Regexp#=== is faster than String#=~

Discussion fastruby/fast-ruby#59 (comment)

Author: schneems

activesupport/lib/active_support/inflector/inflections.rb

@@ -49,7 +49,7 @@ def add(words)
         end
 
         def uncountable?(str)
-          @regex_array.any? { |regex| str =~ regex }
+          @regex_array.any? { |regex| regex === str }
         end
 
         private