title: Wait for JS Callback After evaluateJavaScript
body: <p>I am trying to wait for javascript callback, however, the swift callback is being called before the javascript callback. How can I wait for JS callback?</p>
  
  <pre><code>AppWebView.evaluateJavaScript("$('.loading-gif').removeClass('hide', function() { return true } );") { (Any, Error) in
  \\ .loading-gif successfully hided.
  }
  </code></pre>