New Twiddle

components.my-item.js

import Ember from 'ember';
import hbs from 'htmlbars-inline-precompile';
import connect from 'ember-redux/components/connect';

var stateToComputed = (state) => {
  return {
    
  };
};

var dispatchToActions = (dispatch) => {
  return {
    
  };
};

const ItemComponent = Ember.Component.extend({
  tagName: 'li',
  
  redux: Ember.inject.service(),
  
  layout: hbs`
	  {{index}}
    <input value={{item.name}} oninput={{action 'change'}} />
    `,
  
  actions: {
    change(event) {
      let new_name = event.target.value
      let index = this.get('index')
      this.get('redux').dispatch({
        type: 'UPDATE',
        index,
        name: new_name
      })
    }
  }
});

export default connect(stateToComputed, dispatchToActions)(ItemComponent);

components.my-list.js

import Ember from 'ember';
import hbs from 'htmlbars-inline-precompile';
import connect from 'ember-redux/components/connect';

var stateToComputed = (state) => {
  return {
    list: state.items
  };
};

var dispatchToActions = (dispatch) => {
  return {
    add: () => dispatch({type: 'ADD'})
  };
};

const ListComponent = Ember.Component.extend({
  layout: hbs`
    <h1>MY LIST</h1>
    <p {{action 'add'}}>ADD</p>
		<ul>
    	{{#each list as |item index|}}
      	{{my-item item=item index=index}}
    	{{/each}}
		</ul>
		<h2>shadow items</h2>
		<ul>
    	{{#each list as |item index|}}
      	{{my-item item=item index=index}}
    	{{/each}}
		</ul>
  `
});

export default connect(stateToComputed, dispatchToActions)(ListComponent);

controllers.application.js

import Ember from 'ember';

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

reducers.index.js

let items = ((state, action) => {
  switch (action.type) {
    case 'ADD':
      return [
        ...state,
        {
          id: state.length,
          name: 'unknown item'
        }
      ];
      break;
      
    case 'UPDATE':
      console.log('UPDATE name: '+action.name);
      
      return [
        ...state.slice(0, action.index),
        {
          ...state[action.index],
          name: action.name
        },
        ...state.slice(action.index +1)
      ];
      break;
    
    default: 
      return state || [];
      break;
  }
});

export default {
    items
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{my-list}}
<br>
<br>

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2"
  },
  "addons": {
  	"ember-redux": "2.1.0"
  }
}