Method _getCellRole

src/cdk/table/table.ts:475–485

Aria role to apply to the table's cells based on the table's own role.

()

  /** Aria role to apply to the table's cells based on the table's own role. */
  _getCellRole(): string | null {
    // Perform this lazily in case the table's role was updated by a directive after construction.
    if (this._cellRoleInternal === undefined) {
      // Note that we set `role="cell"` even on native `td` elements,
      // because some browsers seem to require it. See #29784.
      const tableRole = this._elementRef.nativeElement.getAttribute('role');
      return tableRole === 'grid' || tableRole === 'treegrid' ? 'gridcell' : 'cell';
    }

    return this._cellRoleInternal;
  }
  private _cellRoleInternal: string | null | undefined = undefined;

  /**