New Twiddle

controllers.application.js

import Ember from 'ember';
import { computed, observer } from '@ember/object';
import { debounce } from '@ember/runloop';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  init() {
    this._super(...arguments);
    this.set('debouncedoutput', []);
  },
  
  searchText: '',
  filter: '',
  
  filterChanged: observer('searchText', function () {
    debounce(this, function () {
      console.log(this.get('searchText') + ' @ ' + new Date());
      this.set('filter', this.get('searchText'));
    }, 5000, false);
  })
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

{{input
  value=searchText
  class="form-control form-control-sm"
  onchange=(action (mut searchText))
  placeholder="Enter text here"
}}

<p>Current value: {{filter}}</p>

<p>Output:</p>
<ul>
{{#each debouncedoutput as |output|}}
	<li>{{output}}</li>
{{/each}}
</ul>

({{debouncedoutput.length}} items)

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": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
}