New Twiddle

components.child-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  
  didInsertElement() {
    console.log('child  | didInsertElement 1');
    this._super(...arguments);
    console.log('child  | didInsertElement 2');
    
    Ember.run.schedule('afterRender', () => {
      console.log('child  | afterRender');
      
      Ember.run.next(()=> {
        console.log('child  | afterRender run next');
      });
    })
  }
});

components.parent-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  
  didInsertElement() {
    console.log('parent | didInsertElement 1');
    
    this._super(...arguments);
    
    console.log('parent | didInsertElement 2');
    
    this.doSomething('normal');
    Ember.run.debounce(this, this.doSomething, 0);
  },

  doSomething(runAt = 'debounced') {
    console.log('parent | doSomething', runAt);
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
{{parent-component}}

templates.components.child-component.hbs

{{yield}}
child

templates.components.parent-component.hbs

{{yield}}
parent
{{child-component}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}