Method #updateAriaColcount

handsontable/src/tableView.ts:2071–2075

* Update the `aria-colcount` attribute by the provided value. * * @param {number} delta The number of columns to add or remove to the aria tag.

(delta: number)

   * @param {number} delta The number of columns to add or remove to the aria tag.
   */
  #updateAriaColcount(delta: number) {
    const colCount = this.#getAriaColcount() + delta;

    setAttribute(this.hot.rootElement, [A11Y_COLCOUNT(colCount)]);
  }

  /**
   * Updates the class names on the root element based on the presence of scrollbars.