Flot directive using service with promise, For Blog,Angular2 + Typescript

<!DOCTYPE html>
<html>

  <head>
    <title>angular2 playground</title>
    <link rel="stylesheet" href="style.css" />
    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
    <script src="http://cdnjs.cloudflare.com/ajax/libs/flot/0.8.1/jquery.flot.min.js"></script>
    <script src="http://cdnjs.cloudflare.com/ajax/libs/flot/0.8.1/jquery.flot.categories.min.js"></script>
    <script src="https://code.angularjs.org/2.0.0-beta.0/angular2-polyfills.js"></script>
    <script src="https://code.angularjs.org/tools/system.js"></script>
    <script src="https://code.angularjs.org/tools/typescript.js"></script>
    <script src="config.js"></script>
    <script src="https://code.angularjs.org/2.0.0-beta.0/Rx.js"></script>
    <script src="https://code.angularjs.org/2.0.0-beta.0/angular2.min.js"></script>
    <script src="https://code.angularjs.org/2.0.0-beta.0/http.min.js"></script>
    <script>
    System.import('vasia')
      .catch(console.error.bind(console));
  </script>
  </head>

  <body>
    <my-app> </my-app>
 <!-- -->
  </body>

</html>

/* Styles go here */

### Angular2 Starter Plunker - Typescript - Beta 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: {
    vasia: "./src"
  },
  //packages defines our app package
  packages: {
    vasia: {
      main: './main.ts',
      defaultExtension: 'ts'
    }
  }
});

//main entry point
import {bootstrap} from 'angular2/platform/browser';
import {App} from './app';

bootstrap(App, [])
  .catch(err => console.error(err));

//our root app component
import {Component, OnInit} from 'angular2/core'
import {FlotCmp} from './flot';
import {FlotService} from './FlotService';
import {HTTP_PROVIDERS}    from 'angular2/http';
import {Observable}     from 'rxjs/Observable';

@Component({
  selector: 'my-app',
  providers: [],
  template: `
    <div>
      
      <flot  [options]="splineOptions" [dataset]="dataset" height="250px" width="100%"></flot>
    </div>
  `,
  directives: [FlotCmp],
  providers: [
    FlotService,
    HTTP_PROVIDERS
  ]
})
export class App implements OnInit {
  
  private dataset:any;
  public entries;  
  getEntries() {
    this._flotService.getFlotEntries().then(
                       entries => this.dataset[0].data = entries,
                       error =>  this.errorMessage = <any>error);
  } 
    
  ngOnInit() {  
    this.getEntries() 
    console.log('oninit') 
  } 
   

  
  constructor(private _flotService:FlotService) {
    console.log('contructor')
    this.name = 'Angular2'
    this.splineOptions = {
            series: {
                lines: { show: true },
                points: {
                    radius: 3,
                    show: true
                }
            }
    };
    this.dataset = [{label: "line1",color:"blue",data:null]}];

  }
  


}

import {Component, ElementRef, Input} from 'angular2/core';

@Component({
  selector: 'flot',
  template: `<div>loading</div>`
})

export class FlotCmp{

  private width = '100%';
  private height = 220;
  static chosenInitialized = false;
  
  @Input() private  options: any;
  @Input() private  dataset:any;
  @Input() private  width:string;
  @Input() private  height:string;
      
  constructor(public el: ElementRef) {}

  ngOnInit() {
      if(!FlotCmp.chosenInitialized) {
        let plotArea = $(this.el.nativeElement).find('div').empty();
        plotArea.css({
            width: this.width, 
            height: this.height
        });
        
        $.plot( plotArea, this.dataset, this.options);    
        FlotCmp.chosenInitialized = true;
      }
  } 
  ngDoCheck() {
    if(this.dataset[0].data !== null && !this.dataPlotted) {
        console.log('plotting data');
        let plotArea = $(this.el.nativeElement).find('div').empty();
        $.plot( plotArea, this.dataset, this.options);    
        this.dataPlotted = true; 
    }
  }  
}

import {Injectable} from 'angular2/core'
export var FlotEntries: Array<number>[] = [
    [1, 130],
    [2, 40],
    [3, 80],
    [4, 160],
    [5, 159],
    [6, 370],
    [7, 330],
    [8, 350],
    [9, 370],
    [10, 400],
    [11, 330],
    [12, 350]
];



@Injectable()
export class FlotService {
  getFlotEntries() {
    return Promise.resolve(FlotEntries);
  }
}