FE Candidate Question

components.rating-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  maxStar: 5,
  
  actions: {
    onSelected(star) {
      this.set('item.star', star)
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  book: {
    name: 'Blindness by Jose Saramago'
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{rating-component item=book}}
<br>
<br>

templates.components.rating-component.hbs

Please select the rating for {{item.name}}:
<br>

{{#each (range 1 maxStar true) as |number|}}
	<input type="checkbox" checked={{eq item.star number}} onchange={{action "onSelected" number}}>
  {{#each (range 0 number)}}
  	*
  {{/each}}
  <br>
{{/each}}

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",
    "ember-composable-helpers": "2.1.0",
    "ember-truth-helpers": "2.1.0"
  }
}