New Twiddle

controllers.application.js

import Ember from 'ember';

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

helpers.e.js

import Ember from 'ember';

export function e(params/*, hash*/) {
  function ctx(data) {
  	return eval(data);
  }
  return ctx.call(params[1], params[0]);
}

export default Ember.Helper.helper(e);

templates.application.hbs

<div user=`["a",${this.name},"b","c"]`></div>

{{#let (e '[1,2,3,true, false, null, "hello", this.appName,4]' this) as |items|}}
	{{#each items as |item|}}
  	<b>{{item}}</b>
  {{/each}}
{{/let}}

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
}