def contains(self, value):
        """
        Checks if this array contains a value.
        The check uses direct comparison between elements and the specified value.

        :param value: a value to be checked

        :return: true if this array contains the value or false otherwise.
        """
        str_value = StringConverter.to_nullable_string(value)

        for element in self:
            str_element = StringConverter.to_string(element)

            if str_value == None and str_element == None:
                return True
            if str_value == None or str_element == None:
                continue
            
            if str_value == str_element:
                return True

        return False