title: Purpose of Array "Join" function in Swift
body: <p>What is the use of <code>join()</code> in arrays? </p>
  
  <p>In other languages, it is used to join elements of array into string. For example,<br>
  <a href="http://www.ruby-doc.org/core-2.1.2/Array.html#method-i-join" rel="nofollow noreferrer">Ruby Array.join</a></p>
  
  <p>I've asked some question about join() in 
  <a href="https://stackoverflow.com/questions/24820446/swift-array-join-exc-bad-access">Swift Array join EXC_BAD_ACCESS</a></p>