Function getDefaultLabel

src/chart/helper/labelHelper.ts:29–48

(
    data: SeriesData,
    dataIndex: number
)

 * @return label string. Not null/undefined
 */
export function getDefaultLabel(
    data: SeriesData,
    dataIndex: number
): string {
    const labelDims = data.mapDimensionsAll('defaultedLabel');
    const len = labelDims.length;

    // Simple optimization (in lots of cases, label dims length is 1)
    if (len === 1) {
        const rawVal = retrieveRawValue(data, dataIndex, labelDims[0]);
        return rawVal != null ? rawVal + '' : null;
    }
    else if (len) {
        const vals = [];
        for (let i = 0; i < labelDims.length; i++) {
            vals.push(retrieveRawValue(data, dataIndex, labelDims[i]));
        }
        return vals.join(' ');
    }
}

export function getDefaultInterpolatedLabel(
    data: SeriesData,