pgengler

let a = { foo: 'bar' };
let [b] = a;
// => Uncaught TypeError: a is not iterable

let c = { foo: { bar: 'baz' } };
let [d] = c.foo;
// => Uncaught TypeError: undefined is not a function

pgengler

import Controller from '@ember/controller';
import { action } from '@ember/object';
import { inject as service } from '@ember/service';

export default class extends Controller {
  @service router;
  
  @action
  redirectWithTransitionToRoute() {
    this.transitionToRoute('b');

pgengler

import Controller from '@ember/controller';
import { tracked as glimmerTracked } from '@glimmer/tracking';
import { tracked as builtinsTracked } from 'tracked-built-ins';
import { action, computed } from '@ember/object';

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';

  untrackedArray = [];
  @glimmerTracked plainTrackedArray = [];

pgengler

import Controller from '@ember/controller';

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';
}

pgengler

import Component from '@glimmer/component';

export default class extends Component {
}

pgengler

import Component from '@glimmer/component';
import { action } from '@ember/object';
import { inject as service } from '@ember/service';

export default class extends Component {
  @service router;
  
  @action async delete() {
    const a = this.args.a;
    const b = a.b;