Function getTitle

src/ui-react-dom-charts/components/CartesianChart.tsx:455–470

(
  summaryById: SummaryById,
  cellIdType: 'xCellId' | 'yCellId',
)

  yMax === boundYMax;

const getTitle = (
  summaryById: SummaryById,
  cellIdType: 'xCellId' | 'yCellId',
): string => {
  const titles: string[] = [];
  arrayForEach(objValues(summaryById), (summary) => {
    const title =
      cellIdType == 'yCellId'
        ? (summary.yLabel ?? summary.yCellId)
        : summary.xCellId;
    if (!isNullish(title) && !arrayHas(titles, title)) {
      arrayPush(titles, title);
    }
  });
  return arrayIsEmpty(titles) ? '' : arrayJoin(titles, TITLE_SEPARATOR);
};

const getAxisBounds = (
  [xMin, xMax, yMin, yMax]: Bounds,