ot;val&quot; aria-checked=&quot;true&quot;&gt;&lt;/custom-checkbox&gt;
&lt;custom-radio-button ng-value=&quot;val&quot; aria-checked=&quot;true&quot;&gt;&lt;/custom-radio-button&gt;
</code></pre>
<h2 id="ngdisabled">ngDisabled</h2>

<p>The <code>disabled</code> attribute is only valid for certain elements such as <code>button</code>, <code>input</code> and
<code>textarea</code>. To properly disable custom element directives such as <code>&lt;md-checkbox&gt;</code> or <code>&lt;taco-tab&gt;</code>,
using ngA