22 Sep, 2010, David Haley wrote in the 22nd comment:
What version is documented on the link I gave, then?
22 Sep, 2010, bbailey wrote in the 23rd comment:
David Haley said:
What version is documented on the link I gave, then?
1.8.6, the last 'pure' 1.8 version. 1.8.7 is all new-fangled 1.8+1.9 hybridish so ruby-doc.org left the default docs at 1.8.6.
22 Sep, 2010, Tyche wrote in the 24th comment:
Runter said:
I suspect it may not be available in all implementations of ruby.
For the 1.8.6 fork you can use a gem called backports to get additional functions.
ruby -e 'require "backports";deck = (1..52).to_a; p deck; p deck.shuffle!; p deck.shuffle!'
The difference in distributions between a 52-card deck shuffled with the N^N versus N! is for practical game considerations negligible.
You can't manually shuffle a deck that fairly. ;-)
shuffle and shuffle! were added, IIRC, in 1.9 (and backported to 1.8.7), and both are present in the 1.8.7 and 1.9 docs.