@angular/compiler-cli": "^14.2.0",
+    "@types/jasmine": "~4.0.0",
+    "jasmine-core": "~4.3.0",
+    "karma": "~6.4.0",
+    "karma-chrome-launcher": "~3.1.0",
+    "karma-coverage": "~2.2.0",
+    "karma-jasmine": "~5.1.0",
+    "karma-jasmine-html-reporter": "~2.0.0",
+    "typescript": "~4.7.2"
+  }
+}

src/app/app.component.html

+<app-header (featureSelected)="onNavigate($event)"></app-header>
+<div class="container">
+  <div class="row">
+    <div class="col-md-12">
+      <app-recipes *ngIf="loadedFeature === 'recipe'"></app-recipes>
+      <app-shopping-list *ngIf="loadedFeature !== 'recipe'"></app-shopping-list>
+    </div>
+  </div>
+</div>

src/app/app.component.spec.ts

+import { TestBed, async } from '@angular/core/testing';
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      declarations: [
+        AppComponent
+      ],
+    });
+    TestBed.compileComponents();
+  });
+
+  it('should create the app', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app).toBeTruthy();
+  }));
+
+  it(`should have as title 'app works!'`, async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app.title).toEqual('app works!');
+  }));
+
+  it('should render title in a h1 tag', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.debugElement.nativeElement;
+    expect(compiled.querySelector('h1').textContent).toContain('app works!');
+  }));
+});

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 {
+  loadedFeature = 'recipe';
+
+  onNavigate(feature: string) {
+    this.loadedFeature = feature;
+  }
+}

src/app/app.module.ts

+import { BrowserModule } from '@angular/platform-browser';
+import { NgModule } from '@angular/core';
+import { FormsModule } from '@angular/forms';
+
+
+import { AppComponent } from './app.component';
+import { HeaderComponent } from './header/header.component';
+import { RecipesComponent } from './recipes/recipes.component';
+import { RecipeListComponent } from './recipes/recipe-list/recipe-list.component';
+import { RecipeDetailComponent } from './recipes/recipe-detail/recipe-detail.component';
+import { RecipeItemComponent } from './recipes/recipe-list/recipe-item/recipe-item.component';
+import { ShoppingListComponent } from './shopping-list/shopping-list.component';
+import { ShoppingEditComponent } from './shopping-list/shopping-edit/shopping-edit.component';
+import { DropdownDirective } from './shared/dropdown.directive';
+
+@NgModule({
+  declarations: [
+    AppComponent,
+    HeaderComponent,
+    RecipesComponent,
+    RecipeListComponent,
+    RecipeDetailComponent,
+    RecipeItemComponent,
+    ShoppingListComponent,
+    ShoppingEditComponent,
+    DropdownDirective
+  ],
+  imports: [
+    BrowserModule,
+    FormsModule,
+  ],
+  providers: [],
+  bootstrap: [AppComponent]
+})
+export class AppModule { }

src/app/header/header.component.html

+<nav class="navbar navbar-default">
+  <div class="container-fluid">
+    <div class="navbar-header">
+      <a href="#" class="navbar-brand">Recipe Book</a>
+    </div>
+
+    <div class="collapse navbar-collapse">
+      <ul class="nav navbar-nav">
+        <li><a href="#" (click)="onSelect('recipe')">Recipes</a></li>
+        <li><a href="#" (click)="onSelect('shopping-list')">Shopping List</a></li>
+      </ul>
+      <ul class="nav navbar-nav navbar-right">
+        <li class="dropdown" appDropdown>
+          <a href="#" class="dropdown-toggle" role="button">Manage <span class="caret"></span></a>
+          <ul class="dropdown-menu">
+            <li><a href="#">Save Data</a></li>
+            <li><a href="#">Fetch Data</a></li>
+          </ul>
+        </li>
+      </ul>
+    </div>
+  </div>
+</nav>

src/app/header/header.component.ts

+import { Component, EventEmitter, Output } from '@angular/core';
+
+@Component({
+  selector: 'app-header',
+  templateUrl: './header.component.html'
+})
+export class HeaderComponent {
+  @Output() featureSelected = new EventEmitter<string>();
+
+  onSelect(feature: string) {
+    this.featureSelected.emit(feature);
+  }
+}

src/app/recipes/recipe-detail/recipe-detail.component.html

+<div class="row">
+  <div class="col-xs-12">
+    <img
+      [src]="recipe.imagePath"
+      alt="{{ recipe.name }}"
+      class="img-responsive"
+      style="max-height: 300px;">
+  </div>
+</div>
+<div class="row">
+  <div class="col-xs-12">
+    <h1>{{ recipe.name }}</h1>
+  </div>
+</div>
+<div class="row">
+  <div class="col-xs-12">
+    <div
+      class="btn-group"
+      appDropdown>
+      <button
+        type="button"
+        class="btn btn-primary dropdown-toggle">
+        Manage Recipe <span class="caret"></span>
+      </button>
+      <ul class="dropdown-menu">
+        <li><a href="#">To Shopping List</a></li>
+        <li><a href="#">Edit Recipe</a></li>
+        <li><a href="#">Delete Recipe</a></li>
+      </ul>
+    </div>
+  </div>
+</div>
+<div class="row">
+  <div class="col-xs-12">
+    {{ recipe.description }}
+  </div>
+</div>
+<div class="row">
+  <div class="col-xs-12">
+    Ingredients
+  </div>
+</div>

