Check whether a string contains one of multiple substrings

Question

I\'ve got a long string-variable and want to find out whether it contains one of two substrings.

e.g.

haystack = \'this one is pretty long\'
needle1          


        

Answer 1

I was trying to find simple way to search multiple substrings in an array and end up with below which answers the question as well. I've added the answer as I know many geeks consider other answers and not the accepted one only.

haystack.select { |str| str.include?(needle1) || str.include?(needle2) }

and if searching partially:

haystack.select { |str| str.include?('wat') || str.include?('pre') }