title: How to get the key values from NSDictionary in Objective C?
body: <p>I have a Dictionary:</p>
  
  <pre><code>{
    "FirstName" : "Katie",
    "SecondName" : "Brown"
  }
  </code></pre>
  
  <p>How to get the key values "FirstName" and "SecondName" from the above dictionary</p>