module Benchmarks::Helpers::Refinements - rendezvous with cassidoo

Various ‘refinements’ aka monkey-patched standard classes

Source

# File benchmarks/benchmarks_helpers.rb, line 24
def to_unds
  to_s.gsub(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1_")
end

Format Ruby Integers with underscore

Integer#to_unds returns a string adding underscores to improve readability for large Integer literals.

1000000000000000.to_unds      # => "1_000_000_000_000_000"
100_00000_00_0000_00.to_unds  # => "1_000_000_000_000_000"