Function normalizeSampling

src/config/OptionResolver.ts:499–505

(value: unknown)

};

const normalizeSampling = (value: unknown): SeriesSampling | undefined => {
  if (typeof value !== 'string') return undefined;
  const v = value.trim().toLowerCase();
  return v === 'none' || v === 'lttb' || v === 'average' || v === 'max' || v === 'min' || v === 'ohlc'
    ? (v as SeriesSampling)
    : undefined;
};

const normalizeScatterMode = (value: unknown): NonNullable<ScatterSeriesConfig['mode']> | undefined => {
  if (typeof value !== 'string') return undefined;