protected function isEmptyRow($dataRow)
    {
        $numCells = count($dataRow);
        // using "reset()" instead of "$dataRow[0]" because $dataRow can be an associative array
        return ($numCells === 1 && CellHelper::isEmpty(reset($dataRow)));
    }
protected function isEmptyRow($dataRow)
    {
        $numCells = count($dataRow);
        // using "reset()" instead of "$dataRow[0]" because $dataRow can be an associative array
        return ($numCells === 1 && CellHelper::isEmpty(reset($dataRow)));
    }
protected function isEmptyRow ( $ dataRow ) { $ numCells = count ( $ dataRow ) ; // using "reset()" instead of "$dataRow[0]" because $dataRow can be an associative array return ( $ numCells === 1 && CellHelper :: isEmpty ( reset ( $ dataRow ) ) ) ; }
Returns whether the given row is empty

@param array $dataRow Array containing data to be written. Cannot be empty.
Example $dataRow = ['data1', 1234, null, '', 'data5'];
@return bool Whether the given row is empty
Returns whether the given row is empty