From: Michel Demazure <lists@...>
Date: 2012-06-25T23:53:51+09:00
Subject: Array#sample is Set#sample and not Array#sample !

Arrays are ordered, sets are not. Sampling an array should give random
elements in the good order. But :

irb(main):001:0> (0..10).to_a.sample(5)
=> [8, 10, 4, 6, 7]

Today's Array#sample actually is Set#sample, but Set#sample does not
exist.

irb(main):002:0> Set.new((0..10)).sample(5)
NoMethodError: undefined method `sample' for #<Set: {0, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10}>

_md

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