Method propToCol

handsontable/src/dataMap/dataMap.ts:292–309

* Translates property into visual column index. * * @param {string|number} prop Column property which may be also a physical column index. * @returns {string|number} Visual column index or passed argument.

(prop: string | number)

   * @returns {string|number} Visual column index or passed argument.
   */
  propToCol(prop: string | number) {
    const cachedPhysicalIndex = this.propToColCache!.get(prop);

    if (cachedPhysicalIndex !== undefined) {
      return this.hot!.toVisualColumn(cachedPhysicalIndex);
    }

    // Property may be a physical column index.
    if (typeof prop !== 'number') {
      return prop;
    }

    const visualColumn = this.hot!.toVisualColumn(prop);

    // Fall back to the physical index when toVisualColumn returns null
    // (e.g. column is trimmed/hidden and has no visual equivalent).
    return visualColumn !== null ? visualColumn : prop;
  }

  /**
   * Returns data's schema.