ruby hex encode algorithm performance comparison

hex_benchmark.rb

require 'benchmark'

ITERATIONS=100_000
INPUT='https://www.example.com/path/to/image.png'.freeze

def interpolate
  INPUT.to_enum(:each_byte).map{ |byte| "%02x" % byte }.join
end

def unpack
  INPUT.unpack('H*').first
end

Benchmark.bmbm do |b|
  b.report 'interpolation' do
    ITERATIONS.times { interpolate }
  end

  b.report 'String#unpack' do
    ITERATIONS.times { unpack }
  end
end

puts
puts "        input: #{INPUT}"
puts "interpolation: #{interpolate}"
puts "String#unpack: #{unpack}"