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Arakaki-Yuji/uniq_rand_ary.rb

Created October 8, 2012 07:53
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making array that filled the numbers, these are random and uniq.
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uniq_rand_ary.rb
def uniq_rand_ary(size)
ary1 = []
ary2 = []
size.times do |i|
ary1 << i
end
count = ary1.size
count.times do |c|
ary2 << ary1.delete_at(rand(count - c))
end
return ary2
end
@Arakaki-Yuji
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uniq_rand_ary(size) can use making a array that are filled the numbers

size of array is first argument.

first argument must be Numeric

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