New Twiddle

controllers.application\.js

import Ember from 'ember';

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

templates.application\.hbs

<style>input {border: 5px solid green}</style>
<style>input[spellcheck="true"] {border: 5px solid red}</style>
<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
<label>A regular input, with no spellcheck (should be green)</label>
<input value="a" spellcheck="false">

<label>A regular input, with no spellcheck (should be green), but with a hook</label>
<input value="a" spellcheck="false" {{on "click" true}} />

twiddle\.json

{
  "version": "0.16.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.14.3",
    "ember-template-compiler": "3.14.3",
    "ember-testing": "3.14.3"
  },
  "addons": {
    "ember-data": "3.14.1"
  }
}