ZoolWay/app.html

## app.html
<template>
  <require from="my-comp"></require>

  <h1>Custom Component with boolean attribute binding</h1>

  <h2>Using a string attribute:</h2>
  <div>
    <my-comp value="true"></my-comp>
    <my-comp value="false"></my-comp>
  </div>

  <h2>Using a binding to an expression</h2>
  <div>
    <my-comp value.one-time="true"></my-comp>
    <my-comp value.one-time="false"></my-comp>
  </div>

</template>

## app.js
import { bindable, observable } from 'aurelia-framework'

export class App {
  message = 'Hello World';

  @observable
  buttons = [];

  getNewEntry(){
    let s = 'entry #' + Math.floor((Math.random() * 1000) + 1);
    return s;
  }
  add() {
    console.log('ADD');
    this.buttons.push(this.getNewEntry());
    console.log('ADDED');
  }
  prepend() {
    this.buttons.splice(0, 0, this.getNewEntry())
  }
  removeFromTwo() {
    console.log('REMOVE');
    this.buttons.splice(2, 1);
    //this.isButton4Enabled = !this.isButton4Enabled;
    console.log('REMOVED');
  }
}

## index.html
<!doctype html>
<html>
  <head>
    <title>Aurelia</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
  </head>
  <body aurelia-app>
    <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>

## my-comp.html
<template>
  <div style="border:1px dashed blue; margin: 1em;">
    <span>Bound to value '${value}' which is of type '${valueType}', comparing to boolean-true evaluates to '${value == true}' or with 3= '${value === true}'</span>
  </div>
</template>

## my-comp.js
import { bindable } from 'aurelia-framework'

export class MyComp {
  @bindable
  value = null;
  valueType = 'undetected';

  valueChanged(newValue, oldValue) {
    console.debug('value changed from', oldValue, 'to', newValue);
    this.valueType = typeof(newValue);
  }
}
	<template>
	<require from="my-comp"></require>

	<h1>Custom Component with boolean attribute binding</h1>

	<h2>Using a string attribute:</h2>
	<div>
	<my-comp value="true"></my-comp>
	<my-comp value="false"></my-comp>
	</div>

	<h2>Using a binding to an expression</h2>
	<div>
	<my-comp value.one-time="true"></my-comp>
	<my-comp value.one-time="false"></my-comp>
	</div>

	</template>
	import { bindable, observable } from 'aurelia-framework'

	export class App {
	message = 'Hello World';

	@observable
	buttons = [];

	getNewEntry(){
	let s = 'entry #' + Math.floor((Math.random() * 1000) + 1);
	return s;
	}
	add() {
	console.log('ADD');
	this.buttons.push(this.getNewEntry());
	console.log('ADDED');
	}
	prepend() {
	this.buttons.splice(0, 0, this.getNewEntry())
	}
	removeFromTwo() {
	console.log('REMOVE');
	this.buttons.splice(2, 1);
	//this.isButton4Enabled = !this.isButton4Enabled;
	console.log('REMOVED');
	}
	}
	<!doctype html>
	<html>
	<head>
	<title>Aurelia</title>
	<meta name="viewport" content="width=device-width, initial-scale=1">
	</head>
	<body aurelia-app>
	<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>
	<template>
	<div style="border:1px dashed blue; margin: 1em;">
	<span>Bound to value '${value}' which is of type '${valueType}', comparing to boolean-true evaluates to '${value == true}' or with 3= '${value === true}'</span>
	</div>
	</template>
	import { bindable } from 'aurelia-framework'

	export class MyComp {
	@bindable
	value = null;
	valueType = 'undetected';

	valueChanged(newValue, oldValue) {
	console.debug('value changed from', oldValue, 'to', newValue);
	this.valueType = typeof(newValue);
	}
	}