old_contents: function ComputerLogic() {
  }
  
  ComputerLogic.prototype.pickRandomSpace = function(ui, gameBoard, marker) {
    var space = gameBoard.chooseAvailableSpace();
    ui.displayMarker(space, marker);
    gameBoard.updateBoard(space, marker);
    ui.disableClickWithID(space);
  }
  
  module.exports = ComputerLogic;
  
new_contents: function ComputerLogic() {
  }
  //change
  ComputerLogic.prototype.pickRandomSpace = function(ui, gameBoard, marker) {
    var space = gameBoard.chooseAvailableSpace();
    ui.displayMarker(space, marker);
    gameBoard.updateBoard(space, marker);
    ui.disableClickWithID(space);
  }
  
  module.exports = ComputerLogic;
  
subject: change to ComputerLogic