GavinJoyce

//Controller

import Em from 'ember';

function concatProperties(key1, key2) {
  return Em.computed(key1, key2, function() {
    return this.get(key1) + ' ' + this.get(key2);
  });
}

GavinJoyce

import Ember from 'ember';

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

GavinJoyce

import Em from 'ember';
import Metrics from 'myapp/models/metrics';

var FrontendStatsService = Em.Service.extend({
  stats: {},
  timings: {},

  start: function(key) {
    if(window.performance) {
      if(this.timings[key] === undefined) { //skip the first so we're not capturing data when loading the app

GavinJoyce

import Ember from 'ember';

//the foods array will concatinate, the colours are replaced

let Animal = Ember.Object.extend({
  concatenatedProperties: ['foods'],
  colours: ['white'],
  foods: ['milk']
});

GavinJoyce

with `react-native`:

npm set progress=false && rm -rf ~/.npm && rm -rf node_modules && npm cache clean && time npm install
npm install  83.72s user 26.03s system 100% cpu 1:49.32 total

npm set progress=true && rm -rf ~/.npm && rm -rf node_modules && npm cache clean && time npm install
npm install  199.30s user 27.32s system 91% cpu 4:08.29 total

--

GavinJoyce

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  
  myComponentName: null,
  
  actions: {
    registerComponent() {
      let template = Ember.Handlebars.compile('<b>First x-foo</b>');

GavinJoyce

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  
  myComponentName: null,
  
  actions: {
    registerComponent() {
      let template = Ember.Handlebars.compile('<b>First x-foo</b>');

GavinJoyce

import Ember from 'ember';

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

GavinJoyce

import Ember from 'ember';

export default Ember.Controller.extend({
  enabled: false,
  trueValue: 'T',
  falseValue: 'F'
});

GavinJoyce

import Ember from 'ember';

export default Ember.Controller.extend({
  enabled: false,
  items: ['a'],
  isNotEmpty: Ember.computed.notEmpty('items'),
  
  actions: {
    addItem: function() {
      this.get('items').pushObject('another');