InboundActions - concatenatedProperties

components.my-component.js

import Ember from 'ember';
import InboundActions from 'ember-component-inbound-actions/inbound-actions';

export default Ember.Component.extend(InboundActions, {
  
  concatenatedProperties: ['x'],
  
  x: ['A'],
  classNames: ['A'],
  
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

{{my-component
  caseDescription="without binding the actionReceiver"
  x="B"
  classNames="B"
}}

{{my-component
  caseDescription="with binding the actionReceiver"
  x="B"
  classNames="B"
  actionReceiver=actionReceiver
}}

templates.components.my-component.hbs

<h2>{{caseDescription}}</h2>

x: {{x}}
<br>
classNames: {{classNames}}

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",
    "ember-component-inbound-actions": "1.3.1"
  }
}