Is there an inverse 'member?' method in ruby?

Question

I often find myself checking if some value belongs to some set. As I understand, people normally use Enumerable#member? for this.

end_index = [\         


        

Answer 1

Not in ruby but in ActiveSupport:

characters = ["Konata", "Kagami", "Tsukasa"]
"Konata".in?(characters) # => true