Micro-benchmark for `value != nil` vs. `!value.nil?`

benchmark.rb

#!/usr/bin/env ruby

require 'benchmark'

Benchmark.bm do |b|
  n = 1_000_000

  value1 = 1
  value2 = nil

  b.report('value != nil') do
    n.times do
      value1 != nil
      value2 != nil
    end
  end

  b.report('!value.nil?') do
    n.times do
      !value1.nil?
      !value2.nil?
    end
  end
end

@AndrewJGregory Faster due to it bit flipping?

ruby 2.7.6p219:

               user     system      total        real
value != nil  0.137024   0.000028   0.137052 (  0.137107)
!value.nil?  0.031404   0.000000   0.031404 (  0.031418)

This should be a rubocop cop, shouldn't it?

@andreavocado it actually is! At first I didn't believe it would have improved the code, which is why I wrote the benchmark.