title: Retrieve 1 specific key from several NSArrays and add them together
body: <p>In my app, I am needing to loop through each <code>NSArray</code>, get the <code>NSInteger</code> associated with the key 'people' in the <code>NSArray</code>, and then add them all together.  What would be a good starting point for first retrieving each specific <code>NSInteger</code> from each <code>NSArray</code>?</p>
  
  <p>The array in question returns like this in console.  </p>
  
  <pre><code>(
      "&lt;Prayers:DDomBXIONY:(null)&gt; {\n    Anonymous = 1;\n    DeviceID = 123;\n    FirstName = Name;\n    LastName = Name;\n    Location = HI;\n    PrayerWarriors = 8;\n    Request = Hi;\n    Title = Hi;\n    UserId = RtXN6QZsgaIiPw4SjFWGtkxXx;\n    dateMade = \"Jan_09_2015\";\n}"
  )
  </code></pre>
  
  <p>Basically just need to retrieve NSInteger from each PrayerWarriors key, and add them all together.</p>
  
  <pre><code>(
      "&lt;Prayers:DDomBXIONY:(null)&gt; {\n    Anonymous = 1;\n    DeviceID = 123;\n    FirstName = Name;\n    LastName = Name;\n    Location = HI;\n    PrayerWarriors = 8;\n    Request = Hi;\n    Title = Hi;\n    UserId = RtXN6QZsgaIiPw4SjFWGtkxXx;\n    dateMade = \"Jan_09_2015\";\n}",
      "&lt;Prayers:yG7GC4bCIH:(null)&gt; {\n    Anonymous = 1;\n    DeviceID = 123;\n    FirstName = Name;\n    LastName = Name;\n    Location = bye;\n    PrayerWarriors = 0;\n    Request = bye;\n    Title = bye;\n    UserId = RtXN6QZsgaIiPw4SjFWGtkxXx;\n    dateMade = \"Jan_09_2015\";\n}"
  )
  </code></pre>