title: How to destroy a singleton in Swift
body: <h1>How to destroy a singleton in Swift?</h1>
  
  <p>I create a singleton like this:</p>
  
  <pre><code>class MyManager  {
      private static let sharedInstance = MyManager()
      class var sharedManager : MyManager {
          return sharedInstance
      }
  }
  </code></pre>