Function isCandlestickValue

src/components/formatTooltip.ts:59–63

(
  value: readonly [number, number] | readonly [number, number, number, number, number],
)

}

function isCandlestickValue(
  value: readonly [number, number] | readonly [number, number, number, number, number],
): value is readonly [number, number, number, number, number] {
  return value.length === 5;
}

function formatPercentChange(open: number, close: number): string {
  if (!Number.isFinite(open) || !Number.isFinite(close)) return EM_DASH;