From: Joel VanderWerf <vjoel@...>
Date: 2007-01-27T06:16:17+09:00
Subject: Re: some small suggestions to Array

藍寧 wrote:
...
>    a[[1,3..4]] should be [2,4,5]

The #values_at method is useful for this:

irb(main):001:0> a = (0..9).to_a
=> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
irb(main):002:0> a.values_at(1..3, 5..7)
=> [1, 2, 3, 5, 6, 7]
irb(main):003:0> a.values_at(1..3, 5, 7)
=> [1, 2, 3, 5, 7]

-- 
      vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407