func doOperation(_data)
  
  switch(Operation)
    case 0:
      println(Array, '.append(', X, ')')
      event(onOperation)
    case 1:
      println(Array, '.extend(', X, ')')
      event(onOperation)
    case 2:
      println(Array, '.insert(', X, ', ', i, ')')
      event(onOperation)
    case 3: 
      println(Array, '.remove(', X, ')')
      event(onOperation)
    case 4:
      event(onOperation, Array + '.pop(' + (isndef(i)?i:'') + ')')
    case 5:
      event(onOperation, Array + '.count(' + X + ')')
    case 6:
      println(Array, '.reverse()')
      event(onOperation)
    case 7:
      println(Array, '.index(', X, ')')
  end
end