New Twiddle

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'li'
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  actions: {
   removeItem: function(item) {
    this.get('model').removeObject(item); 
   }
  }
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  model: function() {
   return [
     Ember.Object.create({name: 'foo'}),
     Ember.Object.create({name: 'bar'}),
     Ember.Object.create({name: 'baz'})
     ]
  }
});

templates.application.hbs

<ul>
  {{#each model as |item idx|}}
   {{my-component item=item removeAction=(action "removeItem") id=(concat "item-" idx)}}
  {{/each}}
</ul>

templates.components.my-component.hbs

name: {{item.name}} <a href="" {{action removeAction item}}>Delete</a>

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.7.0",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.7.0"
  },
  "addons": {}
}