src/app/recipes/recipe-detail/recipe-detail.component.ts

+import { Component, OnInit, Input } from '@angular/core';
+
+import { Recipe } from '../recipe.model';
+
+@Component({
+  selector: 'app-recipe-detail',
+  templateUrl: './recipe-detail.component.html',
+  styleUrls: ['./recipe-detail.component.css']
+})
+export class RecipeDetailComponent implements OnInit {
+  @Input() recipe: Recipe;
+
+  constructor() { }
+
+  ngOnInit() {
+  }
+
+}

src/app/recipes/recipe-list/recipe-item/recipe-item.component.html

+<a
+  href="#"
+  class="list-group-item clearfix"
+  (click)="onSelected()">
+  <div class="pull-left">
+    <h4 class="list-group-item-heading">{{ recipe.name }}</h4>
+    <p class="list-group-item-text">{{ recipe.description }}</p>
+  </div>
+  <span class="pull-right">
+        <img
+          [src]="recipe.imagePath"
+          alt="{{ recipe.name }}"
+          class="img-responsive"
+          style="max-height: 50px;">
+      </span>
+</a>

src/app/recipes/recipe-list/recipe-item/recipe-item.component.ts

+import { Component, OnInit, Input, EventEmitter, Output } from '@angular/core';
+
+import { Recipe } from '../../recipe.model';
+
+@Component({
+  selector: 'app-recipe-item',
+  templateUrl: './recipe-item.component.html',
+  styleUrls: ['./recipe-item.component.css']
+})
+export class RecipeItemComponent implements OnInit {
+  @Input() recipe: Recipe;
+  @Output() recipeSelected = new EventEmitter<void>();
+
+  constructor() { }
+
+  ngOnInit() {
+  }
+
+  onSelected() {
+    this.recipeSelected.emit();
+  }
+
+}

src/app/recipes/recipe-list/recipe-list.component.html

+<div class="row">
+  <div class="col-xs-12">
+    <button class="btn btn-success">New Recipe</button>
+  </div>
+</div>
+<hr>
+<div class="row">
+  <div class="col-xs-12">
+    <app-recipe-item
+      *ngFor="let recipeEl of recipes"
+      [recipe]="recipeEl"
+      (recipeSelected)="onRecipeSelected(recipeEl)"></app-recipe-item>
+  </div>
+</div>
+

src/app/recipes/recipe-list/recipe-list.component.ts

+import { Component, OnInit, EventEmitter, Output } from '@angular/core';
+
+import { Recipe } from '../recipe.model';
+
+@Component({
+  selector: 'app-recipe-list',
+  templateUrl: './recipe-list.component.html',
+  styleUrls: ['./recipe-list.component.css'],
+})
+export class RecipeListComponent implements OnInit {
+  @Output() recipeWasSelected = new EventEmitter<Recipe>();
+  recipes: Recipe[] = [
+    new Recipe(
+      'Biryani',
+      'Traditional mughalai biryani ',
+      'https://myfoodstory.com/wp-content/uploads/2018/09/The-Best-Chicken-Biryani-Recipe-2-800x617.jpg'
+    ),
+    new Recipe(
+      'veg burger',
+      'veggie loded burger',
+      'https://www.vegrecipesofindia.com/wp-content/uploads/2020/12/burger-recipe-1.jpg'
+    ),
+  ];
+
+  constructor() {}
+
+  ngOnInit() {}
+
+  onRecipeSelected(recipe: Recipe) {
+    this.recipeWasSelected.emit(recipe);
+  }
+}

src/app/recipes/recipe.model.ts

+export class Recipe {
+  public name: string;
+  public description: string;
+  public imagePath: string;
+
+  constructor(name: string, desc: string, imagePath: string) {
+    this.name = name;
+    this.description = desc;
+    this.imagePath = imagePath;
+  }
+}

src/app/recipes/recipes.component.html

+<div class="row">
+  <div class="col-md-5">
+    <app-recipe-list
+      (recipeWasSelected)="selectedRecipe = $event"></app-recipe-list>
+  </div>
+  <div class="col-md-7">
+    <app-recipe-detail
+      *ngIf="selectedRecipe; else infoText"
+      [recipe]="selectedRecipe"></app-recipe-detail>
+    <ng-template #infoText>
+      <p>Please select a Recipe!</p>
+    </ng-template>
+  </div>
+</div>

src/app/recipes/recipes.component.ts

+import { Component, OnInit } from '@angular/core';
+
+import { Recipe } from './recipe.model';
+
+@Component({
+  selector: 'app-recipes',
+  templateUrl: './recipes.component.html',
+  styleUrls: ['./recipes.component.css']
+})
+export class RecipesComponent implements OnInit {
+  selectedRecipe: Recipe;
+
+  constructor() { }
+
+  ngOnInit() {
+  }
+
+}

