New Twiddle

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  myBool: false,
  
  actions: {
    toggleBool: function() {
      this.set('myBool', !this.get('myBool'));
    }
  }
});

application.template.hbs

{{#if myBool}}
	Controller's bool is true
{{else}}
	Controller's bool is false
{{/if}}

{{my-comp1 myBool=myBool toggleBool="toggleBool"}}

{{my-comp2 myBool=myBool toggleBool="toggleBool"}}

my-comp1.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  actions: {
    toggleBool: function() {
      this.sendAction('toggleBool');
    }
  }
});

my-comp1.template.hbs

{{#if myBool}}
	Comp 1's bool is true
{{else}}
	Comp 1's bool is false
{{/if}}

<button {{action "toggleBool"}}>Toggle Bool</button>

my-comp2.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  actions: {
    toggleBool: function() {
      this.sendAction('toggleBool');
    }
  }
});

my-comp2.template.hbs

{{#if myBool}}
	Comp 2's bool is true
{{else}}
	Comp 2's bool is false
{{/if}}


<button {{action "toggleBool"}}>Toggle Bool</button>

twiddle.json

{
  "version": "0.4.17",
  "EmberENV": {
    "FEATURES": {}
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.2.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember-template-compiler.js"
  }
}