how-to-pass-controller-observed-property-in-component

components.range-slider.js

import Ember from 'ember';

export default Ember.Component.extend({
 tagName:'',
currentValue:function(){  	
    return this.get('value');
}.property('value'),

minValue:function(){
    return this.get('min');
}.property('min'),

didRender:function(){
  	this._super(...arguments);
    console.log("Render component with currentValue="+this.get("currentValue")+" minValue="+this.get('minValue'));
}
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  currentVal:50,
  currentValChanged:function(){
    console.log("currentVal changed : "+this.get('currentVal'));    
	}.observes('currentVal'),
  actions: {
    changeCurrentVal(){      
      this.set('currentVal',Math.floor((Math.random() * 100) + 1));      
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<button type="button" {{action "changeCurrentVal"}}>ChangeCurrentVal</button>
{{range-slider min="0" max="100" step="1" value=currentVal}}
<br>
{{outlet}}
<br>
<br>

templates.components.range-slider.hbs

<br/>
Range Slider Component Controller Observed Property(currentVal) : {{value}}
{{yield}}

twiddle.json

{
  "version": "0.8.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "1.13.13",
    "ember-data": "2.5.2",
    "ember-template-compiler": "1.13.13"
  }
}