Method get

handsontable/src/dataMap/dataMap.ts:813–880

* Returns single value from the data array. * * @param {number} row Visual row index. * @param {number} prop The column property. * @returns {*}

(row: number, prop: string | number)

   * @returns {*}
   */
  get(row: number, prop: string | number) {
    const physicalRow = this.hot!.toPhysicalRow(row);

    let dataRow: Record<string | number, unknown> = this.dataSource![physicalRow] as Record<string | number, unknown>;
    // TODO: To remove, use 'modifyData' hook instead (see below)
    const modifiedRowData = this.hot!.runHooks('modifyRowData', physicalRow);

    dataRow = typeof modifiedRowData !== 'number' ? modifiedRowData as Record<string | number, unknown> : dataRow;
    //

    const { dataDotNotation } = this.hot!.getSettings();
    let value: unknown = null;

    // try to get value under property `prop` (includes dot)
    if (dataRow && hasOwnProperty(dataRow, prop)) {
      value = dataRow[prop];

    } else if (dataDotNotation && typeof prop === 'string' && prop.indexOf('.') > -1) {
      let out: Record<string, unknown> = dataRow;

      if (!out) {
        return null;
      }

      const sliced = prop.split('.');

      for (let i = 0, ilen = sliced.length; i < ilen; i++) {
        out = out[sliced[i]] as Record<string, unknown>;

        if (typeof out === 'undefined') {
          return null;
        }
      }

      value = out;

    } else if (typeof prop === 'function') {
      value = (prop as (row: unknown) => unknown)(this.dataSource!.slice(physicalRow, physicalRow + 1)[0]);
    }

    const visualColumnIndex = this.propToCol(prop);
    const physicalColumn = typeof visualColumnIndex === 'number'
      ? this.hot!.toPhysicalColumn(visualColumnIndex)
      : null;

    if (isUnsignedNumber(physicalRow) && isUnsignedNumber(physicalColumn)) {
      value = getValueGetterValue(
        value,
        this.metaManager!.getCellMeta(physicalRow, physicalColumn, {
          visualRow: row,
          visualColumn: visualColumnIndex,
          skipMetaExtension: true
        })
      );
    }

    if (this.hot!.hasHook('modifyData')) {
      const valueHolder = createObjectPropListener(value);