New Twiddle

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  people: [{id:"user1", firstname: "user1"},{id:"user1", firstname: "user1"},{id:"user1", firstname: "user1"},{id:"user1", firstname: "user1"},{id:"user1", firstname: "user1"},{id:"user1", firstname: "user1"}],
  test:"testing"
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{log test}}
{{multi-select options=people}}

{{outlet}}
<br>
<br>

components.multi-select.js

import Ember from 'ember';

export default Ember.Component.extend({
  init: function(){
    
  	 var tmp = '<select class="multi" multiple="multiple">'
      + '{{#each person in options}}'
       + '<option {{bind-attr value="person.id"}}>{{person.firstName}}</option>'
      +'{{/each}}'
    +'</select>';
    this.set('dynamicTemplate', tmp);

        this.set('layout', Ember.Handlebars.compile(this.get('dynamicTemplate'), true));
    this._super();
  },
  
  _initializeMulti: (function() {
    return $(".multi").multiSelect({

      afterSelect: (function(_this) {
        return function(values) {
          return _this.sendAction("addAction", values);
        };
      })(this),

      afterDeselect: (function(_this) {
        return function(values) {
          return _this.sendAction("removeAction", values);
        };
      })(this)

    });
  }).on("didInsertElement")
});

twiddle.json

{
  "version": "0.6.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.3.1/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.3.3/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember-template-compiler.js"
  }
}