Did I mention that I love Ruby?

I’m busy coding an application, and I needed to find out if some value is included in one of several arrays:

a = [ 1, 2, 3 ]
b = [ 2, 3, 4, 5 ]
x = 5
y = 6

Now the question is: Is x in either Array a or b?

arrays = [a, b]
arrays.inject(false) { |is_in, array| is_in or array.include?( x ) } # => true
arrays.inject(false) { |is_in, array| is_in or array.include?( y ) } # => false

Beautiful! (or is there a better way?)

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