Function getTimeTickLabel

src/ui-react-dom-charts/common/wilkinson.ts:277–315

(
  timestamp: number,
  ticks: number[],
)

};

export const getTimeTickLabel = (
  timestamp: number,
  ticks: number[],
): string => {
  const date = dateNew(timestamp);
  const year = dateGetUTCFullYear(date) + EMPTY_STRING;
  const month = getPadded(dateGetUTCMonth(date) + 1);
  const day = getPadded(dateGetUTCDate(date));
  const hour = getPadded(dateGetUTCHours(date));
  const minute = getPadded(dateGetUTCMinutes(date));
  const second = getPadded(dateGetUTCSeconds(date));
  const dateLabel = `${year}-${month}-${day}`;
  let minDiff = infinity;
  arrayForEach(ticks, (tick, index) => {
    if (index > 0) {
      minDiff = mathMin(minDiff, tick - ticks[index - 1]);
    }
  });
  minDiff =
    minDiff == infinity
      ? dateGetUTCHours(date) == 0 &&
        dateGetUTCMinutes(date) == 0 &&
        dateGetUTCSeconds(date) == 0
        ? DAY
        : dateGetUTCSeconds(date) == 0
          ? HOUR
          : SECOND
      : minDiff;

  return minDiff < MINUTE
    ? `${dateLabel} ${hour}:${minute}:${second}`
    : minDiff < DAY
      ? `${dateLabel} ${hour}:${minute}`
      : minDiff < MONTH
        ? dateLabel
        : minDiff < YEAR
          ? `${year}-${month}`
          : year;
};

const floorTime = (timestamp: number, [unit, step]: TimeInterval): number => {
  const date = dateNew(timestamp);