Swift mastermind -


i try make mastermind in swift can't each digit of random number using index check if found number of code. tried it's not works.. :

import uikit  class viewcontroller: uiviewcontroller {      @iboutlet weak var textfield: uitextfield!     @iboutlet weak var textview: uitextview!      var code = string(arc4random_uniform(9000) + 1000)      override func viewdidload() {         super.viewdidload()         println(code)     }      override func didreceivememorywarning() {         super.didreceivememorywarning()         // dispose of resources can recreated.     }      override func touchesbegan(touches: nsset, withevent event: uievent) {         self.view.endediting(true)     }      @ibaction func senddidpressed(sender: anyobject) {         var find = 0          (var = 0; < 4; i++) {              var number = textfield.text             var numberincode = map(code) { string($0) }              if contains(numberincode, string(find)) {                 find++             }              self.textview.text = "\(self.textfield.text): bien placées: \(string(find))"         }     }      @ibaction func resetcode(sender: anyobject) {      } }

i need help

turn random number array of characters, 

var code = (arc4random_uniform() % 9000 + 1000)  //e.g. 1245 var codeasarray = array(string(code))    //e.g. [1, 2, 4, 5]  (var = 0; < 4; i++) {    // var number = textfield.text      println(codeasarray[i]) //is swift character }

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