Rating Slider

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'input',
  attributeBindings: ['type','min','max','step'],
  type: 'range',
  min: 1,
  max: 5,
  step: 1,
  input(e) {
  	this.sendAction('setRating', e.target.value);
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  currentRating: 3,
  stars: Ember.computed('currentRating', function() {
		let stars = [];
    for (let i = 0; i < this.get('currentRating'); i++) {
      stars.push({});
    }
    return stars;
  }),
  actions: {
    setRating(value) {
     	this.set('currentRating', value); 
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}

Current rating: {{currentRating}}<br>

{{#each stars as |star|}}
  🌟
{{/each}}

<br>
{{#my-component setRating="setRating"}}Rate me{{/my-component}}
<br>
<br>

templates.components.my-component.hbs

{{yield}}

twiddle.json

{
  "version": "0.8.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-data": "2.5.2",
    "ember-template-compiler": "2.5.1"
  }
}