hash-demo

components.person-detail.js

import Ember from 'ember';

export default Ember.Component.extend({
  doubleClick() {
    let person = this.get('person');
    let handler = person.handler;
    handler(person.firstname);
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  actions: {
    hello(firstname) {
      alert(`hi ${firstname}`);
    }
  }
});

templates.application.hbs

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

{{person-detail person=(hash firstname='Luke' lastname='Skywalker' handler=(action 'hello'))}}

<br>
<br>

templates.components.person-detail.hbs

Firstname:{{person.firstname}}<br>
Lastname: {{person.lastname}}

twiddle.json

{
  "version": "0.10.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.6.0",
    "ember-data": "2.6.1",
    "ember-template-compiler": "2.6.0"
  },
  "addons": {}
}