Check if Array items are in another Array
require 'set'
class Array
def included_in? array
array.to_set.superset?(self.to_set)
end
end
check_me = ['hello', 'my', 'name', 'is', 'kareem']
set_me = ['name', 'is', 'kareem']
set_me.included_in?(check_me) #=> true