ember closure actions

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  
  actions: {
    login() {
      alert('comp login'); 
      this.sendAction('login');
      return true; // 无用
    }
  }
});

controllers.application.js

import Ember from 'ember';

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

controllers.index.js

import Ember from 'ember';

export default Ember.Controller.extend({
  
  
  actions: {
    login(e) {
      alert('ctrl login');
      alert(e);
      return true;
    }
  }
});

routes.index.js

import Ember from 'ember';

export default Ember.Route.extend({
  actions: {
    login() {
      alert('router login'); 
      return true;
    }
  }
});

templates.application.hbs

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

templates.components.my-component.hbs

<a href='' {{action 'login'}}> comp login</a>

templates.index.hbs

<a href='' {{action 'login'}}>login</a>
<a href='' onclick={{action 'login'}}>login2</a>
{{input type='button' value='login3' click=(action 'login') }}
{{my-component login=(action 'login')  }}

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"
  }
}