angular4 example

by Luca Kiebel

HTML

<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.8.5/dist/zone.min.js"></script>
<script src="https://unpkg.com/rxjs@5.2.0/bundles/Rx.min.js"></script>
<script src="https://unpkg.com/@angular/core@4.0.1/bundles/core.umd.js"></script>
<script src="https://unpkg.com/@angular/common@4.0.1/bundles/common.umd.js"></script>
<script src="https://unpkg.com/@angular/compiler@4.0.1/bundles/compiler.umd.js"></script>
<script src="https://unpkg.com/@angular/platform-browser@4.0.1/bundles/platform-browser.umd.js"></script>
<script src="https://unpkg.com/@angular/platform-browser-dynamic@4.0.1/bundles/platform-browser-dynamic.umd.js"></script>
<my-app></my-app>

TypeScript

let { Component, NgModule, ViewChild } = ng.core;

@Component({
  selector: 'my-app',
  template: `
  	<input type="text" #elem (keypress)="clearInput($event)">
  `,
})
class HomeComponent {
  	@ViewChild( 'elem' ) public element;
		clearInput( e: KeyboardEvent ) {
    	if ( e.keyCode === 44 ) {
  			this.element.nativeElement.value = '';
        return false;
      } else {
      	console.log('Not a comma');
      }
    }
}

const { BrowserModule } = ng.platformBrowser;

@NgModule({
  imports:      [ BrowserModule ],
  declarations: [ HomeComponent ],
  bootstrap:    [ HomeComponent ]
})
class AppModule { }

const { platformBrowserDynamic } = ng.platformBrowserDynamic;
platformBrowserDynamic().bootstrapModule(AppModule);