https://stackoverflow.com/questions/44690420/simple-ember-js-input-syntax/44690831

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  name:'K',
  actions:{
    nameChanged(){
     console.log(' ',...arguments);
    }
  }
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
{{my-component }}
<br>
{{outlet}}
<br>
<br>

templates.components.my-component.hbs

{{input value=name key-up='nameChanged' }}
{{input value=name key-up=(action 'nameChanged') }}
{{input value=name keyUp=(action 'nameChanged') }}
{{input value=name keyUp='nameChanged' }}
{{yield}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}