Converting NSArray to NSMutableArray in Swift

Also just to convert NSArray to NSMutableArray in Swift:

 let name: NSArray = ["John","Jake","Tom"]

 var myNewName = NSMutableArray(array:name)

You are better off using this syntax to set the variables

if let tempNames: NSArray = NSUserDefaults.standardUserDefaults().arrayForKey("names") {
   names = tempNames.mutableCopy() as NSMutableArray
}