Angular2 - for javascript session 02 (Promise)

<!DOCTYPE html>
<html>

  <head>
    <title>angular2 playground</title>
    <link rel="stylesheet" href="style.css" />
    <script src="https://npmcdn.com/zone.js@0.6.12/dist/zone.js"></script>
    <script src="https://npmcdn.com/reflect-metadata@0.1.3/Reflect.js"></script>
    <script src="https://npmcdn.com/systemjs@0.19.31/dist/system.js"></script>
    <script src="https://npmcdn.com/typescript@1.8.10/lib/typescript.js"></script>
    <script src="config.js"></script>
    <script>
    System.import('app')
      .catch(console.error.bind(console));
  </script>
  </head>

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

</html>

/* Styles go here */

### Angular2 Starter Plunker - Typescript - RC.0

A simple plunker demonstrating Angular2 usage:
- Uses SystemJS + TypeScript to compile on the fly
- Includes binding, directives, http, pipes, and DI usage.

System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  //map tells the System loader where to look for things
  map: {
    app: "./src",
    '@angular': 'https://npmcdn.com/@angular',
    'rxjs': 'https://npmcdn.com/rxjs@5.0.0-beta.6'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    '@angular/core': {
      main: 'bundles/core.umd.js',
      defaultExtension: 'js'
    },
    '@angular/http': {
      main: 'bundles/http.umd.js',
      defaultExtension: 'js'
    },
    '@angular/compiler': {
      main: 'bundles/compiler.umd.js',
      defaultExtension: 'js'
    },
    '@angular/common': {
      main: 'bundles/common.umd.js',
      defaultExtension: 'js'
    },
    '@angular/platform-browser-dynamic': {
      main: 'bundles/platform-browser-dynamic.umd.js',
      defaultExtension: 'js'
    },
    '@angular/platform-browser': {
      main: 'bundles/platform-browser.umd.js',
      defaultExtension: 'js'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});

//main entry point
import {bootstrap} from '@angular/platform-browser-dynamic';
import {App} from './app';
import { HTTP_PROVIDERS } from '@angular/http';
bootstrap(App, [HTTP_PROVIDERS])
  .catch(err => console.error(err));

//our root app component
import {Component} from '@angular/core';
import {UserService} from './user.servise';

@Component({
  selector: 'my-app',
  providers: [],
  template: `
    <div>
      <h2>{{name}}</h2>
      <div  *ngIf="userList.length===0">No Users Yet</div>
      <table *ngIf="userList.length">
        <tr><th>First Name</th><th>Last Name</th></tr>
        <tr *ngFor="let user of userList">
         <td>
           {{user.firstName}}
         </td>
         <td>
           {{user.lastName}}
         </td>         
        </tr>
      </table>
    </div>
  `,
  providers: [UserService]
})
export class App {
  public userList:Array<any>=[];
  constructor(userService:UserService) {
    this.name = 'Users Table:'
    userService.getUsers().then(
      users => this.userList=users,
      error => console.log(error)
    );
  }
}

import { Injectable }    from '@angular/core';
import { Headers, Http } from '@angular/http';
import 'rxjs/add/operator/toPromise';

@Injectable()
export class UserService {
  private url:string = './users.json';
  constructor(private http: Http) {}
  getUsers(): Promise<any[]> {
    return this.http.get(this.url)
    .toPromise()
    .then(response => response.json());
  }
}

[{
  "firstName": "Vasia",
  "lastName": "Kozlov"
},{
  "firstName": "Yosef",
  "lastName": "Stalin"
}]