reverse-each-vs-reverse_each.cr

require "benchmark"
puts Crystal::DESCRIPTION

ARRAY = (1..100).to_a

def slow
  ARRAY.reverse.each { |x| x }
end

def fast
  ARRAY.reverse_each { |x| x }
end

Benchmark.ips do |x|
  x.report("Array#reverse.each") { slow }
  x.report("Array#reverse_each") { fast }
end