Method formatTooltip

src/model/Series.ts:536–546

* Default tooltip formatter * * @param dataIndex * @param multipleSeries * @param dataType * @param renderMode valid values: 'html'(by default) and 'richText'. * 'html' is used for rendering tooltip in extra DOM form, and the result * string is used a

(
        dataIndex: number,
        multipleSeries?: boolean,
        dataType?: SeriesDataType
    )

     *        Notice: The override method can also return string
     */
    formatTooltip(
        dataIndex: number,
        multipleSeries?: boolean,
        dataType?: SeriesDataType
    ): ReturnType<DataFormatMixin['formatTooltip']> {
        return defaultSeriesFormatTooltip({
            series: this,
            dataIndex: dataIndex,
            multipleSeries: multipleSeries
        });
    }

    isAnimationEnabled(): boolean {
        const ecModel = this.ecModel;