This is a TypeScript code snippet that we used for our blog post https://rubygarage.org/blog/the-angular-2-vs-react-contest-only-livens-up at RubyGarage. The code shows how to register multiple app components in an Angular 2 module.

angular-2-app-module.ts

import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { LaptopsComponent } from './laptops/laptop.component';
import { LaptopPartsComponent } from './laptops/laptop-parts.component';

@NgModule({
  imports: [ ],
  declarations: [ 
    AppComponent, 
    LaptopsComponent, 
    LaptopPartsComponent ],
  bootstrap: [ AppComponent ]
})

export class AppModule {}