dbc_ruby_intro_29

class Array
    #changes the array
    def pad!(min_size, value = nil)
        if min_size <= self.length
            return self.clone
        elsif min_size > self.length
            (min_size - self.length).times do
                self << value
            end
            return self.clone
        end
    end

    #keeps original array the same
    def pad(min_size, value = nil)
        result = []
        result << self.clone
        if min_size <= self.length
            return result
        elsif min_size > self.length
            (min_size - self.length).times do
                result << value
            end
            return result
        end
    end
end