title: Can't store value of NSMutableArray in NSUserdefault in swift
body: <p>Hi I have a <code>NSMutablearray</code> and i am trying to store this array in <code>NSUserdefault</code> but I am getting error while storing it. </p>
  
  <pre><code>var mutableArray: [(name: String, id: String)] = []
  
  NSUserDefaults.standardUserDefaults().setObject(mutableArray, forKey: "arrayKey")
  </code></pre>
  
  <p>Cannot convert value of type <code>'[(name: String, id: String)]</code>' to expected argument type <code>'AnyObject?</code>.</p>
  
  <p>Thanx :)</p>