title: Swift language NSClassFromString
body: <p>How to achieve <a href="http://en.wikipedia.org/wiki/Reflection_%28computer_programming%29#Objective-C">reflection</a> in Swift Language?</p>
  
  <p>How can I instantiate a class </p>
  
  <pre><code>[[NSClassFromString(@"Foo") alloc] init];
  </code></pre>