jjb · March 8, 2019 19:10
diff --git a/concat.rb b/concat.rb
 t = Time.now
 a = []
 10_000_000.times do
  a << "a" + " " + "b"
 end
 puts Time.now.to_f - t.to_f
diff --git a/interp.rb b/interp.rb
 t = Time.now
 a = []
 10_000_000.times do
  a << "#{"a"} #{"b"}"
 end
 puts Time.now.to_f - t.to_f
diff --git a/results.txt b/results.txt
 ➔ ruby interp.rb
 1.5596427917480469
 ➔ ruby concat.rb
 7.423596143722534