Numbers-only input

components.numbers-only-input.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: '',
  
  actions: {
    onInput(value) {
      console.log(value);
      if (value.match(/[^\d]/)) {
        this.notifyPropertyChange('value');
        return;
      }
      this.onInput && this.onInput(value);
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  number: 123
});

templates.application.hbs

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

{{number}}
{{numbers-only-input value=number onInput=(action (mut number))}}

templates.components.numbers-only-input.hbs

<input value={{value}} oninput={{action "onInput" value="target.value"}} />

twiddle.json

{
  "version": "0.15.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.2.2",
    "ember-template-compiler": "3.2.2",
    "ember-testing": "3.2.2"
  },
  "addons": {
  }
}