試せばいいのに……

$ ruby -v
ruby 1.8.2 (2004-11-06) [i686-linux]
$ irb
irb(main):001:0> hoge=[1,
irb(main):002:1* 2,
irb(main):003:1* 3,
irb(main):004:1* ]
=> [1, 2, 3]
irb(main):005:0> hoge.size
=> 3