ruby 1.9 methods in ruby 1.8.6

Posted by tig on Stack Overflow See other posts from Stack Overflow or by tig
Published on 2009-07-19T17:19:26Z Indexed on 2010/04/08 21:03 UTC
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ruby

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methods

Is there a gem or a library to get ruby 1.9 methods like

[1, 2, 3].combination(2)
[1, 2, 3].permutation(2)
[1, 2, 3].product([1, 2, 3])
[1, 2, 3, 4, 5].cycle

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