New Twiddle

controllers.application.js

import Ember from 'ember';

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

helpers.not.js

import Ember from 'ember';

export function not([arg]/*, hash*/) {
  return !arg;
}

export default Ember.Helper.helper(not);

templates.application.hbs

<input disabled={{isDisabled}} placeholder="Hello">

<button onclick={{action (mut isDisabled) (not isDisabled)}}>
  {{if isDisabled "Enable" "Disable"}}
</button>

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": {}
}