button component

components.button-comp\.js

import Component from '@ember/component';
export default Component.extend({  
  tagName: 'button',
  attributeBindings: [
    'isDisabled:disabled',
    'onClick:click',
    'type'
  ],
  isDisabled: true,

  click() {
    console.log('click');
  }
});

controllers.application\.js

import Controller from '@ember/controller';

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';
}

templates.application\.hbs

<h1>Welcome to {{this.appName}}</h1>
<br>
<br>
{{button-comp type="button"}}
{{outlet}}
<br>
<br>

templates.components.button-comp\.hbs

<span class="a11y-text" data-test-a11y-label>hello</span> 

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"
  }
}