Method getRange

handsontable/src/dataMap/dataMap.ts:1089–1125

* Returns data range as array. * * @param {object} [start] Start selection position. Visual indexes. * @param {object} [end] End selection position. Visual indexes. * @param {number} destination Destination of datamap.get. * @returns {Array}

(start: { row: number; col: number }, end: { row: number; col: number }, destination: number)

   * @returns {Array}
   */
  getRange(start: { row: number; col: number }, end: { row: number; col: number }, destination: number) {
    const output: unknown[][] = [];
    let r;
    let c;
    let row: unknown[];

    const maxRows = this.tableMeta.maxRows;
    const maxCols = this.tableMeta.maxCols;

    if (maxRows === 0 || maxCols === 0) {
      return [];
    }

    const getFn = destination === DataMap.DESTINATION_CLIPBOARD_GENERATOR ? this.getCopyable : this.get;

    const rlen = Math.min(Math.max((maxRows ?? Infinity) - 1, 0), Math.max(start.row, end.row));
    const clen = Math.min(Math.max((maxCols ?? Infinity) - 1, 0), Math.max(start.col, end.col));

    for (r = Math.min(start.row, end.row); r <= rlen; r++) {
      row = [];
      // We just store indexes for rows without headers.
      const physicalRow = r >= 0 ? this.hot!.toPhysicalRow(r) : r;

      for (c = Math.min(start.col, end.col); c <= clen; c++) {

        if (physicalRow === null) {
          break;
        }
        row.push(getFn.call(this, r, this.colToProp(c)));
      }
      if (physicalRow !== null) {
        output.push(row);
      }
    }

    return output;
  }

  /**
   * Return data as text (tab separated columns).