New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  queryParams: ['array', 'other'],
  array: [],
  other: null,
  
  actions: {
    setArray() {
      this.set('array', [1]);
    },
    refresh() {
      this.set('other', 'foo');
      this.send('refreshRoute');
    },
  },
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  actions: {
    refreshRoute() {
  		this.refresh();
  	},
  },
});

templates.application.hbs

<button {{action "setArray"}}>set array</button>
<button {{action "refresh"}}>refresh</button>

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.7.0",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.7.0"
  },
  "addons": {}
}