clousre action

components.cox-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  name: 'cox'
});

components.foo-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  name: 'foo',
  
  init() {
  	this._super(...arguments);
    this.set('objProp', { name: 'name-foo' });
  },
  
  actions: {
  	say(obj) {
      if (obj) {
        console.log('first param of action:', obj);
        console.log('name prop of first param:', Ember.get(obj, 'name'));
      }
    	console.log('action called!');
    }
  }
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

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

{{foo-component}}
<br>
<br>

templates.components.bar-component.hbs

<div onclick={{action onClick attr}}>click bar</div>

templates.components.cox-component.hbs

<div onclick={{action onClick this}}>click {{name}}</div>

templates.components.foo-component.hbs

<button {{action "say"}}>click me {{name}}</button>

{{bar-component onClick=(action "say") attr=objProp}}
{{cox-component onClick=(action "say")}}

twiddle.json

{
  "version": "0.15.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.2.2",
    "ember-template-compiler": "3.2.2",
    "ember-testing": "3.2.2"
  },
  "addons": {
    "ember-data": "3.2.0"
  }
}