mod-based even/odd vs bit-based even/odd

benchmark_mod_even_vs_bit_even

def odd_or_even_mod(number)
  return "Even" if number % 2 == 0
  return "Odd"
end
def odd_or_even_bit(number)
  return "Even" if number & 1 == 0
  return "Odd"
end

require 'benchmark'
Benchmark.bm(40) do |x|
  x.report ('mod even/odd') do
    100_000.times do
      odd_or_even_mod(948479784)
      odd_or_even_mod(948479785)
    end
  end
  x.report('bitwise even/odd') do
    100_000.times do
      odd_or_even_bit(948479784)
      odd_or_even_bit(948479785)
    end
  end
end