How to compare a string against multiple other strings

Question

Is there a method that let me compare one String with multiple others in Ruby? I really would like to do something like this:

myString.eql?(["string1","string2","string3"])

Answer 1

["string1","string2","string3"].include? myString

Answer 2

You could use Array#include? to see if the array includes the string:

%w(string1 string2 string3).include?(myString)

Answer 3

I find myself wanting this a lot, so I added a String method to be able to do it more idiomatically:

class String
  def among?(*array)
    array.flatten.include?(self)
  end
end

Then

myString.among?("string1","string2","string3")