Stackoverflow Question #42825536 modified

components.my-modal.js

import Ember from 'ember';

export default Ember.Component.extend({
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  actions: {
    onModalHidden() {
      this.set('modal1', false);
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{#bs-button onClick=(action (mut modal1) true)}}Open Modal{{/bs-button}}
{{my-modal modal1=(readonly modal1) onModalHidden=(action 'onModalHidden')}}
<br>
<br>

templates.components.my-modal.hbs

{{#bs-modal-simple open=modal1 title="Simple Dialog" size="sm" onHidden=(action onModalHidden)}}
  Hi there
{{/bs-modal-simple}}

twiddle.json

{
  "version": "0.11.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.11.0",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.11.0",
    "ember-testing": "2.11.0"
  },
  "addons": {
  	"ember-bootstrap":"1.0.0-alpha.5"
  }
}