Demonstrating custom data attributes

components.another-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({

});

 Ember.LinkComponent.reopen({
  attributeBindings: ['data-toggle', 'lang']
  });

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}}
{{my-component}}
<br>
<br>
{{another-component}}
<br>
<br>
See <a href="https://guides.emberjs.com/v2.18.0/templates/binding-element-attributes/">Ember.js Guides</a> for source

templates.components.another-component.hbs

{{yield}}
{{#link-to 'index' lang="es" data-toggle="dropdown"}}This link does NOT have lang or data-toggle because they were not enabled in the JS{{/link-to}}

templates.components.my-component.hbs

{{yield}}
{{#link-to 'index' lang="es" data-toggle="dropdown"}}This link has lang and data-toggle attributes{{/link-to}}

twiddle.json

{
  "version": "0.13.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3"
  }
}