SirZach

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  actions: {
    swapByShift() {
      let objs = this.get('model');
      let first = objs.shiftObject();
      let second = objs.shiftObject();

SirZach

import Ember from 'ember';

export default Ember.Controller.extend({
  numbers:['1','2','3','4'],
  letters:['a','b','c','d']
});