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| Benchmark.realtime do | |
| File.new('./one_to_a_million.txt') | |
| .readlines.map(&:to_i) | |
| .map { |x| x - 999_990} | |
| .select { |x| x >= 0 } | |
| end | |
| #=> 0.598499 | |
| Benchmark.realtime do | |
| File.new('./one_to_a_million.txt')[Int] | |
| .map { |x| x - 999_990 } | |
| .select { |x| x >= 0 }[Fixnum] | |
| end | |
| #=> 0.32548 |
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