title: Angular2 ElementRef nativeElement check if element is disabled
body: <p>I have this in my directive, named 'bgcolor': </p>
  
  <pre><code>export class BgColorDirective {
      constructor(el: ElementRef) {
          console.log(el.nativeElement.disabled); // show "false"
          if (el.nativeElement.disabled) {
              el.nativeElement.style.backgroundColor = '#5789D8';
              el.nativeElement.style.color = '#FFFFFF';
          }
      }
  </code></pre>
  
  <p>In my template, I have :</p>
  
  <pre><code>&lt;button (click)="submitData()" [disabled]="true" bgcolor [routerLink]="['Onboarding']"&gt; &lt;/button&gt;
  </code></pre>
  
  <p>I don't understant why <code>el.nativeElement.disabled</code> returns <code>false</code></p>