jQuery to Angular 2

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `
  <h1>Angular Style</h1>
  <app-products></app-products>
  `,
})
export class AppComponent {
}

//main entry point
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './app/app.module';

platformBrowserDynamic().bootstrapModule(AppModule)

<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <title>angular vs jQuery</title>
    <script src="https://unpkg.com/zone.js/dist/zone.js"></script>
    <script src="https://unpkg.com/zone.js/dist/long-stack-trace-zone.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
    <script src="https://unpkg.com/systemjs@0.19.31/dist/system.js"></script>
    <script src="config.js"></script>
    <script>
    System.import('app')
      .catch(console.error.bind(console));
  </script>
  </head>

  <body>
    <app-root>loading...</app-root>
  </body>

</html>

System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  paths: {
    'npm:': 'https://unpkg.com/'
  },
  //map tells the System loader where to look for things
  map: {
    
    'app': './src',
    
    '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
    '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
    
    '@angular/core/testing': 'npm:@angular/core/bundles/core-testing.umd.js',
    '@angular/common/testing': 'npm:@angular/common/bundles/common-testing.umd.js',
    '@angular/compiler/testing': 'npm:@angular/compiler/bundles/compiler-testing.umd.js',
    '@angular/platform-browser/testing': 'npm:@angular/platform-browser/bundles/platform-browser-testing.umd.js',
    '@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic-testing.umd.js',
    '@angular/http/testing': 'npm:@angular/http/bundles/http-testing.umd.js',
    '@angular/router/testing': 'npm:@angular/router/bundles/router-testing.umd.js',
    
    'rxjs': 'npm:rxjs',
    'typescript': 'npm:typescript@2.0.2/lib/typescript.js'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});

import { Injectable } from '@angular/core';
import { Product } from './product.model';

const PRODUCTS = [
  {"id": 1, "name": "Bag of suck", "price": 100, "details": "You don't want to own this!"},
  {"id": 2, "name": "Bag of luck", "price": 200, "details": "You might want to own this!"},
  {"id": 3, "name": "Bag of fuck", "price": 300, "details": "You really want to own this!"}
];

@Injectable()
export class ProductService {
  
  getProducts(): Product[] {
    // 외부 API 호출을 통한 데이터 조회
    return PRODUCTS;
  }
}

export class Product {
  id: number;
  name: string;
  price: number;
  details: string;
}

import { Component } from '@angular/core';
import { ProductService } from './product.service';

@Component({
  selector: 'app-products',
  template: `
  <ul>
    <li *ngFor="let product of products" 
      (click)="handleProductClick(product)" 
      [ngClass]="{collapsed : selectedItemId !== product.id && !noneSelected }">
        {{product.name}} ({{product.price}})
        <div *ngIf="selectedItemId === product.id">{{product.details}}</div>
    </li>
  </ul>
  `,
  styles: [`
    .collapsed {
      color: grey;
    }
    
    li {
      cursor: pointer;
    }
  `]
})
export class ProductsComponent {
  products: Product[];
  selectedItemId: number;
  noneSelected: boolean;

  constructor(productService: ProductService) {
    this.products = productService.getProducts();
    this.noneSelected = true;
  }
  
  handleProductClick(selectedItem: Product) {
    if (this.selectedItemId === selectedItem.id) {
      this.selectedItemId = null;
      this.noneSelected = true;
      return;
    }
    
    this.noneSelected = false;
    this.selectedItemId = selectedItem.id;
  }
}

import { NgModule } from '@angular/core'
import { FormsModule } from '@angular/forms'
import { BrowserModule } from '@angular/platform-browser'

import { AppComponent } from './app.component';
import { ProductsComponent } from './products/products.component';
import { ProductService } from './products/product.service';

@NgModule({
  imports: [ BrowserModule, FormsModule ],
  declarations: [ AppComponent, ProductsComponent],
  providers: [ProductService]
  bootstrap: [ AppComponent ]
})
export class AppModule {}