replaceIn

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  init: function () {
    this._super();
    Ember.run.schedule("afterRender",this,function() {
      this.send("later");
    });
  },

  actions: {
    later: function() {
      //this.replaceIn(Ember.$('.target')[0])
    console.log(Ember.$('.target')[0])
      console.log("later");
    }
  }
});

templates.application.hbs

<div class="target">

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


{{outlet}}
<br>
<br>

templates.components.my-component.hbs

{{yield}}
Test

twiddle.json

{
  "version": "0.10.6",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "release",
    "ember-data": "2.9.0",
    "ember-template-compiler": "release",
    "ember-testing": "release"
  },
  "addons": {}
}