Calender

function getListData(value) {
  let listData;
  switch (value.date()) {
    case 8:
      listData = [
        ..........
        ..........
      ];
      break;
    case 10:
      listData = [
        ..........
        ..........
      ];
      break;
    default:
  }
  return listData || [];
}

function dateCellRender(value) {
  const listData = getListData(value);
  return (
    <ul className="events">
      {listData.map(item => (
       ..........
        ..........
      ))}
    </ul>
  );
}

function getMonthData(value) {
  if (value.month() === 8) {
    return 1394;
  }
}
function monthCellRender(value) {
  const num = getMonthData(value);
  return num ? (
   ..........
  ..........
  ) : null;
}
ReactDOM.render(
  <Calendar dateCellRender={dateCellRender} monthCellRender={monthCellRender} />,
  mountNode,
);