dependency injection - How to use angular2 DynamicComponentLoader in ES6?

Question

I'm not using typescript but ES6 and angular2 alpha39 to load a component dynamically. The following code is similar to what I have in my app. What I have noticed is angular2 does not create an instance of DynamicComponentLoader nor ElementRef and inject into the constructor. They are undefined.

How can I do the injection of DynamicComponentLoader using ES6 and angular2 alpha39?

import {Component, View, Inject, DynamicComponentLoader, ElementRef } from 'angular2/angular2'

@Component({
  selector: 'dc',
  bindings: [ DynamicComponentLoader ]
})
@View({
  template: '<b>Some template</b>'
})

class DynamicComponent {}

@Component({
  selector: 'my-app'
})
@View({
  template: '<div #container></div>'
})
@Inject(DynamicComponentLoader)
@Inject(ElementRef)
export class App {
  constructor(
    dynamicComponentLoader, 
    elementRef
  ) {
    dynamicComponentLoader.loadIntoLocation(DynamicComponent, elementRef, 'container');
  }
}

Answer 1

If you want to write code in ES7, I think the most concise approach to specify injections at this time is to use static getter for parameters:

import {Component, View, DynamicComponentLoader, ElementRef } from 'angular2/angular2'

@Component({
  selector: 'my-app'
})
@View({
  template: '<div #container></b>'
})
export class App {

  static get parameters() {
    return [[DynamicComponentLoader], [ElementRef]];  
  }

  constructor(dynamicComponentLoader, elementRef) {
    dynamicComponentLoader.loadIntoLocation(DynamicComponent, elementRef, 'container');
  }
}

See this plunker

If you want to write code in ES6, which doesn't support decorators, you must also use static getter for annotations property. In this case you must import ComponentMetadata and ViewMetadata instead of Component and View For example:

import {ComponentMetadata, ViewMetadata, DynamicComponentLoader, ElementRef } from 'angular2/angular2';

export class App {

  static get annotations() {
    return [
      new ComponentMetadata({
        selector: 'app'
      }),
      new ViewMetadata({
        template: '<div #container></b>'
      })
    ];
  }

  static get parameters() {
    return [[DynamicComponentLoader],[ElementRef]];  
  }

  constructor(dynamicComponentLoader, elementRef) {
    dynamicComponentLoader.loadIntoLocation(DynamicComponent, elementRef, 'container');
  }
}

See this plunker