New Twiddle

components.checkbox-item.js

import Ember from 'ember';

export default Ember.Component.extend({
  init() {
    this._super();
    
    this.set('inputId', this.elementId);
  },
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

{{checkbox-item label="Checkbox One"}}
{{checkbox-item label="Checkbox Two"}}

templates.components.checkbox-item.hbs

<input type="checkbox" id="foo-{{inputId}}">


<label for="foo-{{inputId}}">
  {{label}}
</label>

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"
  }
}