src/app/shared/dropdown.directive.ts

+import { Directive, HostListener, HostBinding } from '@angular/core';
+
+@Directive({
+  selector: '[appDropdown]'
+})
+export class DropdownDirective {
+  @HostBinding('class.open') isOpen = false;
+
+  @HostListener('click') toggleOpen() {
+    this.isOpen = !this.isOpen;
+  }
+}

src/app/shared/ingredient.model.ts

+export class Ingredient {
+  constructor(public name: string, public amount: number) {}
+}

src/app/shopping-list/shopping-edit/shopping-edit.component.html

+<div class="row">
+  <div class="col-xs-12">
+    <form>
+      <div class="row">
+        <div class="col-sm-5 form-group">
+          <label for="name">Name</label>
+          <input
+            type="text"
+            id="name"
+            class="form-control"
+            #nameInput>
+        </div>
+        <div class="col-sm-2 form-group">
+          <label for="amount">Amount</label>
+          <input
+            type="number"
+            id="amount"
+            class="form-control"
+            #amountInput>
+        </div>
+      </div>
+      <div class="row">
+        <div class="col-xs-12">
+          <button class="btn btn-success" type="submit" (click)="onAddItem()">Add</button>
+          <button class="btn btn-danger" type="button">Delete</button>
+          <button class="btn btn-primary" type="button">Clear</button>
+        </div>
+      </div>
+    </form>
+  </div>
+</div>

src/app/shopping-list/shopping-edit/shopping-edit.component.ts

+import {
+  Component,
+  OnInit,
+  ElementRef,
+  ViewChild,
+  EventEmitter,
+  Output
+} from '@angular/core';
+
+import { Ingredient } from '../../shared/ingredient.model';
+
+@Component({
+  selector: 'app-shopping-edit',
+  templateUrl: './shopping-edit.component.html',
+  styleUrls: ['./shopping-edit.component.css']
+})
+export class ShoppingEditComponent implements OnInit {
+  @ViewChild('nameInput', { static: false }) nameInputRef: ElementRef;
+  @ViewChild('amountInput', { static: false }) amountInputRef: ElementRef;
+  @Output() ingredientAdded = new EventEmitter<Ingredient>();
+
+  constructor() { }
+
+  ngOnInit() {
+  }
+
+  onAddItem() {
+    const ingName = this.nameInputRef.nativeElement.value;
+    const ingAmount = this.amountInputRef.nativeElement.value;
+    const newIngredient = new Ingredient(ingName, ingAmount);
+    this.ingredientAdded.emit(newIngredient);
+  }
+
+}

src/app/shopping-list/shopping-list.component.html

+<div class="row">
+  <div class="col-xs-10">
+    <app-shopping-edit
+      (ingredientAdded)="onIngredientAdded($event)"></app-shopping-edit>
+    <hr>
+    <ul class="list-group">
+      <a
+        class="list-group-item"
+        style="cursor: pointer"
+        *ngFor="let ingredient of ingredients"
+      >
+        {{ ingredient.name }} ({{ ingredient.amount }})
+      </a>
+    </ul>
+  </div>
+</div>

src/app/shopping-list/shopping-list.component.ts

+import { Component, OnInit } from '@angular/core';
+
+import { Ingredient } from '../shared/ingredient.model';
+
+@Component({
+  selector: 'app-shopping-list',
+  templateUrl: './shopping-list.component.html',
+  styleUrls: ['./shopping-list.component.css']
+})
+export class ShoppingListComponent implements OnInit {
+  ingredients: Ingredient[] = [
+    new Ingredient('Apples', 5),
+    new Ingredient('Tomatoes', 10),
+  ];
+
+  constructor() { }
+
+  ngOnInit() {
+  }
+
+  onIngredientAdded(ingredient: Ingredient) {
+    this.ingredients.push(ingredient);
+  }
+}

src/environments/environment.prod.ts

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

src/environments/environment.ts

+// This file can be replaced during build by using the `fileReplacements` array.
+// `ng build` 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.

src/index.html

+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>FirstApp</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>

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));

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 recent versions of Safari, Chrome (including
+ * Opera), Edge on the desktop, and iOS and Chrome on mobile.
+ *
+ * Learn more in https://angular.io/guide/browser-support
+ */
+
+/***************************************************************************************************
+ * BROWSER POLYFILLS
+ */
+
+/**
+ * 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';  // Included with Angular CLI.
+
+
+/***************************************************************************************************
+ * APPLICATION IMPORTS
+ */

src/styles.css

+/* You can add global styles to this file, and also import other style files */

src/test.ts

+// This file is required by karma.conf.js and loads recursively all the .spec and framework files
+
+import 'zone.js/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): {
+    <T>(id: string): T;
+    keys(): string[];
+  };
+};
+
+// 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().forEach(context);

tsconfig.app.json

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

tsconfig.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": "es2020",
+    "module": "es2020",
+    "lib": [
+      "es2020",
+      "dom"
+    ]
+  },
+  "angularCompilerOptions": {
+    "enableI18nLegacyMessageIdFormat": false
+  }
+}

tsconfig.spec.json

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