Ruby on rails 有没有办法找到未来6个月内所有星期三的日期
我有一个用例，如果用户选择2014年5月21日（即星期三）这样的日期。然后，我需要找到接下来6个月所有星期三的日期 在rails中有更简单的方法或api吗Ruby on rails 有没有办法找到未来6个月内所有星期三的日期,ruby-on-rails,ruby,ruby-on-rails-3,Ruby On Rails,Ruby,Ruby On Rails 3,我有一个用例，如果用户选择2014年5月21日（即星期三）这样的日期。然后，我需要找到接下来6个月所有星期三的日期 在rails中有更简单的方法或api吗 2.1.1 :041 > date = Date.today + 1.day Wed, 21 May 2014 2.1.1 :042 > array = [] [] 2.1.1 :043 > 24.times { array.push(date); date += 7.days; } 24 2.1.1 :044 > a
2.1.1 :041 > date = Date.today + 1.day
Wed, 21 May 2014
2.1.1 :042 > array = []
[]
2.1.1 :043 > 24.times { array.push(date); date += 7.days; }
24
2.1.1 :044 > array
[
[ 0] Wed, 21 May 2014,
[ 1] Wed, 28 May 2014,
[ 2] Wed, 04 Jun 2014,
[ 3] Wed, 11 Jun 2014,
[ 4] Wed, 18 Jun 2014,
[ 5] Wed, 25 Jun 2014,
[ 6] Wed, 02 Jul 2014,
[ 7] Wed, 09 Jul 2014,
[ 8] Wed, 16 Jul 2014,
[ 9] Wed, 23 Jul 2014,
[10] Wed, 30 Jul 2014,
[11] Wed, 06 Aug 2014,
[12] Wed, 13 Aug 2014,
[13] Wed, 20 Aug 2014,
[14] Wed, 27 Aug 2014,
[15] Wed, 03 Sep 2014,
[16] Wed, 10 Sep 2014,
[17] Wed, 17 Sep 2014,
[18] Wed, 24 Sep 2014,
[19] Wed, 01 Oct 2014,
[20] Wed, 08 Oct 2014,
[21] Wed, 15 Oct 2014,
[22] Wed, 22 Oct 2014,
[23] Wed, 29 Oct 2014
]
(today..six_months).select &:wednesday?
(today..six_months).select &:wednesday?