How to bind to radio buttons in angular2 beta 6
<p>How does one achieve radio button binding in beta 6?</p>

<p>I found a great plnkr for beta 0 (see <a href="http://plnkr.co/edit/aggee6An1iHfwsqGoE3q?p=preview" rel="noreferrer">http://plnkr.co/edit/aggee6An1iHfwsqGoE3q?p=preview</a>), but when I try to update it to beta 6 it breaks horribly (see <a href="http://plnkr.co/edit/voU933?p=preview" rel="noreferrer">http://plnkr.co/edit/voU933?p=preview</a>).</p>

<p>I took a look at the commit that added built-in support for radio options (see <a href="https://github.com/angular/angular/commit/e725542" rel="noreferrer">https://github.com/angular/angular/commit/e725542</a>), which gives this example</p>

<pre><code>@Component({
  template: `
    &lt;input type="radio" name="food" [(ngModel)]="foodChicken"&gt;
    &lt;input type="radio" name="food" [(ngModel)]="foodFish"&gt;
  `
})
class FoodCmp {
  foodChicken = new RadioButtonState(true, "chicken");
  foodFish = new RadioButtonState(false, "fish");
}
</code></pre>

<p>but my attempts to make that work have so far ended up quite like my failed plnkr.</p>