gokatz

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

export default Controller.extend({
	appName: tracked(),
	appName1: 'hello',
  
  computedName: computed('appName', function() {
  	return `Hello, ${this.appName}`;

gokatz

import Controller from '@ember/controller';

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

gokatz

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

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';
	arr = [{ a: 1 }, {a: 2}]

	@action
	test() {
  	let newArr = this.arr.rejectBy('a', 1);

gokatz

import Controller from '@ember/controller';

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

gokatz

import Component from '@glimmer/component';
import { action } from '@ember/object';
export default class extends Component {
  
  @action
  addElement() {
    this.args.testArray.pushObject("two");
  }
  
}

gokatz

import Component from '@ember/component';

export default Component.extend({
  name: 'Hello',
  test: 'test',
  
  test() {
   	console.log(this);
  	this.sendAction('test');
  }

gokatz

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

const reducer = (accumulator, currentValue) => accumulator + currentValue;

export default Controller.extend({
  appName: 'ETwiddle',
  arr: [1,2,3],
  
  total: computed('arr.length', function() {

gokatz

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

class Person {
  
  constructor(name) {
  	this.name = name;
  }

gokatz

import Component from '@glimmer/component';

export default class extends Component {
}

gokatz

import Component from '@glimmer/component';
import { tracked } from '@glimmer/tracking';

export default class extends Component {
  @tracked
  model = {
  	address: {}
  };
  
  save(model, event) {