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@irridescentrambler
Created September 11, 2019 12:34
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[1,2,3,4,5].method(:length).source_location
#=> nil
"Ruby".method(:concat).source_location
#=> nil
class Array
def subset?(sub_array)
sub_array.each do |element|
return false unless self.include?(element)
end
true
end
end
[1,2,3,4].method(:subset?).source_location
#=> ['source_location_demo_1.rb', 8]
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