GutenYe/tagen

class Array
  # Deletes items from self.
  #
  # @example
  #
  #  a = [1, 2, 3]
  #  a.delete_values(1, 3)     -> [1, 3]
  #  a                         -> [2]
    #
    # @return [Array]
  # @see Array#delete
    def delete_values(*values, &blk)
        values.each.with_object([]) {|v,m|
            m << delete(v, &blk)
    }
    end

  # Deletes the element at the specified indexes.
  #
  # @example
  #
  #  a = [1, 2, 3]
  #  a.delete_values_at(0, 2)  -> [1, 3]
  #  a                         -> [2]
  #
    # @return [Array] 
  # @see Array#delete_at
    def delete_values_at(*indexs, &blk)
    offset = 0

    # convert to positve index
    indexs.map { |i| i < 0 ? length + i : i }

        indexs.each.with_object([]) {|i,m|
      if i > length
        m << nil
      else
        m << delete_at(i-offset, &blk)
        offset += 1
      end
    }
    end
end