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marka2g/opposite_of_array_intersection.rb

Forked from chadmiko/opposite_of_array_intersection.rb
Created March 16, 2018 01:47
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Ruby opposite of array intersection
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opposite_of_array_intersection.rb
# Ruby opposite of array intersection... or maybe the method is missing from my brain bc not enough coffee
# http://twitter.com/soawesomeman/status/8035087261
def awesome(ar_1, ar_2)
(ar_1 + ar_2) - (ar_1 & ar_2)
end
awesome([1,2,3,4], [3,4,5,6]) # => [1, 2, 5, 6]
# bonus code from @texel
# http://twitter.com/texel/status/8035307156
(a - (a & b)) | (b - (a & b)) # => nice one!
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