ember-select-example

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  value: 'Hardcover', 
  
  actions: {
    updateValue(event){
      console.log(event.target.value);
      this.set('value', event.target.value); 
    }
  }
  
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<select id="format" onchange={{action 'updateValue'}}>
      <option value=""></option>
      <option value="Paperback" selected={{eq value "Paperback"}} >Paperback</option>
      <option value="Hardcover" selected={{eq value "Hardcover"}} >Hardcover</option>
      <option value="E-Book" selected={{eq value "E-Book"}}>E-Book</option>
    </select> 
    

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-truth-helpers": "2.1.0"
  }
}