Good notes posted by anoiaque
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anoiaque -
June 22, 2012 - (v1_8_6_287 - v1_9_3_125)
3 thanks
Test if an array is included in another
Array
class Array def included_in? array array.to_set.superset?(self.to_set) end end [1,2,4].included_in?([1,10,2,34,4]) #=> true