title: Angular ng-disabled one time binding with function
body: <p>one time binding for ng-disabled expression can be added like below: It works fine. No watcher is alive once isDisabled is resolved.</p>
  
  <pre><code>&lt;text-area ng-disabled="::isDisabled"&gt;&lt;/text-area&gt;
  </code></pre>
  
  <p>How can we add one way binding for ng-disabled with function. Tried like below but watcher was still present on the element.</p>
  
  <pre><code>&lt;text-area ng-disabled="::isReadOnly(name)"&gt;&lt;/text-area&gt;
  </code></pre>