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[英]How to get exact start date and end date of every quarter of a given year in Ruby
[英]Ruby/Rails get start, end date of a given week number of year
根據文檔,我能夠獲得當前一周的當前年份:
Time.current.strftime('%V') => "23"
但是我需要能夠檢索給定周數的開始日期,結束日期的方法。 在此示例中: 2016/06/06 -> 2016/06/12
任何的想法 ?
我認為你需要使用Date
類中的::commercial
方法 。
require 'date'
week = 23
start_week = Date.commercial(2016, week, 1)
# => #<Date: 2016-06-06 ((2457546j,0s,0n),+0s,2299161j)>
end_week = Date.commercial(2016, week, 7)
# => #<Date: 2016-06-12 ((2457552j,0s,0n),+0s,2299161j)>
如果您想要在示例中顯示,請執行以下操作:
puts "#{start_week} -> #{end_week}"
# => 2016-06-06 -> 2016-06-12
參考: http : //ruby-doc.org/stdlib-2.3.1/libdoc/date/rdoc/Date.html#method-c-commercial
請使用以下功能:
Date.now.beginning_of_week
Date.now.end_of_week
p "#{(Time.now + ((Time.current.strftime('%V').to_i) * 7).days).beginning_of_week.strftime('%d/%m/%Y')} -> #{(Time.now + ((Time.current.strftime('%V').to_i) * 7).days).end_of_week.strftime('%d/%m/%Y')}"
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