title: Comparing of 'Class' with other 'Class' in Objective-C
body: <p>Does a comparable function to '<strong>isKindOfClass:</strong>' exist for comparing a 'Class' to another (i.e. without constructing an instance of either class). For example, given:</p>
  
  <pre><code>Class class = NSClassFromString(@"NSNumber");
  
  [NSNumber isKindOfClass:class]; // YES
  [NSString isKindOfClass:class]; // NO
  </code></pre>
  
  <p>Thanks!</p>