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[
  {"name": "Afghanistan", "code": "AF"},
  {"name": "Åland Islands", "code": "AX"},
  {"name": "Albania", "code": "AL"},
  {"name": "Algeria", "code": "DZ"},
  {"name": "American Samoa", "code": "AS"},
  {"name": "AndorrA", "code": "AD"},
  {"name": "Angola", "code": "AO"},
  {"name": "Anguilla", "code": "AI"},
  {"name": "Antarctica", "code": "AQ"},

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import Controller from '@ember/controller';

export default class ApplicationController extends Controller {
  example = `This
message
seems
to
split
correctly`;
}

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  // Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions

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import Controller from '@ember/controller';
import EmberObject from '@ember/object';

const FOO = { bar: 'BAR' };

class Foobar extends EmberObject {
  baz = FOO.bar;
}

export default class ApplicationController extends Controller {

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import Component from '@glimmer/component';

export default class extends Component {

}

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import Controller from '@ember/controller';
import { tracked } from '@glimmer/tracking';
import { action, computed } from '@ember/object';

// Ember 3.18.1
export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle'; // NOT Tracked
  @computed('appName') // Dirty Dependancy
  get foo1() {
    return `${this.appName}-1`;

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import Controller from '@ember/controller';
import EmberObject, { action, computed, notifyPropertyChange } from '@ember/object';

let currentAutoTrackings = [];

function trackedData(key, initializer) {
  let values = new WeakMap();
  let autoTrackingData = new WeakMap();
  let hasInitializer = typeof initializer === 'function';
  

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import Controller from '@ember/controller';
import EmberObject, { action } from '@ember/object';

function trackedData(key, initializer) {
  let values = new WeakMap();
  let hasInitializer = typeof initializer === 'function';
  
  function getter(self) {
    let value;
    if (hasInitializer && !values.has(self)) {

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import Controller from '@ember/controller';
import EmberObject, { action, computed } from '@ember/object';

const PROPERTY_BAG = Symbol('PROPERTY_BAG');

function legacyTrackedVanilla(target, key, descriptor) {
  target[PROPERTY_BAG] = target[PROPERTY_BAG] ?? EmberObject.create();
  target[PROPERTY_BAG].set(key, descriptor.initializer?.());
  descriptor.get = function() {
    console.log(1); // NEVER CALLED

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  // Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions