Function broadcast

src/interaction/createChartSync.ts:19–25

(sourceChart: ChartGPU, x: number | null)

  const unsubscribeFns: Array<() => void> = [];

  const broadcast = (sourceChart: ChartGPU, x: number | null): void => {
    for (const chart of charts) {
      if (chart === sourceChart) continue;
      if (chart.disposed) continue;
      chart.setCrosshairX(x, connectionToken);
    }
  };

  for (const chart of charts) {
    if (chart.disposed) continue;