title: What's the different between these properties?
body: <p>I have created a class <code>RootView</code> with two properties, declared in different ways. Now I want to know what the difference between those two declarations is?</p>
  
  <pre><code>class RootView: UIViewController {
  
      // MARK: - Variables
      var rightMenu: RightMenu = RightMenu()
      let right = RightMenu()
  
  }
  </code></pre>
  
  <p>Please guide me about difference between <code>right</code> and <code>rightMenu</code>?</p>