Number-field

components.my-component.js

import Ember from 'ember';

export default Ember.TextField.extend({
	number: '',
	input(event) {
		let value = event.target.value;
		this.set('number', value.replace(/,/g, ''));
  },
 	focusOut(event) {
		let value = event.target.value.replace(/,/g, '');		
		let length = value.length;
		 value = Number(value).toFixed(2).replace(/./g, (c, i, a) => {
    	return i && c !== "." && ((a.length - i) % 3 === 0) ? ',' + c : c;
		});
		this.set('value', value);
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{number}}
<hr>
{{my-component number=number}}
{{outlet}}
<br>
<br>

twiddle.json

{
  "version": "0.10.6",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.9.0",
    "ember-data": "2.9.0",
    "ember-template-compiler": "2.9.0",
    "ember-testing": "2.9.0"
  },
  "addons": {}
}