Angular2中指令的替代是什么？

Question

I've been learning Angular2. I observed that 'directive' tag was used inside @Component metadata in RC version to refer another component in it. But there is no 'directive' tag associated with it in Ang version 2.1.0. how am I supposed to refer another component now?

Answer 1

You should declare directives in declarations meta property of @NgModule as shown below (as directives meta property has been removed from @Component decorator)

@NgModule({
  imports      : [ BrowserModule, .... ],
  declarations : [
    AppComponent,
    DashboardComponent    //<<<### here it is another component or directive,
    HighlightDirective    //<<<### directive declared with @Directive decorator
  ],
  providers    : [  ],
  bootstrap    : [ AppComponent ]
})

export class AppModule { }

for more information you can refer to https://angular.io/docs/ts/latest/guide/ngmodule.html