From: Thairuby TH <kabkab@...>
Date: 2009-10-21T04:03:08+09:00
Subject: Re: can 35.times do |i| be decrement of "i" ?

#Ruby has "reverse_each" method.

irb(main):001:0> RUBY_VERSION
=> "1.9.1"

irb(main):002:0> 35.times {|i| print i, " "}
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 
27 28 29
30 31 32 33 34 => 35

irb(main):003:0> 35.times.reverse_each {|i| print i, " "}
34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 
10 9 8 7
 6 5 4 3 2 1 0 => #<Enumerator:0x142c840>

#Note that it counts 34 down to 0 (not 35 down to 1).
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