New Twiddle

controllers.application.js

import Ember from 'ember';

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

controllers.results.js

import Ember from 'ember';

export default Ember.Controller.extend({

	queryParams: [
		'foo'
	],
	foo: [],
	
	actions: {
	  removeItem: function(i) {
		  alert(`about to remove ${i.toString()}`);
		  this.foo.removeObject(i.toString());
		  console.log(this.foo);
	  },	  
	}	
});

router.js

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('results');
});

export default Router;

routes.results.js

import Ember from 'ember';

export default Ember.Route.extend({
	queryParams: {
		foo: { refreshModel: true }
	}
});

templates.application.hbs

<h1>query param arrays</h1>

paste this into the URL field above:<br>

<br>
/results?foo=%5B%22ray%22%2C%22freakin%22%2C%22tiley%22%5D
<br><br>
which should end up controller property:<br><br>

foo: ['ray','freakin','tiley']

{{outlet}}
<br>
<br>

templates.results.hbs

<br><br>
foo array contains: {{foo}}<br><br>
Click one to remove from array:<br>
{{#each foo as |f|}}
delete <a href="#" {{action "removeItem" f}}>{{f}}</a><br>
{{/each}}
{{outlet}}

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2"
  },
  "addons": {}
}