title: Swift 2 - Merge two arrays
body: <p>I am trying to merge two array:</p>
  
  <p>array 1
  <code>[["aaa","111"],["bbb","222"],["ccc","333"]]</code></p>
  
  <p>array 2
  <code>[["ddd","444"],["eee","555"],["fff","666"]]</code></p>
  
  <p>What I want to achieve is to have a single array with the values respecting the array positions such as:</p>
  
  <p>merged array
  <code>[["aaa","111"],["ddd","444"],["bbb","222"],["eee","555"],["ccc","333"],["fff","666"]]</code></p>
  
  <p>How could I do this using Swift 2</p>