<!DOCTYPE html>
<html>

  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    
    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
    <base href="." />
    <base href="." />
    <script src="https://use.fontawesome.com/dc93fa17c7.js"></script>
    <script type="text/javascript" charset="utf-8">
      window.AngularVersionForThisPlunker = 'latest'
    </script>
    <title>angular playground</title>
    <link rel="stylesheet" href="style.css" />
    <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
    <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 class="container mt-1">
    <my-app>loading...</my-app>
    
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4" crossorigin="anonymous"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script>
  </body>

</html>
/* Styles go here */
### Angular Starter Plunker - Typescript
var angularVersion;
if(window.AngularVersionForThisPlunker === 'latest'){
  angularVersion = ''; //picks up latest
}
else {
  angularVersion = '@' + window.AngularVersionForThisPlunker;
}

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'+ angularVersion + '/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common' + angularVersion + '/bundles/common.umd.js',
    '@angular/compiler': 'npm:@angular/compiler' + angularVersion  + '/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http' + angularVersion + '/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router' + angularVersion +'/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms' + angularVersion + '/bundles/forms.umd.js',
    '@angular/animations': 'npm:@angular/animations' + angularVersion + '/bundles/animations.umd.js',
    '@angular/platform-browser/animations': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-animations.umd.js',
    '@angular/animations/browser': 'npm:@angular/animations' + angularVersion + '/bundles/animations-browser.umd.js',
    
    '@angular/core/testing': 'npm:@angular/core' + angularVersion + '/bundles/core-testing.umd.js',
    '@angular/common/testing': 'npm:@angular/common' + angularVersion + '/bundles/common-testing.umd.js',
    '@angular/compiler/testing': 'npm:@angular/compiler' + angularVersion + '/bundles/compiler-testing.umd.js',
    '@angular/platform-browser/testing': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-testing.umd.js',
    '@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic-testing.umd.js',
    '@angular/http/testing': 'npm:@angular/http' + angularVersion + '/bundles/http-testing.umd.js',
    '@angular/router/testing': 'npm:@angular/router' + angularVersion + '/bundles/router-testing.umd.js',
    'tslib': 'npm:tslib@1.6.1',
    'rxjs': 'npm:rxjs',
    'typescript': 'npm:typescript@2.2.1/lib/typescript.js'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});
//main entry point
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './app.module';

platformBrowserDynamic().bootstrapModule(AppModule)
import {Component} from '@angular/core'
import {Item} from './item.model' 

@Component({
  selector: 'my-item',
  templateUrl: './src/item.component.html',
})
export class ItemComponent {
 items: Array<Object>;
 constructor() {
   this.items = [ 
      new Item(1,'ไม้จิ้มฟัน',20),
      new Item(3,'สากกระเบือ',300),
      new Item(2,'เรือรบ', 150) ,
      new Item(4,'Kinder egg', 45) 
     ];
 }
}
export class Item {
  constructor (
    public id: number,
    public description: string,
    public price: number,
    public comment: string
    ) {}
}
//our root app module
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RouterModule } from '@angular/router';

import { AppComponent } from './app.component';
import { ItemComponent } from './item.component';
import { CartComponent } from './cart.component';

import { AppRouteModule } from './app-route.module';

@NgModule({
  imports: [ 
        BrowserModule,
        AppRouteModule
  ],
  declarations: [ 
    AppComponent, 
    ItemComponent, 
    CartComponent ],
  bootstrap: [ AppComponent ]
})
export class AppModule {}
<div class="card card-block" *ngFor="let item of items">
   <h5 class="card-title">สินค้า: {{item.description}}</h5>
   <p class="card-text">ราคา: {{item.price}} บาท</p>
</div>
<div class="card card-block">
   <h4 class="card-title">รายการที่ซื้อ</h4>
</div>
<button type="button" class="btn" (click)="goBack()">
  <i class="fa fa-arrow-left fa-lg" aria-hidden="true">Back</i>
</button>  
import { Component }  from '@angular/core'
import { Location } from '@angular/common';

@Component({
  selector: 'my-cart',
  templateUrl: './src/cart.component.html',
})
export class CartComponent {
  
  constructor(private location: Location) {}
  
  goBack() : void {
   this.location.back();
 }

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

@Component({
  selector: 'my-app',
  templateUrl: "src/app.component.html"
})
export class AppComponent {
}
<div>
  <button type="button"
      [routerLink]="['/cart']"
     
      class="btn btn-primary">
    <i class="fa fa-shopping-cart fa-lg" aria-hidden="true"></i>
    <span class="badge badge-secondary">0</span>
  </button>  
</div>
<p></p>
<router-outlet></router-outlet>
import { NgModule }             from '@angular/core';
import { Routes, RouterModule } from '@angular/router';

import { ItemComponent } from './item.component';
import { CartComponent } from './cart.component';

const routes: Routes = [
  { path: '', redirectTo '/item', pathMatch: 'full' },
  { path: 'item', component: ItemComponent },
  { path: 'cart', component: CartComponent }
];


@NgModule({
  imports: [ RouterModule.forRoot(routes,  {useHash: true}) ],
  exports: [ RouterModule ]
})
export class AppRouteModule {}