Ruby on Rails

Valery Kvon wrote in post #1049372:
> You'd better to implement method:
>
> def secure(number, precision)
> collection = []
> collection |= [SecureRandom.random_number.round(precision)] while
> collection.size < number
> collection
> end
>
>> secure(500, 3)
> => collection of 500 unique random numbers.

One simple way to get what you want is by using a set:

Here's your method of generating random numbers. Don't count on it
giving you "secure" random numbers, but this technique won't care how
you produced them.

#!/usr/bin/env ruby
require 'set'

def random_numbers(n = 500)
my_set = Set.new
while my_set.size < 500
value = Integer((rand * 1) * 1000) / Float(1000)
my_set << value
end
my_set.to_a
end

puts random_numbers.size

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