money input

components.money-input.js

import Ember from 'ember';

export default Ember.TextField.extend({
  keyDown() {
    this.set('priorValue', this.$().val());
  },
 	input() {
    Ember.run.next(() => {
      if (!this.$().val().match(/^\d+$/)) {
		    this.set('value', this.get('priorValue'));
    	}
    });
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  inputValue: '',
  
  actions: {
    clearDat() {
      Ember.run.next(this, () =>
        this.set('inputValue', '')
      );
    },
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>

{{money-input
  id="my-money"
  class="form-control"
  placeholder="$"
  value=inputValue}}

{{outlet}}
<br>
<br>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}