"manual unique" vs "set"

container-benchmark-unique.rb

require 'set'

a = []
(1..100000).each do |i|
	a << rand(1000)
end

def benchmark
  start = Time.now
  yield
  puts Time.now - start
end

u = []
puts 'array uniques'
benchmark do
	a.each do |i|
		u << i unless u.include? i
	end
end

puts u.count

u = Set.new
puts 'set uniques'
benchmark do
	a.each do |i|
		u << i
	end
end

puts u.count