title: change event on input in angular 2 is not working
body: <p>I want when user typing in input execute a function,like this : </p>
  
  <pre><code>&lt;input
     id="cell"
     type="text"
     name="cell"
     ngControl="cell"
     (change)="topersian($event)"
  &gt;
  
  topersian($event){
    $event.currentTarget.value = $event.currentTarget.value.toPersianNumber();
  }
  </code></pre>
  
  <p>I don't want to use <code>(keypress)</code> or <code>(keyup)</code> because user can see the English number.</p>
  
  <p>I use <code>[(ngModelChange)]</code> but can't access to <code>$event</code>, just get value!
  how to fix this problem ? or anybody have A better solution?</p>