Component Lifecycles

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  logger: Ember.inject.service(),
  
  log(message) {
    this.get('logger').log(this.get('name'), message);
  },
  
  init() {
    this._super(...arguments);
    this.log('init');
  },
  
  didInsertElement() {
    this._super(...arguments);
    this.log('didInsertElement');
  },
  
  // This is not a thing
  willRemoveElement() {
    this._super(...arguments);
    this.log('willRemoveElement');
  },

  // This is not a thing
  didRemoveElement() {
    this._super(...arguments);
    this.log('didRemoveElement');
  },
  
  willDestroyElement() {
    this._super(...arguments);
    this.log('willDestroyElement');
  },
  
  didDestroyElement() {
    this._super(...arguments);
    this.log('didDestroyElement');
  },
  
  willDestroy() {
    this._super(...arguments);
    this.log('willDestroy');
  },
  
  didDestroy() {
    this._super(...arguments);
    this.log('didDestroy');
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  logger: Ember.inject.service()
});

router.js

import EmberRouter from '@ember/routing/router';
import config from './config/environment';

const Router = EmberRouter.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('foo');
  this.route('bar');
});

export default Router;

services.logger.js

import Ember from 'ember';

export default Ember.Service.extend({
  init() {
    this._super(...arguments);
    this.set('logs', []);
  },
  
  log(label, message) {
    this.get('logs').pushObject({ label, message });
  }
});

templates.application.hbs

{{link-to "Foo" "foo"}} | {{link-to "Bar" "bar"}}
<br>

{{outlet}}

<ol>
  {{#each logger.logs as |log|}}
    <li>{{log.label}} -> {{log.message}}</li>
  {{/each}}
</ol>

templates.bar.hbs

<h1>Bar</h1>

{{#my-component name="Bar"}}
  {{my-component name="Bar Child"}}
{{/my-component}}

templates.components.my-component.hbs

<h3>my-component ({{name}})</h3>
{{yield}}

templates.foo.hbs

<h1>Foo</h1>

{{my-component name="Foo"}}

templates.index.hbs

<p>Switch routes to see components being rendered and removed</p>

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0"
  },
  "addons": {
  }
}