title: Combining Two Conditions in NSPredicate
body: <p>How do you combine two conditions in <code>NSPredicate</code>? I am using the following statement and I would like to add another condition that compares the the password with the contents of a textfield using <strong>AND</strong>:</p>
  
  <pre><code>request.predicate = NSPredicate(format: "username = %@", txtUserName.text!)
  </code></pre>