how make statement if in xcode to change value

@State var password: String = ""
@State var passwordConfirm: String = ""
@State private var buttonDisabled = true


  if password == passwordConfirm{
                       self.buttonDisabled = false
                   }else{
                       self.buttonDisabled = true
                   }

i want change value buttonDisabled with condition if,when password and passwordConfirm same, pls help me