Crystal Benchmark - gsub vs split & join

gsub-vs-split_join.cr

require "benchmark"
    
Benchmark.ips do |x|
  str = "this   is    text  with   too many    spaces   in it"
  x.report("gsub") do
      500.times { str = str.gsub(/\s+/, " ") }
  end
  x.report("split/join") do
      500.times { str = str.split().join(" ") }
  end
end

result.txt

❯ ./gsub-vs-split_join
      gsub 970.48  (  1.03ms) (± 4.95%)  1.41× slower
split/join   1.37k (730.13µs) (± 3.20%)       fastest