in src/converter/data/dataConverter.ts [486:508]
private getFormattedTooltip(series: IDataRepresentationSeries): string {
const { settings: { tooltip } } = series;
if (!tooltip.isShown) {
return undefined;
}
let tooltipLabel: string = series.tooltip || tooltip.label || "";
if (tooltip.showVariance) {
tooltipLabel += `${series.formattedVariance}`;
}
if (tooltip.showDate) {
tooltipLabel += ` change since ${series.formattedDate}`;
}
if (tooltip.showDateDifference) {
tooltipLabel += ` (${series.dateDifference} days ago)`;
}
return tooltipLabel;
}