Why Angular method binding firing continiously? : <pre><code>@Component({
  selector: 'calc',
  template: '&lt;p *ngIf="isCalculatable()"&gt;&lt;/p&gt;'
})
export class CalcComponent {
   isCalculatable(){
       console.log("yes");
       return true;
   }
}
</code></pre>

<p>When I use this component <code>&lt;calc&gt;&lt;/calc&gt;</code>, it writes "yes" to console continiously. I mean <code>isCalculatable()</code> method firing. So I am using this method so many times in my applicaitons. May this stuation be performance issue?</p>
