Function niceNumericDomain

packages/core/src/scales/domain.ts:158–170

(
  domain: [number, number],
  count = 5
)

};

export const niceNumericDomain = (
  domain: [number, number],
  count = 5
): [number, number] => {
  const [min, max] = domain;
  const step = tickStep(min, max, count);

  if (step === 0) {
    return expandDegenerateDomain(domain);
  }

  return [Math.floor(min / step) * step, Math.ceil(max / step) * step];
};