Function formatTooltipAxis

src/components/formatTooltip.ts:159–177

(params: TooltipParams[])

 * Candlestick series show O/H/L/C values with arrow and percentage change.
 */
export function formatTooltipAxis(params: TooltipParams[]): string {
  if (params.length === 0) return '';

  const xText = `x: ${formatNumber(params[0].value[0])}`;
  const header = `<div style="margin:0 0 6px 0;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap;">${escapeHtml(
    xText,
  )}</div>`;

  const rows = params
    .map((p) => {
      if (isCandlestickValue(p.value)) {
        return formatCandlestickRowHtml(p);
      }
      return formatRowHtml(p, formatNumber(p.value[1]));
    })
    .join('<div style="height:4px;"></div>');

  return `${header}${rows}`;
}