loaded02/app.html

## app.html
<template>
  <require from="./child"></require>

  <h1>Aurelia has been loaded</h1>
  <p>Parent Array: ${getArray()}</p>
  <child array.two-way="parentArray"></child>
</template>

## app.js
export class App {
  parentArray = [
    { id: 1, progress: 15 },
    { id: 2, progress: 0 }
    ]

  constructor() {
    setTimeout(() => {
      console.log("changing from parent...");
      //this.parentArray.push({ id: 3, progress: 50 });
      this.parentArray = [
    { id: 4, progress: 23 },
    { id: 5, progress: 32 }
    ]
    }, 2000)
  }

  getArray() {
    return JSON.stringify(this.parentArray);
  }
}

## child.html
<template>
  Child Array: ${getArray()}
</template>

## child.js
import {bindable, BindingEngine, bindingMode} from 'aurelia-framework';
import {inject} from 'aurelia-dependency-injection';

@inject(BindingEngine)
export class Child {
  @bindable({defaultBindingMode: bindingMode.twoWay}) array = []

  constructor(b) {
    this.bindingEngine = b;
  }

  bind() {
    this.subscription = this.bindingEngine
    .collectionObserver(this.array)
    .subscribe(this.arrayBlaChanged.bind(this));
  }

  arrayChanged(newValue, oldValue) {
    console.log(`array changed from: ${JSON.stringify(oldValue)} to:${JSON.stringify(newValue)}`)

    if (this.subscription) {
      this.subscription.dispose();
    }
    this.subscription = this.bindingEngine
    .collectionObserver(this.array)
    .subscribe(this.arrayBlaChanged.bind(this));
  }

  getArray() {
    return JSON.stringify(this.array);
  }

  arrayBlaChanged(splices) {
    console.log(`array Bla changed from: ${JSON.stringify(splices)}`)
  }
}

## index.html
<!doctype html>
<html>
  <head>
    <title>Aurelia</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
  </head>
  <body aurelia-app="main">
    <h1>Loading...</h1>

    <script src="https://jdanyow.github.io/rjs-bundle/node_modules/requirejs/require.js"></script>
    <script src="https://jdanyow.github.io/rjs-bundle/config.js"></script>
    <script src="https://jdanyow.github.io/rjs-bundle/bundles/aurelia.js"></script>
    <script src="https://jdanyow.github.io/rjs-bundle/bundles/babel.js"></script>
    <script>
      require(['aurelia-bootstrapper']);
    </script>
  </body>
</html>

## main.js
export function configure(aurelia) {
  aurelia.use
    .standardConfiguration()
    .developmentLogging();

  aurelia.start().then(() => aurelia.setRoot());
}
	<template>
	<require from="./child"></require>

	<h1>Aurelia has been loaded</h1>
	<p>Parent Array: ${getArray()}</p>
	<child array.two-way="parentArray"></child>
	</template>
	export class App {
	parentArray = [
	{ id: 1, progress: 15 },
	{ id: 2, progress: 0 }
	]

	constructor() {
	setTimeout(() => {
	console.log("changing from parent...");
	//this.parentArray.push({ id: 3, progress: 50 });
	this.parentArray = [
	{ id: 4, progress: 23 },
	{ id: 5, progress: 32 }
	]
	}, 2000)
	}

	getArray() {
	return JSON.stringify(this.parentArray);
	}
	}
	import {bindable, BindingEngine, bindingMode} from 'aurelia-framework';
	import {inject} from 'aurelia-dependency-injection';

	@inject(BindingEngine)
	export class Child {
	@bindable({defaultBindingMode: bindingMode.twoWay}) array = []

	constructor(b) {
	this.bindingEngine = b;
	}

	bind() {
	this.subscription = this.bindingEngine
	.collectionObserver(this.array)
	.subscribe(this.arrayBlaChanged.bind(this));
	}

	arrayChanged(newValue, oldValue) {
	console.log(`array changed from: ${JSON.stringify(oldValue)} to:${JSON.stringify(newValue)}`)

	if (this.subscription) {
	this.subscription.dispose();
	}
	this.subscription = this.bindingEngine
	.collectionObserver(this.array)
	.subscribe(this.arrayBlaChanged.bind(this));
	}

	getArray() {
	return JSON.stringify(this.array);
	}

	arrayBlaChanged(splices) {
	console.log(`array Bla changed from: ${JSON.stringify(splices)}`)
	}
	}
	<!doctype html>
	<html>
	<head>
	<title>Aurelia</title>
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
	</head>
	<body aurelia-app="main">
	<h1>Loading...</h1>

	<script src="https://jdanyow.github.io/rjs-bundle/node_modules/requirejs/require.js"></script>
	<script src="https://jdanyow.github.io/rjs-bundle/config.js"></script>
	<script src="https://jdanyow.github.io/rjs-bundle/bundles/aurelia.js"></script>
	<script src="https://jdanyow.github.io/rjs-bundle/bundles/babel.js"></script>
	<script>
	require(['aurelia-bootstrapper']);
	</script>
	</body>
	</html>
	export function configure(aurelia) {
	aurelia.use
	.standardConfiguration()
	.developmentLogging();

	aurelia.start().then(() => aurelia.setRoot());
	}