紅寶石 - 我可以縮短聲明，並返回一個數組

Question

看起來這將是一個相當普遍的模式這7行法 - 聲明數組並返回它：

def self.show_day_rows(days, month, year, offset) 
    daylines=[] 
    1.step(days,7).each do |line_starts_with| 
    daylines << CalDay.line_of_day_nums(month, year, line_starts_with, offset) 
    end 
    daylines 
end 

有沒有辦法縮短這個，但仍然清晰可辨？

Answer 1

def self.show_day_rows(days, month, year, offset) 
    1.step(days,7).map do |line_starts_with| 
    CalDay.line_of_day_nums(month, year, line_starts_with, offset) 
    end 
end 

Answer 2

@ tihorn的回答有輕微的變體：

def self.show_day_rows(days, month, year, offset) 
    1.step(days,7).inject([]) do |daylines, line_starts_with| 
    daylines << CalDay.line_of_day_nums(month, year, line_starts_with, offset) 
    end 
end