需要「字符串」爲：字符串

Question

我需要讓我的「串」到：字符串

目前，我有這個，給這樣的：

Holidays.between(from, to, ":de") 

但我需要這個

Holidays.between(from, to, :de) 

請幫忙！

Answer 1

假設你正在使用的Holidays寶石，只是從你的字符串中刪除冒號，即使用"de"代替":de"。寶石處理轉換爲您提供：

require 'holidays' 

from = Date.civil(2014, 1, 1) 
to = Date.civil(2014, 12, 31) 

Holidays.between(from, to, "de") 
#=> [{:date=>#<Date: 2014-01-01 ((2456659j,0s,0n),+0s,2299161j)>, :name=>"Neujahrstag", :regions=>[:de]}, {:date=>#<Date: 2014-04-18 ((2456766j,0s,0n),+0s,2299161j)>, :name=>"Karfreitag", :regions=>[:de]}, {:date=>#<Date: 2014-04-21 ((2456769j,0s,0n),+0s,2299161j)>, :name=>"Ostermontag", :regions=>[:de]}, {:date=>#<Date: 2014-05-01 ((2456779j,0s,0n),+0s,2299161j)>, :name=>"Tag der Arbeit", :regions=>[:de]}, {:date=>#<Date: 2014-05-29 ((2456807j,0s,0n),+0s,2299161j)>, :name=>"Christi Himmelfahrt", :regions=>[:de]}, {:date=>#<Date: 2014-06-09 ((2456818j,0s,0n),+0s,2299161j)>, :name=>"Pfingstmontag", :regions=>[:de]}, {:date=>#<Date: 2014-10-03 ((2456934j,0s,0n),+0s,2299161j)>, :name=>"Tag der Deutschen Einheit", :regions=>[:de]}, {:date=>#<Date: 2014-12-25 ((2457017j,0s,0n),+0s,2299161j)>, :name=>"1. Weihnachtstag", :regions=>[:de]}, {:date=>#<Date: 2014-12-26 ((2457018j,0s,0n),+0s,2299161j)>, :name=>"2. Weihnachtstag", :regions=>[:de]}] 

目前還不清楚其中結腸來自擺在首位（看起來像一個bug），但你也許應該修復它在那裏，而不是轉換的字符串。

Answer 2

String#to_sym是你需要呼籲串to_sym什麼，它成爲一個符號

你需要將其轉換爲字符串（以獲得所需的確切標誌），所以低於之前刪除字符串中的:會做到這一點

Holidays.between(from, to, ":de".sub(":","").to_sym) #=> Holidays.between(from, to, :de)