title: How to make a switch for an array?
body: <p>Here's my code:</p>
  
  <pre><code>var animalArray = ["cow","pig"]
  
  switch animalArray {
  case ["cow","pig"],["pig","cow"]:
      println("You Win!")
  default:
      println("Keep Trying")
  </code></pre>
  
  <p>I get the error: "Type 'Array' does not conform to protocol 'IntervalType'" for the line "case ["cow","pig"],["pig","cow"]:". What am I doing wrong? </p>