My Twiddle

controllers.application\.js

import Controller from '@ember/controller';
import {tracked} from '@glimmer/tracking'
import { isEmpty } from '@ember/utils';  

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';
  @tracked list = [
    "Active Directory and Group Policy",
    "Airwatch",
    "Apple iOS Apps",
    "Blackberry Enterprise Server(BES)",
    "Business Continuity and Disaster Recovery",
    "Database Analysis",
    "Decompiling and Static Analysis",
]
	@tracked filter
  
  get pattern() {
    if (isEmpty(this.filter)) {
      return ''
    }
    return this.filter
      .split('')
      .reduce(function(a,b) {return a + '[^'+b+']*' + b})
  }
  
	get filteredList() {
    if (isEmpty(this.filter)) {
    return this.list
    }
    let reg = new RegExp(this.pattern, "gi");
    console.log(reg);
    let filtered = this.list.filter(x => {
      reg.test(x);
                                             });
    console.log(filtered);
    return filtered;
  }
}

templates.application\.hbs

<h1>Welcome to {{this.appName}}</h1>
<br>
<br>
<Input @value={{this.filter}} /> {{this.pattern}}
<ol>
{{#each this.filteredList as |thing|}}
<li>
{{thing}}
</li>
{{/each}}
</ol>
{{outlet}}
<br>
<br>

twiddle\.json

{
  "version": "0.17.1",
  "EmberENV": {
    "FEATURES": {},
    "_TEMPLATE_ONLY_GLIMMER_COMPONENTS": false,
    "_APPLICATION_TEMPLATE_WRAPPER": true,
    "_JQUERY_INTEGRATION": true
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.js",
    "ember": "3.18.1",
    "ember-template-compiler": "3.18.1",
    "ember-testing": "3.18.1"
  },
  "addons": {
    "@glimmer/component": "1.0.0"
  }
}