Function pxToPercent

src/components/createDataZoomSlider.ts:130–135

(dxPx: number)

  };

  const pxToPercent = (dxPx: number): number | null => {
    const w = getTrackWidthPx();
    if (w === null) return null;
    const p = (dxPx / w) * 100;
    return Number.isFinite(p) ? p : null;
  };

  const setPointerCaptureBestEffort = (el: Element, pointerId: number): void => {
    try {