title: Getter computed property vs. variable that returns a value
body: <p>Is there a difference between a getter computed property and variable that returns a value? E.g. is there a difference between the following two variables?</p>
  
  <pre><code>var NUMBER_OF_ELEMENTS1: Int {
      return sampleArray.count
  }
  
  var NUMBER_OF_ELEMENTS2: Int {
      get {
          return sampleArray.count
      }
  }
  </code></pre>