tagName-null

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  init: function() {
    this._super.apply(this, arguments);
    console.log(this.get('tagName'));
  },
  whatIsTheTagName: Ember.computed('tagName', function() {
    let tagName = this.get('tagName');
    if (tagName === null) {
      return "null";
    } else {
      return this.get('tagName');
    }
  })
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

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

{{my-component}} {{! this is actually a div}}
{{my-component tagName="div"}}
{{my-component tagName=""}}
{{my-component tagName="span"}}

templates.components.my-component.hbs

{{yield}}

<p>Your tag name is: {{whatIsTheTagName}}</p>

twiddle.json

{
  "version": "0.10.7",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.0",
    "ember-data": "2.10.0",
    "ember-template-compiler": "2.10.0",
    "ember-testing": "2.10.0"
  },
  "addons": {}
}