Dynamic key validation

controllers.application.js

import Em from 'ember';

//Ember Computed Factory Macro
	function is(type, dependentKey){
    console.log(type);
    console.log(dependentKey);

  	let computed = Ember.A();
    for(var i=0; i<=type.length; i++){
      switch(type)
      {
          case "numeric":
            computed.push(Ember.computed(dependentKey, function(){ 
              return Ember.$.isNumeric(this.get(dependentKey));
            }));
          break;
        	case "notEmpty":
          	 computed.push(Ember.computed.notEmpty(dependentKey));
         	break;
          default:
            throw new Error("error");
          break;
      }
    }
  	return Ember.computed(function() {
    	for(let i=0; i<=computed.length; i++){
      	this.computed[i]();
      }
    });
  }

//is(['numeric', 'text', 'notEmpty'], 'text');

export default Em.Controller.extend({
	useAdditionalValidators: false,
  text: '',
  
  hasText: is("numerisc", 'text'),
  isNumber: is('numeric', 'text'),
  
  validators: Em.computed('useAdditionalValidators', function() {
    if(this.get('useAdditionalValidators')) {
      return ['hasText', 'isNumber'];
    } else {
      return ['hasText'];
    }
  }),
  
  //TODO: create something that allows us to remove 'hasText', 'isNumber' keys
  isValid: Em.computed('validators.[]', 'hasText', 'isNumber', function() {
    return this.get('validators').every(v => this.get(v) === true);
  })
});

templates.application.hbs

<h3>Validators</h3>

useAdditionalValidators: {{input type='checkbox' checked=useAdditionalValidators}}

<br /><br />

{{#each validators as |validator|}}
  [{{validator}}]
{{/each}}

<h3>Input:</h3>

{{input value=text}}

{{#if isValid}}
	<h1 style="color: darkgreen">Valid :-)</h1>
{{else}}
  <h1 style="color: red">Invalid :-(</h1>
{{/if}}

twiddle.json

{
  "version": "0.10.7",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.0",
    "ember-data": "2.10.0",
    "ember-template-compiler": "2.10.0",
    "ember-testing": "2.10.0"
  },
  "addons": {}
}