parents, or pass
<code>null</code> to the <code>link</code> fn if not found.</li>
</ul>
<h4 id="-controlleras-"><code>controllerAs</code></h4>
<p>Identifier name for a reference to the controller in the directive&#39;s scope.
This allows the controller to be referenced from the directive template. This is especially
useful when a directive is used as component, i.e. with an <code>isolate</code> scope. It&#39;s also possible
to use it in a directive without an <code>isolate</code> / <code>new</code> scope, b