Stackoverflow Question #43200191

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  myService: Ember.inject.service(),
  
  didDestroyElement() {
    console.log('@didDestroyElement');
  },
  
  willDestroyElement() {
    console.log('@willDestroyElement');
  },
  
  willClearRender() {
    console.log('@willClearRender');
  },
  
  myObserver: Ember.observer('myService.total', function(){
    console.log('@observer');
  }),
  
  actions: {
    removeFromDOM() {
      this.$().remove();
      this.destroy();
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  myService: Ember.inject.service(),
  
  actions: {
    incrementTotalOfService() {
      this.get('myService').incrementProperty('total');
    }
  }
});

services.my-service.js

import Ember from 'ember';

export default Ember.Service.extend({
  total: 0
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{my-component}}
<button onclick={{action 'incrementTotalOfService'}}>Increment service's total to see component's observer</button>
<br>
<br>

templates.components.my-component.hbs

{{yield}}
Click button below to remove this component from DOM!
Total of service is :{{myService.total}}
<br>
<button onclick={{action 'removeFromDOM'}}>Remove</button>

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"
  }
}