Ruby regex key search

Question

http://ruby-doc.org/core-1.9.3/Hash.html#method-i-include-3F

It is possible to convert hash.has_key?(String) to have a regex search capabilities?

Answer 1

I am not aware of an absolute answer for this question but if I were to write a hacky method for this, I would do this

!!hash.keys.detect{ |k| k.to_s =~ /Your_Regex_here/ }

This will return true when any key matches regex and false otherwise.