Select a random number a random number of times but never the same random number twice [duplicate]

Question

Possible Duplicate:
How do I generate a list of n unique random numbers in Ruby?

I want to do:

Random.rand(0..10).times do
  puts Random.rand(0..10)
end

with the exception that if a random number has already been displayed it cannot be displayed again. How do I do this most easily?

Answer 1

As a quick one-liner:

rands = (0..10).to_a.shuffle[0, Random.rand(0..10)]