Angular Directive's lifecycle

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    <title>angular2 playground</title>
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    <script src="config.js"></script>
    <script>
    System.import('app')
      .catch(console.error.bind(console));
  </script>
  </head>

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

</html>

/* Styles go here */

### Angular Starter Plunker - Typescript

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'
    }
  }
});

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

platformBrowserDynamic().bootstrapModule(AppModule);

//our root app component
import { Component, NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { TestDirective } from './test.directive';



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

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

@Component({
  selector: 'sample-app',
  template: `
  <h2>Directive's lifecycle</h2>
  <button type="button" (click)="toggle= !toggle">toggle</button> <br>
  <input type="text" [(ngModel)]="myTest" /> <br>
  <input type="text" [(ngModel)]="testData" /> <br>
  <div *ngIf="toggle" [myTest]="myTest" [testData]="testData" >Directive's host</div>
  `,
})
export class AppComponent {
  toggle: boolean = false;
  myTest: string;
  testData: string;
  
  constructor() { }
}

import { Directive, Input, SimpleChanges, OnChanges, OnInit, OnDestroy, DoCheck, 
 AfterContentInit, AfterContentChecked, AfterViewInit, AfterViewChecked} from '@angular/core';

@Directive({
  selector: '[myTest]'
})
export class TestDirective implements DoCheck, OnChanges, OnInit, OnDestroy, 
  AfterViewInit, AfterViewChecked, AfterContentInit, AfterContentChecked {
  @Input() myTest: any;
  @Input() testData: any;
  
  ngOnChanges(changes: SimpleChanges) {
    console.log('ngOnChanges');
    for(let propName in changes) {
      console.dir(changes[propName]);
    }
  }
  
  ngOnInit() {
    console.log('ngOnInit');
  }
  
  ngOnDestroy() {
    console.log('ngOnDestory');
  }
  
  ngDoCheck() {
    console.log('ngDoCheck');
  }
  
  ngAfterContentInit() {
    console.log('ngAfterContentInit');
  }
  
  ngAfterContentChecked() {
    console.log('ngAfterContentChecked');
  }
  
  ngAfterViewInit() {
    console.log('ngAfterViewInit');
  }
  
  ngAfterViewChecked() {
    console.log('ngAfterViewChecked');
  }
}